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78-481: The Yamaha FZ750 is a sports motorcycle produced by Yamaha Motor Corporation between 1985 and 1991. The FZ750 is notable for several reasons, perhaps the most radical being the 5-valve cylinder head. This became something of a Yamaha trademark. The FZ750 would be the first bike in the Genesis design concept. The bikes were known for their linear power delivery, with a maximum speed around 140 mph. The engine has

156-517: A polyphase winding is used and the pole-pieces of the rotor are shaped (claw-pole). Automotive alternators are usually belt -driven at 2–3 times crankshaft speed, speeds that could cause a commutator to fly apart in a generator. The alternator runs at various RPM (which varies the frequency) since it is driven by the engine. This is not a problem because the alternating current is rectified to direct current . Alternator regulators are also simpler than those for generators. Generator regulators require

234-399: A voltage regulator which operates by modulating the small field current to produce a constant voltage at the battery terminals. Early designs (c.1960s–1970s) used a discrete device mounted elsewhere in the vehicle. Intermediate designs (c.1970s–1990s) incorporated the voltage regulator into the alternator housing. Modern designs do away with the voltage regulator altogether; voltage regulation

312-435: A 3 phase alternator may be connected using either the delta or star ( wye ) connection regime set-up. Brushless versions of these type alternators are also common in larger machinery such as highway trucks and earthmoving machinery. With two oversized shaft bearings as the only wearing parts, these can provide extremely long and reliable service, even exceeding the engine overhaul intervals. Automotive alternators require

390-439: A Harley-Davidson or other cruisers with full sets of saddlebags. This can now refer to any touring motorcycle. Sport bikes are road bikes that emphasize top speed, acceleration, braking, handling and grip, typically at the expense of comfort and fuel economy in comparison to other motorcycle types. Sport bikes have comparatively high performance engines supported within a lightweight frame. Inline-four engines dominate

468-428: A bank behind and above the cylinders and feed each cylinder through short, straight and almost vertical inlet. The airbox is situated in what would conventionally be the forward part of the fuel tank. The fuel tank is situated behind and below the carburetors and fuel is lifted via an electric fuel pump. The four exhaust downpipes are crossover linked by cylinders 1-4 and 2-3 and exit through two silencers. The crankshaft

546-467: A battery nor did it encourage the use of one before it introduced an electric starter in 1919. The owner would have to install the battery themselves and charge it externally.) Starting in the 1919 model year, Ford upgraded the Model T to include an electric starter, which was standard for some models and optional for others. This starter installation also included a battery, charged by a conventional dynamo, and

624-473: A bicycle drivetrain, and motive power can be supplied by the engine, the rider, or both. There are also Sport mopeds – a type of moped that resembles a sport bike . In many places, mopeds are subject to less stringent licensing than bikes with larger engines and are popular as very cheap motorbikes, with the pedals seeing next to no use. Mopeds were very popular in the United States during the fuel-crisis of

702-523: A combination of all. An optional full fairing was also available. A considerable redesign saw a slight weight loss and a move to make the machine arguably more suitable for sports touring. Most noticeable was new full fairing panels, new sidepanels and a redesigned rear subframe that had integrated number plate/rear light. The front indicators were moved to exit through the bodywork. Minor engine changes included slightly shorter pistons and longer connecting rods. A new digital ignition unit that required only

780-474: A cutout relay to isolate the output coils (the armature) from the battery at low speed; that isolation is provided by the alternator rectifier diodes. Also, most generator regulators include a current limiter; alternators are inherently current-limited. The claw pole design produces an AC waveform that is more efficiently rectified than a sine wave. Despite their names, both 'DC generators' (or 'dynamos') and 'alternators' initially produce alternating current. In

858-459: A dense central band where the iron core and copper windings are tightly packed, and end bands where the windings are more exposed for better heat transfer. The closer core spacing from the rotor improves magnetic efficiency. The smaller, enclosed fans produce less noise, particularly at higher machine speeds. Alternators can also be water-cooled in cars. Larger vehicles may have field coil alternators similar to larger machines. The windings of

