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.

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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