Suzuki GSX-R750 |
 | |
| Manufacturer | Suzuki |
|---|---|
| Also called | Gixer Gixxer |
| Production | since 1985 |
| Class | Supersport |
| Related | Suzuki GSX-R600 Suzuki GSX-R1000 |
The GSX-R750 is a sport bike from Suzuki's GSX-R series of motorcycles. It was introduced in 1985 and can be considered to be the first of the modern racer-replicas with many race-derived technologies and the looks of a Suzuki Endurance racer at an affordable price.
Contents[hide] |
[edit]Air and oil-cooled
The oil cooled models can be further divided into the first generation and second generation oil-cooled models. They are informally referred to as slabbies (slang) and slingshots respectively. The 85-87 models featured body work which is very flat compared to modern sport-bikes , hence slab-side. The '88-91 (92 USA) models are sometimes referred to as slingshots because the carburetors introduced in 1988 were marketed as slingshot carburetors (slingshot describes the cross section of the semi-flat slide carbs).
 | This section is in a list format that may be better presented using prose. You can help by converting this section to prose, if appropriate. Editing help is available. (September 2009) |
[edit]GSX-R750 (F) 1985
The original model featured a lightweight aluminum alloy frame, flatslide carbs, twin discs with 4-pot calipers and 18-inch (460 mm) tires both front and rear. The unusual choice of an oil-cooled engine was made to save weight as compared with the heavier water-cooled engines of the time.
Engine Type: 16-valve, 4-stroke, DOHC in-line four
Power: 106.00 HP (77.4 kW)) @ 10500 RPM
Torque: 53.8 ft. lbs. @ 10000 RPM
Displacement: 749cc (45.71 cubic inches)
Compression: 9.8:1
Bore x Stroke: 70.0mm x 48.7 mm (2.8in x 1.9in)
Fuel System: Carburetion
Ignition: Full transistor
Cooling System: Air-Cooled
Gearbox: 6-speed (1 down, 5 up)
Final Drive: Chain
Dry Weight: 388 lbs
Seat Height: 755 mm (29.7 in)
Overall Height: 1,200 mm (47.2 in)
Overall Length: 2,130 mm (83.9 in)
Overall Width: 620 mm (24.4 in)
Ground Clearance: 140 mm (5.5 in)
Wheelbase: 1,425 mm (56.1 in)
Front Tire: 110/80-18
Rear Tire: 140/70-18
Front Brakes: Hydraulic twin disc with dual opposed piston calipers
Rear Brakes: Single disc, hydraulic
Fuel Capacity:5.02 gallons
[edit]GSX-R750 (G) 1986
The 1986 received a 25 mm longer swing arm to help calm the handling. Apart from a modified belly pan and upgraded headlamps there is very little difference between the 1985 and 1986 models. This is the first year the model was introduced to the USA.
Engine Type: 16-valve, 4-stroke, DOHC in-line four
Power: 106.00 HP @ 10500 RPM
Torque: 53.8 ft. lbs. @ 10000 RPM
Displacement: 749.00cc (45.70 cubic inches)
Compression: 9.8:1
Bore x Stroke: 70.0 x 48.7 mm (2.8 x 1.9 inches)
Fuel System: Carburetion
Ignition: Full Transistor
Cooling System: Air/oil Cooled
Gearbox: 6-speed (1 down, 5 up)
Final Drive: Chain
Dry Weight: 388 pounds
Seat Height: 755 mm (29.7 in)
Overall Height: 1,200 mm (47.2 in)
Overall Length: 2,130 mm (83.9 in)
Overall Width: 620 mm (24.4 in)
Ground Clearance: 140 mm (5.5 in)
Wheelbase: 1,425 mm (56.1 in)
Front Tire: 110/80-18
Rear Tire: 140/70-18
Front Brakes: Hydraulic twin disc with dual opposed piston calipers
Rear Brakes: Single disc, hydraulic
Fuel Capacity:5.02 gallons
[edit]GSX-R750R 1986
Racing homologation Limited Edition model, limited production. Including a dry clutch system, solo seat rear section bodywork and Limited Edition graphics.
[edit]GSX-R750 (H) 1987
The 1987 model received upgraded 41 mm front forks with NEAS (New Electrically Activated Suspension) from the previous year's RR and a steering damper was fitted as standard. A larger 21 liter fuel tank was added.