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936-782: A dirt bike chassis, they have added lights, mirrors, signals, and instruments that allow them to be licensed for public roads. They are higher than other street bikes, with a high center of gravity and tall seat height, allowing good suspension travel for rough ground. Adventure motorcycles (ADV) are motorcycles with touring capability on paved and unpaved roads. As a dual-sport they have a significant on-pavement bias and perform well on pavement at higher speeds unlike most dual-sports. Their size, weight and sometimes their tires, however, limits their off-road capability. Most adventure motorcycles function well on graded dirt and gravel roads but are less than ideal on more difficult off-pavement terrain. Supermoto motorcycles were designed to compete on

1014-486: A fixed magnet Dynamo Generator and therefore does not need the separate regulator/rectifier which was common on other machines. The starter motor is mounted behind the cylinder block and drives the secondary shaft via a Sprag clutch . A variable-resistance gauging system is used to monitor engine oil contents with an associated warning light. Nippondenso Transistor Controlled Ignition is used in conjunction with two ignition coils . An electrical tachometer, (along with

1092-453: A forward-inclined cylinder block which effectively lowers the centre of gravity. This results in a relatively long wheelbase, which hampered it when used for short circuit racing, but lowered the centre of gravity and provided an almost 50/50 weight distribution. What was clear was that Yamaha had considered the engine design as part of the overall package. The FZ750 show-cased Yamaha's design skills. Yamaha began development in 1977 to replace

1170-428: A higher-displacement engine, ranging from 400cc to 850cc (24.5−51.9 cu in), and superior performance, designed for covering long distances at high speeds. However, their considerably greater weight and lower agility make them suitable for use in the city or on highways. A scooter is considered to fall into the mega-scooter category when its displacement exceeds 400cc. Underbones are small-displacement motorcycles with

1248-415: A mechanical Speedometer) fuel and temperature gauges are provided. An electrical reserve fuel system simulates a conventional fuel reserve by cutting power to the fuel pump when fuel in the tank reaches a certain level, reserve fuel could then be engaged from a switch. In this way the fuel pump never runs dry. Where markets allowed a dual single unit headlight of 35w each was fitted but other markets required

1326-472: A relaxed, upright seating position. Passenger accommodation is excellent and expansive luggage space is the norm for this class. Such bikes can have wet weights of 850–900 lb (390–410 kg) and top 1,300–1,400 lb (590–640 kg) fully loaded with a rider, passenger and gear. Bagger , full dresser , full dress tourer , or dresser are various names for touring motorcycles, sometimes used disparagingly or jocularly, and originally referring to

1404-401: A rising-rate suspension via two forged aluminium link arms. The 16-inch (410 mm) front wheel is suspended by air and oil damped forks . The FZ750 features a 12  volt electrical system and had for the time featured advanced user features such a side stand cutout, oil level sensing and self cancelling indicators. The FZ750 was also fitted with an AC Alternator (automotive) and not

1482-594: A river, mud or snow. These types of terrain can sometimes only be travelled on with vehicles designed for off-road driving (such as SUVs , ATVs , snowmobiles and mountain bikes in recent decades, and minibikes even earlier) or vehicles are designed to better handle off-road conditions. Compared to road-going motorcycles, off-road machines are lighter and more flexible, typically having long suspension travel , high ground clearance, and are geared higher to provide more torque in off-road situations. Wheels (usually 21" front, 18" rear) have knobby tires , often clamped to

