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Suzuki RG 400 Gamma - 1985 Specifications and Reviews

1985
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General information

CategorySport
Year1985
ModelSuzuki RG 400 Gamma

Engine and Transmission Specifications

Clutchwet 8-plate type
Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemSuzuki ´CCI´ Oil pump injection (carbs) + Wet sump (transmission/clutch)
StarterKick
Ignitionelectronic SUZUKI ´PEI´ 14deg B.T.D.C.below1700rpm 26deg B.T.D.C. (2700 - 6000rpm) 11deg B.T.D.C.above9500rpm; NGK : BR9ES; 12V 14.4KC (4Ah)/10HR; Three-phase AC.; 20A
Fuel controlRotary valves
Valves per cylinder1
Fuel systemCarburettor. Mikuni VM28SH (VM28SS), four (Flat Slide)
Bore x stroke50.0 x 50.6 mm (2.0 x 2.0 inches)
Compression7.0:1
Max RPM10000
Power59.00
Stroke2
Engine typeV4
Capacity:397.40 ccm (24.25 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,425 mm (56.1 inches)
Ground clearance120 mm (4.7 inches)
Overall width695 mm (27.4 inches)
Overall length2,100 mm (82.7 inches)
Overall height1,185 mm (46.7 inches)
Seat height770 mm (30.3 inches) If adjustable, lowest setting.
Rear percentage of weight51.0
Front percentage of weight49.0
Weight incl. oil, gas, etc181.0 kg (399.0 pounds)
Dry weight154.0 kg (339.5 pounds)
 
 

Suzuki RG 400 Gamma dimensions and frame

Exhaust system4in4 steel pipes with expansion chambers
Rear brakes diameter210 mm (8.3 inches)
Rear brakesSingle disc. 2-piston caliper
Front brakes diameter260 mm (10.2 inches)
Front brakesDouble disc. 4-piston calipers
Rear tyre dimensions2.75-17
Front tyre dimensions2.50-16
Rear suspension travel127 mm (5.0 inches)
Rear suspensionFull-floating suspension sytem, gas/oil damped, spring pre-load fully adjustable
Front suspension travel130 mm (5.1 inches)
Front suspension38mm Telescopic pneumatic/coil spring oil damped with posi-damp unit, adjustable anti dive valving. Spring pre-load fully adjustable
Trail110 mm (4.3 inches)
Rake (fork angle)25.5°
Frame typedouble downtube, full cradle, box section aluminium perimetre frame

Speed and acceleration

Power/weight ratio0.3831 HP/kg
1/4 mile (0.4 km)11.800 seconds
0-100 km/h (0-62 mph)4.900 seconds
Top speed205.0 km/h (127.4 mph)

Other specs

Modifications compared to previous modeldiffernces to the 500 model: cylinders; gaskets; cylinder heads; upper engine case is different, would be needed to drill out for a 500 barrel fittment; big end crankshaft needle bearing has one less pin than the 500; 2 different RVs and both different to the 500, different inner-outer covers and rotary valves themselves, only in the center match, same durations; shorter clutch basket; shorter clutch hub; 8 instead of 9 clutch plates; shape of the carb needle, #135 main jet instead of #120 (500); exhaust p
Color options85_Champion_Blue-Super_white (RG500Gamma same = 7GF), 85_Black-Super_white (RG500Gamma same = 7TV) 85_black-red-WW Walter Wolf
Fuel consumption pr. 10 km (6.2 miles)9.00 litres (2.38 gallons)
Reserve fuel capacity5.00 litres (1.32 gallons)
Fuel capacity22.00 litres (5.81 gallons)

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