Engine Type: 16-valve, 4-stroke, DOHC in-line four
Power: 106.00 HP @ 10500 RPM
Torque: 53.8 ft. lbs. @ 10000 RPM
Displacement: 749.00cc (45.70 cubic inches)
Compression: 9.8:1
Bore x Stroke: 70.0 x 48.7 mm (2.8 x 1.9 inches)
Fuel System: Carburetion
Ignition: Full Transistor
Cooling System: Air-Cooled
Gearbox: 6-speed (1 down, 5 up)
Final Drive: Chain
Dry Weight: 388 pounds
Seat Height: 755 mm (29.7 in)
Overall Height: 1,200 mm (47.2 in)
Overall Length: 2,130 mm (83.9 in)
Overall Width: 620 mm (24.4 in)
Ground Clearance: 140 mm (5.5 in)
Wheelbase: 1,425 mm (56.1 in)
Front Tire: 110/80-18
Rear Tire: 140/70-18
Front Brakes: Hydraulic twin disc with dual opposed piston calipers
Rear Brakes: Single disc, hydraulic
Fuel Capacity:5.54 gallons
[edit]GSX-R750 (J) 1988
First major revision. New chassis design, engine revisions and body work. Introduction of a new short-stroke version of the oil-cooled engine, now displacing 748 cc. Engine had 73 mm bore and 44.7 mm stoke and could achieve higher engine speeds (13,000 rpm redline indicated, but rev limited engaged at 12,500 according to the Suzuki shop manual). Internal engine dimensions changed to accommodate the new bore and stroke. This engine used larger valves and carburetors then previous years. Mikuni model BST36SS carbs were 36 mm diameter and featured vacuum operated slides. The slide cross section resembled the shape of a slingshot. A larger clutch was used on the short stroke engine with 6 springs. New styling, and twin black silencers (aka mufflers). Wheels were now a 17-inch (430 mm) diameter, three spoke design and used a 160/60VR17 in the rear and 120/70VR17 in the front. Slingshot graphic first appeared on the bodywork. Forks now used a cartridge design and were 43 mm in diameter. The second generation model was heaver than the first but had a stiffer frame and more power.
Engine Type: 16-valve, 4-stroke, DOHC in-line four
Power: 112.00 HP (81.8 kW)) @ 11000 RPM
Torque: 54.9 ft. lbs. @ 10000 RPM
Displacement: 748cc (45.64 cubic inches)
Compression: 10.9:1
Bore x Stroke: 73.0 x 44.7 mm (2.9 x 1.8 inches)
Fuel System: Carburetion
Ignition: Digital/Transistorized
Cooling System: Air-Cooled
Gearbox: 6-speed (1 down, 5 up)
Final Drive: Chain
Dry Weight: 429.9 pounds
Seat Height: 830mm (32.7 in.)
Overall Height: 1135mm (44.7 in.)
Overall Length: 2055mm (80.9 in.)
Overall Width: 720mm (28.3 in.)
Ground Clearance: 130mm (5.1 in.)
Wheelbase: 1400mm (55.1 in.)
Front Tire: 120/70 VR-17
Rear Tire: 160/60 VR-17
Front Brakes: 320mm dual hydraulic disc
Rear Brakes: 220mm single hydraulic disc
Fuel Capacity: 5.54 gallons
[edit]GSX-R750 (K) 1989
Widely considered the best of all gsxr models this cycle can achieve insane performance with very few modifications such as pod filters and 4 to one exhaust. Minor changes such as: modified lower bodywork, changes to graphics and silver exhaust silencers. Magazines reported that the exhaust manifold now featured small chamfers on the collector for increased ground clearance. Cycle magazines also reported a change to the rear shock mounting geometry and front fork length to improve ground clearance. Graphics/paint schemes varied slightly between global markets. US models were available in blue/white and red/white schemes. The SACS acronym decal, located on the lower body work of the blue/white models, changed from a diagonal lettering to a straight lettering. If you own one of these hold on to it.
[edit]GSX-R750R 1989
Limited edition racing homologation model. The redesigned engine reverted to the original long stroke (70 x 48.7mm) configuration. The crankcase, crankshaft connecting rods and clutch were upgraded to serve as a ready to race platform. The RR also received new 40 mm Slingshot carbs and 4-into-1 exhaust pipe, close ratio gearbox, braced rear swing arm , single seat unit and 19L aluminium fuel tank. Model was never sold in the US.
[edit]GSX-R750 (L) 1990
Although this model looks very similar to the previous '89 model many changes were made. The 90 model featured changes to the engine, suspension, body work, brakes and chassis. This was the first GSX-R to be fitted with inverted forks as standard (USA models retained the conventional forks until 1991), and returned to the bore and stroke dimension of the original long-stroke engine.