1560-1241: A seat, and a flat foot platform, allowing the rider to maintain an upright posture without straddling the engine. This configuration not only enhances rider comfort but also contributes to fuel efficiency . Currently, three main types of scooters are recognized, each with its own characteristics and applications: Standard scooter: This type of scooter is ideal for urban mobility due to its ease of handling and parking. They are lightweight, comfortable, and agile vehicles, perfect for navigating through dense city traffic. Their wheels are usually smaller than those of conventional motorcycles, with diameters ranging from 12 to 15 inches (30.5−38 cm), and they have an engine displacement ranging from 50cc to 150cc (3.1−9.2 cu in). Maxi-scooter: Maxi-scooters are equipped with high-displacement engines, ranging from 125cc to 250cc (7.7–15.3 cu in), designed for covering long distances at high speeds. Although they are heavier and less agile than standard scooters, they are commonly used in cities and suburbs due to their larger fuel tank capacity and larger wheels, which can reach 15 or even 16 inches (38.1−40.7 cm). Mega-scooter: also known as touring scooters , like maxi-scooters, mega-scooters feature

1638-424: A single 55w headlight, that did not fit as well in the large rectangular opening. Self-cancelling indicators where fitted, which are distance controlled by a reed switch within the speedometer. FZ750 models can be split into three distinct model series in accordance with the first letter of the model suffix: The definitive FZ and with short half fairing panels which displayed the forward inclined engine but covered

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1716-527: A single course that alternated between three genres of motorcycle racing : road racing , track racing , and motocross . This increasingly popular type of motorcycle is often a dual-sport that has been fitted by the manufacturer with smaller rims and road tires. Supermotos are quickly gaining popularity as street bikes due to their combination of light weight, durability, relatively low cost, and sporty handling. Sport touring motorcycles combine attributes of sport bikes and touring motorcycles. The rider posture

1794-422: A single pickup over the previous twin pickups and repositioned ignition coils. A push-pull throttle twin throttle cable system was installed. A 4-2 exhaust was replaced with a much lighter 4-1 system. A side stand cutout was now provided on the redesigned sidestand. The rear suspension was altered to a forged steel 'dogbones' with an aluminum rocker, replacing the forged twin link type, this resulted in deletion of

1872-478: A slightly wider rear rim made the bike suitable for the latest radial tires and both wheels were a hollow spoke design. In the United Kingdom and possibly other markets, some unsold 2MG bikes were brought up to series 3 standard, many were not registered until 1989 or later, but still carried the 2MG suffix. The 3BY models destined for Switzerland where restricted to 100hp. This model was officially sold only in

1950-448: A so-called 'DC generator', this AC current is generated in the rotating armature, and then converted to DC by the commutator and brushes. In an 'alternator', the AC current is generated in the stationary stator, and then is converted to DC by the rectifiers (diodes). Typical passenger vehicle and light truck alternators use Lundahl or 'claw-pole' field construction. This uses a shaped iron core on

2028-434: A step-through frame, descendants of the original Honda Super Cub . They are differentiated from scooters by their larger wheels and their use of footpegs instead of a floorboard. They often have a gear shifter with an automatic clutch. The moped used to be a hybrid of the bicycle and the motorcycle, equipped with a small engine (usually a small two-stroke engine up to 50 cc, but occasionally an electric motor ) and

2106-585: A type of cruiser, so called because they are a "chopped", or cut-down, version of a production cruiser. Choppers are usually custom projects that result in a bike modified to suit the owner's ideals, and, as such, are a source of pride and accomplishment. Stereotypically, a chopper may have raked-out forks, small fuel tanks and high handlebars. Choppers were popularised in the Peter Fonda film Easy Rider . Being designed primarily for visual effect, choppers will rarely be suitable for lengthy cruising. Related to

2184-400: Is a motorized bicycle used for motor-paced cycling events. While motorcycles typically have two wheels, some motorized tricycles are classed as three-wheeled motorcycles. Some brands have made various types of three-wheelers direct from the factory. Most of these vehicles are treated as motorcycles for registration or licensing purposes. Tilting three-wheelers keep all three wheels on

2262-420: Is above 96%. Large AC generators used in power stations run at carefully controlled speeds and have no constraints on size or weight. They have very high efficiencies as high as 98%. Hybrid electric vehicles replace the separate alternator and starter motor with one or more combined motor/generator(s) that start the internal combustion engine, provide some or all of the mechanical power to the wheels, and charge

