RT1M

70 RT1-M 2wn702q
Category: Motocross
Manufacturer: Yamaha
Hits: 722
Year 1970
Engine Class 360
VIN Prefix RT1
Known VIN Range (Vehicle ID Numbers) 50101--57218
Tank Color(s) Yamaha Black
Country of Sale USA
Bore (MM) 80
Stroke (MM) 70
Displacement (CC) 351
Compression Ratio (to 1) 7.5
BHP @ RPM 36 @ 6,500
Torque (kgm) @ RPM 3.96 @ 6,500
Autolube Injection? Yes
Engine Cooling Air
Carburetor Model VM34SH
Ignition Type Magneto
Ignition Timing MM (BTDC) 3.4
Primary Drive Gearing 3.1
Final Drive Gearing (Sprockets) 44/15
Box Gearing First 2.25
Box Gearing Second 1.65
Box Gearing Third 1.26
Box Gearing Fourth 1.0
Box Gearing Fifth 0.79
Fuel Capacity (L) 9.5
2 Stroke Oil Tank Capacity (L) 1.6
Gearbox Oil Capacity 1.0
Fork Oil Capacity (CC/Fork Leg) 210
Front Tire (stock) 2.75 X 21
Rear Tire (stock) 4.00 x 18
Front Brake Type Drum
Rear Brake Type Drum
Rear Suspension Twin Shock
Rake (degrees) 29.5
Trail (mm) 137
Overall Width (mm) 890
Ground Clearance (mm) 255
Wheelbase (mm) 1,400
Dry Weight (kg) 108
Voltage 6 Volt