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Yamaha RD350B (1974) Engine: two-stroke air-cooled twin cylinder, reed valve induction, Autolube oil injection, six-speed gearbox Displacement: 347cc Bore x stroke: 64 x 54mm Carburation: two Mikuni VM series 28mm carburettors Compression ratio: 6.2:1 Max bhp: 39 @ 7500rpm Max torque: 3.8kgm @ 7000rpm Ignition system: points, battery and coil Dry weight: 163kg net Tyres: 3.00-18 front, 3.50-18 rear Performance: 103mph
Yamaha RD200 Engine: 195cc Bore x stroke: 52 x 46mm Carburettors: two 20mm Keihins Top speed: approx 85 mph Wheelbase: 49.5 inches Seat height: 30.5 inches (disc model 32 inches) Kerb weight: 288lbs with one gallon fuel (270 lbs for wire-wheeled model) Fuel capacity: three gallons (two gallons)
Yamaha RD400 Displacement: 398cc Configuration: air-cooled two-stroke twin with reed valve induction Bore x stroke: 64.0 x 62.0mm Compression ratio: 6.2:1 Max bhp: 40hp @ 7000rpm Max torque: 4.2kg-m @ 6500rpm Carburettors: 2x 28mm Mikuni Weight: 165kg (wet) Tyres: 3.25 x 18 (F) 3.50 x18 (R) Brakes: 296mm disc( F&R) Wheelbase: 1344mm (52.9in)
Yamaha RD350LC Engine: liquid-cooled two-stroke parallel twin Capacity: 347cc (64 x 54mm) Valve operation: piston ports; reed inlet valves Compression ratio: 6.9 to 1 (from exhaust port closure) Lubrication: injection pump Ignition: capacitor discharge Carburation: two 26mm Mikuni carburettors Peak power: 47bhp at 8500rpm Peak torque: 28.8ft-lb at 8000rpm Primary drive: helical gears Primary ratio: 2.87 to 1 (66/23) Clutch: wet multiplate Gearbox: six speed Frame: tubular steel duplex cradle Front suspension: telescopic fork, 32mm stanchions Rear suspension: triangulated swingarm with single spring-damper 5-pos spring preload adjustable Wheels: cast light alloy, seven spoke Front tyre: Yokohama 3.00-S18 Rear tyre: Yokohama 3.50-S18 Front brake: twin 265mm hydraulic discs, floating caliper Rear brake: 180mm drum Fuel tank: 16.8 litres (3.7 gallons) Wheelbase: 1360mm (53.5in) Seat height: 785mm (30.9in) Weight: 143kg (315lb) dry