2340-411: Is geared directly to the clutch . No counter balancer shaft is used. The engine width is minimised by placing the starter clutch, alternator, water and oil pump behind the engine and are driven via a secondary shaft. Starting is by electric and lubrication is wet sump using a trochoid pump. The FZ750 uses a six-speed sequential close ratio gearbox ; the gear shafts are only removable by splitting

2418-470: Is less extreme than a sport bike, giving greater long-distance comfort. Accommodation for a passenger is superior to a sport bike as well, along with increased luggage capacity. Being lighter, at 550–720 lb (250–330 kg) wet, than a pure touring bike and often having racier engines, suspensions, and brakes, sport tourers corner better and are more at home being aggressively ridden on curvy canyon roads. The distinction between touring and sport touring

Yamaha FZ750 - Misplaced Pages Continue

2496-665: Is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. Efficiency reduces dramatically at high speeds mainly due to fan resistance. At medium speeds efficiency of today's alternators is 70–80%. This betters very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. Larger permanent magnet electric machines (that can operate as motors or alternators) can achieve today much higher efficiencies. Pellegrino et al., for instance, propose not particularly expensive designs that show ample regions in which efficiency

2574-413: Is manufactured from box-section steel and is of a perimeter type, with removable engine downtubes. The engine forms a stressed member of the chassis. The front fairing and upper rear section use separate sub-frames. The rear shock absorber which is remote adjustable for damping and spring preload is placed vertically behind the engine and connects to an extruded aluminium alloy swinging arm to provide

2652-541: Is not always clear as some manufacturers will list the same bike in either category in different markets. The Honda ST1300 Pan-European , for example, was listed by Honda as a sport touring motorcycle in the United States and Australia, but as a touring motorcycle in Europe. Scooters are a type of motorcycles distinguished by their continuously variable automatic transmission (CVT) and distinctive design. Unlike traditional motorcycles, scooters feature an open frame structure,

2730-520: Is now a function of the engine control unit (ECU). The field current is much smaller than the output current of the alternator; for example, a 70 A alternator may need only 2-3 A of field current. The field current is supplied to the rotor windings by slip rings. The low current and relatively smooth slip rings ensure greater reliability and longer life than that obtained by a DC generator with its commutator and higher current being passed through its brushes. The field windings are supplied with power from

2808-734: The Castrol Six Hour and Arai 500 Bathurst in 1985 and 1986. Placed first in the Castrol Six Hour (New Zealand) and the Daytona 200 in 1986 Placed first in the Superstock class of the North West 200 in 1987. The FZ750 engine mounted in a Bimota chassis as the Bimota SB4 placed first in the inaugural Superbike World Championship round in 1987. In 1986 three Italian riders Norberto Naummi, Roberto Ghillani and Maurizio Foppiani attempted to break

2886-650: The Yamaha YZR500 was fitted. These features would soon appear on the 1987 Yamaha FZR750/1000 . In the 1985 Suzuka 8 hours Endurance Race, Kenny Roberts and Tadahiko Taira came close to winning but retired because of mechanical trouble in the final phase of the race. An example of a FZ750 1FN is preserved at the Barber Motorsports Park Museum. An example of a FZ750 1FN, the Daytona 200 winning works FZ750 OU45 and works endurance FZR750 OW74 are preserved at

2964-522: The ambulance , blood bikes , fire , and military services, and for specialized delivery services, such as pizza deliveries . Beginning in the 1960s with the Mountain Goat specialized motorcycles were developed for use on farms. The Motocrotte (or cainette ) was used in Paris to collect dog waste with vacuum suction in the 1980s and 1990s, and was still in use in other French cities as of 2016. A derny

3042-573: The minibike , monkey bike , Welbike , pocketbike , and pit bike . Enclosed motorcycles include cabin motorcycles and streamliner motorcycles . Feet forwards motorcycles include the 1911 Wilkinson TMC and the 1918 Ner-A-Car . Contemporary examples include the Quasar , powered by a Reliant Robin engine, and the Peraves range powered mainly by BMW K Series engines. Some motorcycles are specially adapted for specific job functions, such as those used by

