Suzuki GSX-R750 1989 brought about minor changes such as: Modified lower bodywork, changes to graphics and silver exhaust silencers, the exhaust manifold now featured small chamfers on the collector for increased ground clearance, change to the rear shock mounting geometry and front fork length to improve ground clearance.
Gear ratio revisions in 3rd, 4th and 5th gears offered improved power control and secondary gear ratio was lowered, together with 5mm increase in the wheelbase, all combining for better sports riding on highways.
The brake master cylinder controlled the 4 piston brake calipers featured four-way adjustability.
The SACS acronym decal, located on the lower body work of the blue/white models, changed from a diagonal lettering to a straight lettering.
The height of the ground had improved with the Suzuki GSX-R750 1989 and overall it was a little more developed, but otherwise exactly like the previous model Suzuki GSX-R750 1988.
Leaks 4-in-2 that occurred the previous year, received a polished stainless steel highlighting the previous model that was completely black.
An exquisite and expensive limited edition Suzuki GSX-R750 RK 1989 was released to the Japanese market with a return to long-stroke engine of the F/G/H models.
Limited edition (only 500 to 1000 made) racing 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, new aerodynamic fiber with large air intake duct, 120 horsepower and 4-into-1 exhaust pipe, close ratio gearbox, braced rear swing arm, single seat unit, 19L aluminium fuel tank and weighted in at 411lb / 187kg. Not sold in the US.
Suzuki GSX-R750 1989 SPECIFICATIONS
Suzuki year code
1989: K
Colours
Pearl Cool White / Marble Parsec Blue (9SR)
Pearl Cool White / Pearl Twinkle Red (7JJ)
Pearl Novelty Black / Urban Gray Metallic (3CG)
Suzuki GSX-R 750 RK 1989 Color
Marble Parsec Blue / Pearl Still White (3JK)
Dimensions and curb weight
Overall length: 2,055 mm (80.9 in)
Overall width: 730 mm (28.7 in)
Overall height: 1,100 mm (43.3 in)
Wheelbase: 1,400 mm (55.1 in)
Ground clearance: 130 mm (5.1 in)
Empty weight: 195 kg (429 lbs)
Engine
Engine Type: 4 stroke, oil cooling, DOHC
Number of cylinders: 4 cylinders
Calibre: 70.0 mm (2.756 in)
Stroke: 48.7 mm (1.917 in)
Displacement: 749 cc (45.7 cu in.)
Carburetor: MIKUNI BST38SS
Air filter: Paper element
Starting system: Electric
Lubrication system: Wet Carter
Drivetrain
Clutch: Wet, multiplate oil
Transmission: 6-speed constant Gear
Gearshift pattern: 1 reduction, 5x
Primary reduction ratio: 1.744 (75/43)
Gear Ratio:
First: 2,866 (43/15)
2nd: 2,058 (35/17)
3rd: 1,650 (33/20)
4th: 1,428 (30/21)
5th: 1,260 (29/23)
High: 1,120 (28/25)
Final reduction ratio: 2.800 (42/15)
Drive chain: RK TAKASAGO 50GSVZ1 or DAIDO DID 50VA7, 108 links
Chassis
Front suspension: Telescopic, coil springs, adjustable preload, damping oil 10 compression settings and 8 rebound damping adjustments.
Rear suspension: articulated type, coil springs, damping oil / gas, adjustable preload, 4-way, Suzuki “Full Floater” system.
Fork travel: 120 mm (4.7 in)
Rear wheel travel: 136 mm (5.35 in)
Steering angle: 30 °
Caster angle: 65º 30 ‘
Filmed: 94 mm (3.7 in)
Turning radius: 3.1 m (10.2 ft)
Front brakes: Double disc brake
Rear brake: single disc brake
Front Tire Size: 120/70 ZR 17, tubeless
Rear Tire Size: 160/60 ZR 17, tubeless
Electrical Equipment
Ignition Type: Electronic ignition (Transistorized)
Ignition timing: 7th BTDC at 1500 rpm
Spark plug: NGK CR10EK
Battery: 12 V 36.0 kC (10 Ah) / 10 HR
Generator: Three-phase AC generator
Main fuse: 30A
Fuse: 15/15/15/10/10 A
Headlight: 12 V 60 / 55W x 2
Flashing light 12 V 21 W
Light: 12 V 5 W
Brake / Rear: 12 W x 2 5/21 V
Speedometer Light: 12V 1.7W
Light Tachometer: 12V 1.7W x 2
Neutral indicator light: 14V 3W
Indicator light beam: 14V 3W
Indicator light turn signal: 14V 3W
Oil pressure indicator light: 14V 3W
Capabilities
Fuel tank, including reserve: 21 l (5.5 US / Imp gal)
Engine oil:
oil change: 3,000 ml (3.2 / 2.6 US / Imp qt)
with filter change: 3.300 ml (3.5 / 2.9 US / Imp qt)
Repair: 3.900 ml (4.1 / 3.4 US / Imp qt)
Fork oil 419 ml (14.2 / 14.8 US / Imp oz)
Refrigerant: 2,550 ml (2.7 / 2.2 US / Imp qt)
IMAGE GALLERY Suzuki GSX-R750 1989
