Suzuki RG 400 Gamma - 1985 Specifications and Reviews

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General information

Model:Suzuki RG 400 Gamma

Engine and Transmission Specifications

Clutch:wet 8-plate type
Transmission typefinal drive:Chain
Cooling system:Liquid
Lubrication system:Suzuki ´CCI´ Oil pump injection (carbs) + Wet sump (transmission/clutch)
Ignition:electronic 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 control:Rotary valves
Valves per cylinder:1
Fuel system:Carburettor. Mikuni VM28SH (VM28SS), four (Flat Slide)
Bore x stroke:50.0 x 50.6 mm (2.0 x 2.0 inches)
Max RPM:10000
Engine type:V4
Capacity:397.40 ccm (24.25 cubic inches)

Physical measures and capacities

Wheelbase:1,425 mm (56.1 inches)
Ground clearance:120 mm (4.7 inches)
Overall width:695 mm (27.4 inches)
Overall length:2,100 mm (82.7 inches)
Overall height:1,185 mm (46.7 inches)
Seat height:770 mm (30.3 inches) If adjustable, lowest setting.
Rear percentage of weight:51.0
Front percentage of weight:49.0
Weight incl. oil, gas, etc:181.0 kg (399.0 pounds)
Dry weight:154.0 kg (339.5 pounds)

Suzuki RG 400 Gamma dimensions and frame

Exhaust system:4in4 steel pipes with expansion chambers
Rear brakes diameter:210 mm (8.3 inches)
Rear brakes:Single disc. 2-piston caliper
Front brakes diameter:260 mm (10.2 inches)
Front brakes:Double disc. 4-piston calipers
Rear tyre dimensions:2.75-17
Front tyre dimensions:2.50-16
Rear suspension travel:127 mm (5.0 inches)
Rear suspension:Full-floating suspension sytem, gas/oil damped, spring pre-load fully adjustable
Front suspension travel:130 mm (5.1 inches)
Front suspension:38mm Telescopic pneumatic/coil spring oil damped with posi-damp unit, adjustable anti dive valving. Spring pre-load fully adjustable
Trail:110 mm (4.3 inches)
Rake (fork angle):25.5°
Frame type:double downtube, full cradle, box section aluminium perimetre frame

Speed and acceleration

Power/weight ratio:0.3831 HP/kg
1/4 mile (0.4 km):11.800 seconds
0-100 km/h (0-62 mph):4.900 seconds
Top speed:205.0 km/h (127.4 mph)

Other specs

Modifications compared to previous model:differnces 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 options:85_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 capacity:5.00 litres (1.32 gallons)
Fuel capacity:22.00 litres (5.81 gallons)

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