3120-499: The 1930s to the early 1960s, such as those made by Harley-Davidson , Indian , and Excelsior-Henderson . Harley-Davidsons largely define the cruiser category, and large- displacement V-twin engines are the norm, although other engine configurations and small to medium displacements also exist. Their engines are tuned for low-end torque, making them less demanding to ride because it is not necessary to shift as frequently to accelerate or maintain control. The riding position places

3198-546: The 1960s, automobiles used DC dynamo generators with commutators . As silicon-diode rectifiers became widely available and affordable, the alternator gradually replaced the dynamo. This was encouraged by the increasing electrical power required for cars in this period, with increasing loads from larger headlamps, electric wipers, heated rear windows , and other accessories. The modern type of vehicle alternators were first used in military applications during World War II , to power radio equipment on specialist vehicles. After

Yamaha FZ750 - Misplaced Pages Continue

3276-548: The FZ750 with a slightly detuned engine, as the Yamaha FZX750 . In 1987 Yamaha took advantage of the high performance and good stability of the FZ750 to release a police model FZ750P 2KW. Using a mixture of parts from previous Yamaha and FZ750 models the machine had a single seat and provision for police equipment, including a calibrated Speedometer. Some machines were imported to Taiwan to be used for escort duties after retirement from

3354-805: The Japanese Police Force. Designed for competition in the AMA Superbike Championship Daytona 200, this machine was based on the FZ750 production model. With the transfer of the AMA Daytona 200 title from the Formula 1 class to the Superbike class in 1985, this machine recorded its 14th win ridden by Eddie Lawson in the 1986 Daytona 200 . The bike contained many exotic parts such as a cable operated clutch, performance camshafts, dry clutch and oil cooler. Many of these parts found their way into

3432-552: The United States. A slightly reduced stroke of 48mm gave the FZ700 2KU a capacity of 697cc in order to beat the United States 1983 motorcycle tariff on motorcycles over 700cc. Despite being outwardly similar to any other series 2 machine, the engine had more in common with the FZR750 with lightweight pistons and connecting rods. The sales success of the Yamaha VMAX led to a cruiser version of

3510-564: The Yamaha Communications Plaza. The FZ750 had a successful racing career Unusually at all levels of the sport from Clubman racing to full works International series. The bike still remains popular in the hands of privateers and is eligible for the Superstock racing class around the world. A factory Race Kit containing performance engine parts was made available. Placed third in the Isle of Man TT Formula 1 race in 1985. Placed first in

3588-580: The basis for many future models by Yamaha. The FZ750 was unveiled at the IFMA motorcycle show in Germany in the autumn of 1984. And 1991 would be the last year the machine would be listed. The FZ750 uses an all-aluminium, liquid-cooled, transverse-mounted, four-cylinder engine. The complex cylinder head is constructed in two halves, with dual chain-driven overhead camshafts operating 20 valves, 3 inlet and 2 exhaust valves per cylinder. Although disputed in recent years, it

3666-454: The battery via the ignition switch and regulator. A parallel circuit supplies the "charge" warning indicator and is earthed via the regulator (which is why the indicator is on when the ignition is on but the engine is not running). Once the engine is running and the alternator is generating power, a diode feeds the field current from the alternator main output equalizing the voltage across the warning indicator which goes off. The wire supplying

3744-402: The centre stand. The remote adjuster for the rear shock was also deleted. The rear footpegs were now separate items with cast aluminum hangers and the machines now sported a red or blue 'speedblock' color scheme. Only minor changes, which included a more subdued color schemes. New front brake discs up from 270mm to 300mm floating type, along with 4 piston calipers. The front wheel was now 17" and

