Yamaha RD350R (1990-92)

The Yamaha RD350R (1990-92) is a two-stroke motorcycle with a parallel twin-cylinder YPVS engine, boasting a capacity of 347 cc and a compression ratio of 6.2:1. The bike is liquid-cooled and comes with autolube lubrication. Induction features two 26mm Mikuni slide-needle carburetors while ignition is ensured through a flywheel magneto CDI. Max power for the bike is 63 PS with 46.3 kW at 9000 rpm, while max torque comes in at 49.1 Nm with 5.0 kg-m at 9000 rpm. The bike uses a wet multiplate clutch with a six-speed transmission and chain final drive.

Front features of the bike include a 35mm telescopic fork with air assistance and variable damping with a front wheel travel of 140 mm. In the back, the RD350R has a rising rate Monocross 5-way preload with a rear wheel travel of 100 mm. The bike also comes with dual front brakes featuring 260mm discs and two-piston calipers, as well as a single 260mm disc with one piston caliper for the rear.

The Yamaha RD350R has a wheelbase of 1385 mm, a seat height of 790 mm, and ground clearance of 165 mm. The bike has a dry weight of 141 kg, a wet weight of 155 kg, and a fuel capacity of 17 liters.

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Technical specifications:

Make Model: Yamaha RD 350R

Year: 1990 – 92

Engine: Two stroke, parallel twin cylinder, YPVS

Capacity: 347 cc / 21.1 cu-in

Bore x Stroke: 64 54 mm

Cooling System: Liquid cooled

Compression Ratio: 6.2:1

Lubrication: Autolube

Induction: 2x 26mm Mikuni slide-needle carburetor

Ignition: Flywheel magneto CDI

Starting: Kick

Max Power: 63 PS / 46.3 kW @ 9000 rpm

Max Torque: 49.1 Nm / 5.0 kg-m @ 9000 rpm

Clutch: Wet multiplate

Transmission: 6 Speed

Final Drive: Chain

Front Suspension: 35mm Telescopic forks air assistance and variable damping

Front Wheel Travel: 140 mm / 5.5 in

Rear Suspension: Rising rate Monocross 5-way preload

Rear Wheel Travel: 100 mm / 3.9 in

Front Brakes: 2x 260mm disc 2 piston calipers

Rear Brakes: Single 260mm disc 1 piston caliper

Front Tyre: 90/90-18 51H

Rear Tyre: 110/80-18 58H

Wheelbase: 1385 mm / 54.5 in

Seat Height: 790 mm / 31.1 in

Ground Clearance: 165 mm / 6.4 in

Dry Weight: 141 kg / 310.8 lbs

Wet Weight: 155 kg / 341.7 lbs

Fuel Capacity: 17 Litres / 4.5 US gal