The engine returned to the 749 cc engine bore and stroke dimensions of the original long-stroke engine but still maintained the 13,000 rpm redline. It now featured mm valve (smaller than the 88-89 short stroke but larger than the 85-87) and used larger carburetors. The new Mikuni model BST38SS carburetors were 38 mm diameter and featured an additional high-speed circuit (circuit was blocked in USA models) and the slide breathers were now divorced from air box. The exhaust system was also changed, gone were the dual silencers and replaced with one stainless steel silencer on the right side. The transmission output shaft was lengthened to accommodate a wider wheel. A new curved oil-cooler design and oil lines (attached to the oil pan similar to the original 85-87 engines) were installed.
The frame was changed for 90 and used some of the features from the '89 GSX-R 1100 frame. The rake was now 25.5 degrees and wheel base 55.7 inches (1,410 mm). The front suspension now had inverted forks, the triple clamps (yokes) and handlebars were changed to accommodate the new forks. The rear suspension featured a new damper (shock) and swingarm. The rear damper (shock) now had a remote reservoir and damping adjustment. The revised swingarm now featured cast ends for the axle adjustment. The rear wheel was widened to 5.5 inches (previously 4.5inches) but the tire size remained the same. A non-adjustable steering damper was added which attached from the left frame rail to a clamp on the left fork (US models did not receive the damper but the frame had the tapped mounting holes). The rear sprocket carrier and sprocket changed to a six-bolt design (previously five). The front brake rotors changed to a slotted design (previously cross drilled holes).
The body work changed slightly also. The side vents became less rectangular and in a slightly different position. Anew fender was also used with the inverted forks (except US).
[edit]GSX-R750 (M) 1991
The '91 GSX-R750M gained 15 kg over the previous model. The most notable feature of the "M" are the faired in headlamps and a slanted nose, both of which were designed to reduce drag. Also fitted was a new larger seat and new rear body work that featured twin tail lamps. This was the last GSX-R to use the oil-cooled SACS engine (except for US). Internal engine changes included a new valvetrain that used one dedicated cam lobe and rocker arm (finger follower) per valve (previous models used one lobe and one forked rocker per two valves). Valve clearance (lash) was now adjusted with shims (previous models used a screw and nut). The cam duration and indexing changed slightly as well as the porting according to a magazine article. The rear tire width was increased to a 170 mm section width. The gauges also changed to white colored needles (previously amber colored).
[edit]GSX-R750 (N) 1992
1992 US models are the same as the 1991 with different paint and graphics. All other markets got the new water-cooled GSX-R 750.
[edit]Water-cooled
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[edit]GSX-R750 (WN) 1992
New water cooled engine and revised frame, bodywork and suspension. USA market models retained the oil-cooled engine and the USA 1992 model is basically the same as the 91 model with different graphics. A sleeved down version was available as the GSXR-600 for 92 and 93, both years were available with non inverted, traditional forks. Interestingly, the 1992 GSXR-600 was water cooled for the US market while the 750 had to wait one more year.
[edit]GSX-R750 (WP) 1993
Mostly cosmetic changes, minor revision of engine internals, minor increase in power.
[edit]GSX-R750 (WR) 1994
Reduced power and weight on last years model. The inverted forks for this year were blue annodized.
[edit]GSX-R750 SPR 1994-1995
A limited-edition racing homologation model and was available for two years. Factory parts included wide-mouthed TRM40 carbs, close-ratio gearbox, magnesium engine covers, ally water pump, six-piston brake calipers and a new braced swingarm, holding a wider 180-rear-section tyre. The SPR was also around 10 kilos lighter than the WP.
[edit]GSX-R750 (WS) 1995
Last model to use the double-cradle frame. Increased power and weight and over last years model. The US model was essentially the SPR model in terms of technical specs. Inverted forks were clear annodized for 95. Frame was reinforced for more stiffness over the 94 model year and the top fairing was all new with lighter, twin reflector beam headlights. Touted by Motorcyclist as having the most ground clearance leaned over, just behind a 916.
[edit]SRAD
| This section is in a list format that may be better presented using prose. You can help by converting this section to prose, if appropriate. Editing help is available. (July 2009) |
Suzuki Ram Air Direct.
Meaning there are air intakes at the front that force air directly into the airbox. All models as of 1996 have employed this design.
[edit]GSX-R750 (T) 1996
The '96 GSX-R introduced a new twin-spar frame which was derived from Suzuki's RGV 500 GP racer. A new compact and lightweight engine incorporated magnesium covers on the cylinder head, starter motor and clutch cover to aid weight reduction. These changes resulted in a decrease in weight by 20 kg to 179 kg, while power had increased to a 128 bhp (95 kW). This year's model finally addressed the weight problems that had plagued the GSX-R though the first half of the 90s.