3822-909: The chopper motorcycle is the bobber , a solo bike which is created by "bobbing" a factory bike by removing superfluous weight and bodywork from a motorcycle to reduce mass and increase performance. A common element of these motorcycles is a shortened rear fender that creates a "bobbed" look. Power cruiser is a name used to distinguish bikes in the cruiser class that have significantly greater levels of power. They typically have with upgraded brakes and suspensions, better ground clearance, and premium surface finishes, as well as more exotic or non-traditional styling. Although any motorcycle can be equipped and used for touring, touring motorcycles are specifically designed to excel at covering long distances. They have large-displacement engines, fairings and screens that offer good weather and wind protection, large-capacity fuel tanks for long ranges between fill-ups, and

3900-480: The coils to make good sparks. The Model T incorporated its magneto into the engine flywheel. The first Model Ts used the magneto solely for the trembler coil ignition. Beginning with the 1915 model year, Ford added electric headlights, also powered by the magneto. The magneto circuit was strictly AC, with no battery included. (There was a switch on the ignition coils to use a battery instead, which could be helpful when starting in cold weather, but Ford neither provided

3978-400: The compact alternator layout. This is electrically and magnetically similar, but has improved air cooling. Better cooling permits more power from a smaller machine. The casing has distinctive radial vent slots at each end and now encloses the fan. Two fans are used, one at each end, and the airflow is semi-radial, entering axially and leaving radially outwards. The stator windings now consist of

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4056-403: The crankcase halves. The clutch is of the wet, multi-plate type and is hydraulically operated. Final drive is by O-ring chain and sprockets . A safety feature of the FZ750 is that the engine ignition is cut if first gear is selected with the sidestand down; this is commonplace on modern motorcycles. The chassis was designed to facilitate the unique engine configuration. The frame of the FZ750

4134-438: The engine, along with windscreens that effectively deflect the air at high speeds away from the rider, thereby minimising overall drag. Sport bikes may have footpegs that are both higher and set further back than on a standard bike, improving ground clearance when cornering and enabling a more prone position for the rider. There may be a long reach to the hand controls, which positions the body and center of gravity forward, above

4212-590: The fairings removed and higher handlebars replacing the low clip-on handlebars. Since the 1990s, factory streetfighters have been produced. As with naked bike and muscle bike (below), the name streetfighter is used to help clarify the middle ground occupied by designs that blend elements of both sport bikes and standards. Off-road motorcycles , also known as dirt bikes or scramblers , specially designed for off-road use. The term off-road refers to driving surfaces that are not conventionally paved. These are rough surfaces, often created naturally, such as sand, gravel,

4290-443: The feet forward and the hands are up relatively high, so that the spine is erect or leaning back slightly. At low to moderate speeds, cruisers are more comfortable than other styles, but riding for long periods at freeway speeds can lead to fatigue from pulling back on the handlebars to resist the force of the wind against the rider's chest. Cruisers have limited cornering ability due to a lack of ground clearance. Choppers are

4368-439: The field current is often referred to as the "exciter" wire. The drawback of this arrangement is that if the warning lamp burns out or the "exciter" wire is disconnected, no current reaches the field windings and the alternator will not generate power. Some warning indicator circuits are equipped with a resistor in parallel with the lamp that permit excitation current to flow if the warning lamp burns out. The driver should check that

4446-476: The fuel tank. The rider leans forward into the wind, the force of which may support the rider's weight at high speeds. However, at lower speeds a rider may experience excessive weight on the arms and wrists, causing fatigue. Muscle bike is a nickname for a motorcycle type, derived from a sport bike design, that puts a disproportionately high priority on engine power. Streetfighters are derived from sport bikes, originally being customized sport bikes with

4524-492: The ground when they lean to negotiate curves. These include Honda's Gyro range, all of which have a front wheel that leans and a pair of rear wheels that do not, and the Piaggio MP3 , which has two front wheels and a single rear wheel, all of which lean. The Yamaha Niken is also a tilting three wheeler but has smaller track width such that it is considered a motorcycle by some authorities. Alternator (automotive) Until

