Suzuki GSX-R 400R-SP

Suzuki GSX-R 400R-SP
Manufacturer	Suzuki
Production	1989 - 90
Class	Sportbike
Engine	Four stroke, transverse four cylinder, DOHC 4 valves per cylinder. TSCC
Compression ratio	11.8:1
Ignition	CDI
Transmission	6 Speed, constant mesh
Frame	Aluminum angular pipe double cradle
Suspension	Front: Telescopic forks Rear: Full floater swing arm, non-adjustable
Brakes	Front: 2 x Discs, 4 piston calipers Rear: Single disc, 2 piston caliper
Front Tire	110/70-R17 53H
Rear Tire	140/60-R18 64H
Wheelbase	1375 mm / 54.1 in
Seat Height	735 mm / 28.9 in
Weight	160 kg / 352 lbs (dry),
Recommended Oil	Suzuki ECSTAR 10w40
Fuel Capacity	15 Liters / 3.96 US gal / 3.3 Imp gal
Manuals	Service Manual

Engine

The engine was a Liquid cooled cooled Four stroke, transverse four cylinder, DOHC 4 valves per cylinder. TSCC. The engine featured a 11.8:1 compression ratio.

Drive

Power was moderated via the Wet multi-plate.

Chassis

It came with a 110/70-R17 53H front tire and a 140/60-R18 64H rear tire. Stopping was achieved via 2 x Discs, 4 piston calipers in the front and a Single disc, 2 piston caliper in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Full floater swing arm, non-adjustable. The GSX-R 400R-SP was fitted with a 15 Liters / 3.96 US gal / 3.3 Imp gal fuel tank. The bike weighed just 160 kg / 352 lbs. The wheelbase was 1375 mm / 54.1 in long.

Photos

Overview

Suzuki GSX-R 400R-SP

In 1989 an extra ”R” was added to the model name. The new model name was GSX-R400R although the internal model code (frame code) remained the same.

A Production Racer version, GSX-R400R SP, was released in June 1989 with single seat, close ratio gear box, uprated suspension and different CDI.

Make Model	Suzuki GSX-R 400R SP
Year	1989 - 90
Engine Type	Four stroke, transverse four cylinder, DOHC 4 valves per cylinder. TSCC
Displacement	398 cc / 24.3 cu-in
Bore X Stroke	56 x 40.4 mm
Lubrication	Wet sump
Cooling System	Liquid cooled
Compression	11.8:1
Induction	Slingshot carburetors
Ignition	CDI
Headlight	12V 35/35w x 2
Starting	Electric
Max Power	44 kW / 59 hp @ 11000 rpm
Max Torque	39.2 Nm / 4.0 kgf-m / 28.9 lb-ft @ 9000 rpm
Clutch	Wet multi-plate
Transmission	6 Speed, constant mesh
Final Drive	Chain
Primary Reduction Ratio	2.212
Final Drive Ratio	3.066
Gear Ratio	1st 3.166 / 2nd 2.125 / 3rd 1.631 / 4th 1.333 / 5th .173 / 6th 1.083
Frame	Aluminum angular pipe double cradle
Front Suspension	Telescopic forks
Rear Suspension	Full floater swing arm, non-adjustable
Front Brakes	2 x Discs, 4 piston calipers
Rear Brakes	Single disc, 2 piston caliper
Front Tire	110/70-R17 53H
Rear Tire	140/60-R18 64H
Rake	27° 25'
Trail	96 mm / 3.7 in
Dimensions	Length 1995 mm / 78.5 in Width 695 mm / 27.4 in Height 1110 mm / 43.7 in
Wheelbase	1375 mm / 54.1 in
Ground Clearance	125 mm / 4.9 in
Seat Height	735 mm / 28.9 in
Dry Weight	160 kg / 352 lbs
Fuel Capacity	15 Liters / 3.96 US gal / 3.3 Imp gal