Other features included electronically controlled carburetors and 43 mm inverted forks which were fully adjustable. Also 6in rear rim was fitted as std with a 190/50-17 size tyre as fitted to all model from 1996 to 1999.
[edit]GSX-R750 (V) 1997
Minor internal tweaks on the 1996 model, improved aerodynamics.
[edit]GSX-R750 (W) 1998
Introduction of electronic fuel injection. Gain in power to 134bhp.
[edit]GSX-R750 (X) 1999
Only minor modifications were carried out on the 1999 model consisting of a half inch wider rear wheel and new graphics. The 1999 Model year GSX-R won the sportbike of the year award, produced 134 Crank Horsepower, and was the last year of the known "SRAD" design.
[edit]GSX-R750 Y - 2000
All New Model covering 2000 through 2003 -Lighter Stronger Faster:
Engine: Much Smaller Yet Stronger motor Upgraded Fuel Injection Redesigned -Narrower cylinder head With straighter intake tracts Bigger Air Box, Better Ram Air Stainless Steel 4-1 exhaust Lighter Stronger Engine Components and covers Increased Cooling capacity
Body: More aerodynamic bodywork, smaller frontal area Redesigned instrument cluster New LCD Views: odometer, coolant temperature, clock
Frame: New re-designed twin spar frame Extended swingarm Lighter front brakes reduce un-sprung mass Lighter Cast Wheels reduce the all important rotating mass
[edit]GSX-R750 K1 - 2001
Color changes only.
[edit]GSX-R750 K2 - 2002
Few minor tweaks for 2002: changes to the EFI New Adjustable Swingarm New Mirrors, New fully brushed exhaust
[edit]GSX-R750 K3 - 2003
Colors changed. First year that bikes have lights on 24 hrs (UK). Redesign year (Not UK).
[edit]GSX-R750 K4 - 2004
Refinded version of the 2000-03 model years. ECU increased in size, titanium valves, new body work, minor changes to the frame, radial brakes. An extremely good track bike.
749.00 cc (45.70 cubic inches) Dual overhead cam, 4 valves per cylinder In-line 4.
| Compression: | 12.3:1 |
| Bore x stroke: | 72.0 x 46.0 mm (2.8 x 1.8 inches) |
| Fuel delivery: | Electronic Injection |
| Cooling system: | Liquid |
| Power: | 127.3 bhp (94.9 kW) at 12,750 rpm (rear wheel)[1] |
| Torque: | 63.7 ft.lb (86.3 Nm) @ 10800 rpm. |
| Gearbox: | 6-speed |
| final drive: | Adjustable (Chain) |
| Dry weight: | 163.0 kg (359.4 pounds) |
| Seat height: | 825 mm (32.5 inches) If adjustable, lowest setting. |
| Wheelbase: | 1,396 mm (55.0 inches) |
| Overall length: | 2,075 mm (81.7 inches) |
| Fuel capacity: | 17.00 litres (4.49 gallons) |
| Front suspension: | Inverted telescopic, coil spring, fully adjustable spring preload, rebound and compression damping |
| Rear suspension: | Link-type, gas/oil damped, fully adjustable spring preload, compression and rebound damping |
| Front tire dimensions: | 120/70-ZR17 |
| Rear tire dimensions: | 180/55-ZR17 |
| Front brakes: | Double disc |
| Rear brakes: | Single disc |
| Color options: | Blue/White, Yellow/Gray, Silver/Red/Black |
[edit]GSX-R750 K5 - 2005
Same as 2004. Color change only.
[edit]GSX-R750 - 2006
Redesign year. New frame and swingarm and motor. Stroke increased and transmission is now stacked.
[edit]GSX-R750 K9 - 2009
new model - revised headlights, new colors, multi-mode power adjustments
| Engine: | 750cc four-cylinder |
| Power: | 128 bhp (95 kW) at 13,200 rpm (rear wheel)[2] |
| Torque: | 56 ft.lb @ 11,200 rpm. |
| Transmission: | six-speed chain drive |
| Weight: | 167 kg |
| Seat height: | 810 mm |
| Fuel capacity: | 17.00 litres (4.49 gallons) |
[edit]References
- ^ "2004 Suzuki GSX-R750 Motorcycle Test", Motorcyclist Online
- ^ "Ridden Suzuki GSX-R750", MSN
 | This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. Please improve this article by introducing more precise citations where appropriate. (December 2008) |
[edit]External links
- GSX-R History Official site (global)
- GSX-R history Official site (UK)
- Suzuki GSX-R at the Open Directory Project
- Suzuki GSX-R750 Reviews Road tests of every GSX-R750 since 1996
 | This Motorcycle racing-related article is a stub. You can help Wikipedia by expanding it. |
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