4602-483: The highly successful but then limited future two stroke motorcycles. Given a design brief that the engine (in race configuration) should develop at least the same power as the two stroke TZ750 . The FZ750 would be the first motorcycle in what would become the Genesis concept where the advanced liquid-cooled multi-valve engine and perimeter type steel chassis would be designed to function together to provide enhanced power and handling. The Genesis concept would go on to form

4680-464: The late 1970s and early 1980s, but their popularity has fallen off sharply since the mid-1980s. In response to rising fuel prices in the first decade of the 2000s, U.S. scooter and moped ridership saw a resurgence. Sales of motorcycles and scooters declined 43.2% in 2009, and continued to decrease in the first quarter of 2010, with scooter sales doing worst, down 13.3% compared to a 4.6% drop for all two-wheelers. Other types of small motorcycles include

4758-426: The lights were now powered by the battery. However, the flywheel magneto still powered the ignition, and since models without the starter had no battery, they continued to use magneto-powered lights. Alternators have several advantages over direct-current generators ( dynamos ). Alternators are: A set of rectifiers ( diode bridge ) is required to convert AC to DC . To provide direct current with low ripple ,

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4836-518: The main categories within these classifications, but other classification schemes may also include these types of motorcycles. Nevertheless, there are strict classification systems enforced by competitive motorcycle sport sanctioning bodies, or legal definitions of a motorcycle established by certain legal jurisdictions for motorcycle registration , emissions , road traffic safety rules or motorcyclist licensing . There are also informal classifications or nicknames used by manufacturers, riders, and

4914-492: The market. Standard motorcycles (also called roadsters , or naked bikes ) are street motorcycles that conform to a stereotypical image of a motorcycle, with an exposed engine and fuel tank above it. Standard bikes typically have neither fairings nor windscreens as OEM attachments (hence the modern usage naked bikes ). With handlebars that are set neither high nor low, and footpegs placed neither forward nor "rear-set", standards give an upright rider posture (in-between

4992-698: The motorcycling media. Some experts do not recognize sub-types, like naked bike, that "purport to be classified" outside the usual classes, because they fit within one of the main types and are recognizable only by cosmetic changes. Street motorcycles are motorcycles designed for being ridden on paved roads. They have smooth tires with tread patterns and engines generally in the 125 cc (7.6 cu in) and over range. Typically, street motorcycles are capable of speeds up to 100 mph (160 km/h), and many of speeds in excess of 125 mph (201 km/h). Street motorcycles powered by electric motors are becoming more common, with firms like Harley-Davidson entering

5070-400: The non-stop endurance record which had been set by an Australian team nine years earlier. Ridden from 16 August to 8 September the FZ750 was always in motion even during refueling, tyre and the rider changes; which were conducted by a special vehicle that had been set up with special side brackets to hold the bike. The first record at a mileage of 10,000 kilometers was broken on 27 August beating

5148-457: The previous record comfortably, at more than double the previous average speed. A blown main fuse on 8 September put an end to the attempt to further the record after 560 hours and 30370km, at which point the FZ750 had run for continually for 23 days. Types of motorcycles#Sport bike In the market, there is a wide variety of types of motorcycles , each with unique characteristics and features. Models vary according to

5226-505: The radiator sides gave the bike a very distinct styling. Very early models had an older style removable filler cap, large square indicators and ventilated discs brakes. Machines were fitted with twin headlight unit where the local market allowed. Japanese home market (1FM) had adjustable damping telescopic forks. The later machines were fitted with an optional single seat hump (replacing the seat strap), aircraft-style filler cap, slimmer indicators, grab rail, Non ventilated discs and bellypan or

5304-405: The rim with a rim lock . Many competitive events have emerged and developed into a variety of off-road motorcycle sports , for which a number of specialized motorcycles have been built: Dual-purpose motorcycles , sometimes called dual-sport, on/off-road motorcycles, or adventure motorcycles, are street legal machines that are also designed to enter off-road situations. Typically based on

