1970 Yamaha RT1 360 Specifications and Specs

Specifications and workshop reference information for the 1970 Yamaha RT1 360, including engine, chassis, service data and setup details.

Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.

1970 Yamaha RT1 360

General Specifications

Engine TypeSingle-cylinder, two-stroke, air-cooled
Displacement351 cc
Bore × Stroke80.0 × 70.0 mm
Compression Ratio6.9:1
Maximum Power36 hp @ 7,000 rpm
Maximum Torque
CarburetorMikuni VM36SC | Replacement Options
LubricationAutolube oil injection
Fuel Mix RatioN/A (Oil Injection)
IgnitionFlywheel Magneto
Spark PlugNGK B8ES
Spark Plug Gap0.6 – 0.7 mm
Air FilterFoam

Transmission

Transmission Type5-speed constant mesh
ClutchWet multi-plate
Primary Reduction3.409
Final Reduction15T / 46T

Dimensions

Overall Length2,135 mm
Overall Width890 mm
Overall Height1,170 mm
Wheelbase1,405 mm
Ground Clearance250 mm
Fuel Tank Capacity9.5 L
Bearing Sizes Bearing Finder

Chassis

Frame TypeSteel tubular double cradle
Caster Angle28°
Front SuspensionTelescopic forks | Fork Oil Levels
Rear SuspensionDual rear shocks
Front Suspension Travel190 mm
Rear Suspension Travel100 mm

Brakes & Wheels

Front Tire3.00 – 21 | Tyre Size Guide
Rear Tire4.00 – 18 | Tyre Size Guide
Front BrakeDrum
Rear BrakeDrum

Service Data

Gearbox Oil Capacity1.2 L
Oil Tank Capacity1.4 L
Chain Type530
Starting SystemKick Start

360cc Other Specs

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