Yamaha YR3C (1969-70)

The Yamaha YR3C is a vintage motorcycle model from 1969-70. It has a two-stroke, parallel twin engine with a capacity of 347cc, and a compression ratio of 7.5:1. The bike is air-cooled and has carburetor induction and kick starting. It can produce a maximum power output of 36.5 PS at 7500 rpm and max torque of 3.3 kg-m or 23.9 ft-lb at 7000 rpm. The transmission is a 5-speed with final drive via chain. The front and rear suspensions are of standard drum-type and the front and rear tyre sizes are 3.00-18 and 3.50-18 respectively. The dimensions of the bike include a length of 2040mm, width of 735mm, and height of 1005mm, with a wheelbase of 1340mm and ground clearance of 145mm. The bike weighs 157kg and can hold up to 15 liters of fuel.

Technical specifications:

Make Model: Yamaha YR3C

Year: 1969-70
Engine: Two stroke, parallel twin
Capacity: 347 cc /
Bore x Stroke: 61 59.6 mm
Compression Ratio: 7.5:1
Cooling System: Air cooled
Induction: Carburetor
Ignition:
Starting: Kick
Max Power: 36.5 PS @ 7500 rpm
Max Torque: 3.3 kg-m / 23.9 ft-lb @ 7000 rpm
Transmission: 5 Speed
Final Drive: Chain
Front Suspension:
Rear Suspension:
Front Brakes: Drum
Rear Brakes: Drum
Front Tyre: 3.00-18
Rear Tyre: 3.50-18
Dimensions: Length: 2040 mm / 80.3 in Width: 735 mm / 28.9 in Height: 1005 mm / 39.5 in
Wheelbase: 1340 mm / 52.7 in
Ground Clearance: 145 mm / 5.7 in
Weight: 157 kg / 346 lbs
Fuel Capacity: 15 Litres / 4.0 gal