5382-424: The rotor to produce a multi-pole field from a single coil winding. The poles of the rotor look like fingers of two hands interlocked with each other. The coil is mounted axially inside this and field current is supplied by slip rings and carbon brushes. These alternators have their field and stator windings cooled by axial airflow, produced by an external fan attached to the drive belt pulley. Modern vehicles now use

5460-490: The semi-recumbent cruiser and the forward crouch of a sport bike). A standard's relationship between footpegs, handlebars and seat gives the rider a comfortable and natural posture. The comfort, ease of control, and safety of standard bikes means that beginner motorcyclists inevitably learn on standard motorcycles; and many experienced riders choose to continue riding this motorcycle type. Cruiser motorcycles (or simply cruisers ) are styled after American motorcycles from

5538-442: The sought after factory race kit and onto the later FZR750/1000 . Maximum power was somewhere in the region 95.6kW (130PS). An endurance race spec TT-F1 factory machine based on the FZ750 production sports model. The engine featured a modified forward inclination of the cylinders from 45° to 35° to accommodate the shortened wheelbase and the adoption of the ram air intake system. A specially designed aluminum Deltabox frame related to

5616-669: The specific needs of each user, such as standard , cruiser , touring , sports , off-road , dual-purpose , scooters , etc. Often, some types like sport touring are considered as an additional category or integrated with touring . There is no universal system for classifying all types of motorcycles. However, some authors argue that there are generally six categories recognized by most motorcycle manufacturers and organizations, making clear distinctions between these six main types and other motorcycles. For example, scooters, mopeds, underbones, minibikes, pocket bikes, electric bikes, and three-wheeled motorcycles are often excluded from

5694-435: The sport bike category, with V-twins and parallel twins having a significant presence; and most other engine configurations appear in small numbers at times. High-performance braking systems may use upgraded brake pads, multi-piston calipers and larger vented rotors. Sports bike suspension systems may be more sophisticated, with greater adjustments for compression and rebound. Sport bikes have fairings to completely enclose

5772-686: The voltage supplied by the alternator. Older automobiles with minimal lighting may have had an alternator capable of producing only 30 amperes . Typical passenger car and light truck alternators are rated around 50–70 A, though higher ratings are becoming more common, especially as there is more load on the vehicle's electrical system with air conditioning , electric power steering and other electrical systems. Very large alternators used on buses, heavy equipment or emergency vehicles may produce 300 A. Semi-trucks usually have alternators which output 140 A. Very large alternators may be water-cooled or oil-cooled. Efficiency of automotive alternators

5850-664: The war, other vehicles with high electrical demands — such as ambulances and radio taxis — could also be fitted with optional alternators. Alternators were first introduced as standard equipment on a production car by the Chrysler Corporation on the Valiant in 1960, several years ahead of Ford and General Motors . Some early automobiles, like the Ford Model T , used a different sort of charging system: an engine-driven magneto which generated low-voltage alternating current that

5928-498: The warning indicator is on when the engine is stopped; otherwise, there might not be any indication of a failure of the belt which may also drive the cooling water pump . Some alternators will self-excite when the engine reaches a certain speed. In recent years, alternator regulators are linked to the vehicle's computer system and various factors including air temperature obtained from the intake air temperature sensor, battery temperature sensor and engine load are evaluated in adjusting

6006-448: Was argued that for a given lift, the 3 inlet valves flowed more effectively than conventional twin inlet valves. What was indisputable was that their light weight allowed for faster opening speeds, and softer valve springs, all contributing to theoretical increases in engine speed and thus power outputs. Valve clearances are adjusted with under-lifter shims. The four 34 mm Mikuni constant-velocity downdraft carburettors are mounted in

6084-434: Was supplied to trembler coils , which provided the high voltage needed to generate ignition sparks. (This was different from a true ignition magneto , which generates high voltage directly.) Since such a magneto system only depended on the engine's motion to generate current, it could even be used when starting a manually cranked engine, provided the crank was pulled sharply, so that the magneto would produce enough current for

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