1979 Suzuki RM250N Specifications and Specs

Specifications and workshop reference information for the 1979 Suzuki RM250N, 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.

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1979 Suzuki RM250
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General Specifications

Engine TypeTwo-stroke, water-cooled, single-cylinder
Displacement249 cc
Bore × Stroke67.0 × 70.8 mm
Compression Ratio9.1:1
Maximum Power~36 hp
Maximum Torque~30 Nm
CarburetorMikuni VM38SS | Replacement Options
LubricationPremix
Fuel Mix Ratio20:1 | Premix Calculator
IgnitionSuzuki PEI (CDI)
Spark PlugNGK B8EGV
Spark Plug Gap0.5 - 0.8 mm

Transmission

Transmission Type5-speed constant mesh
ClutchWet multi-plate
Primary Reduction2.652
Final Reduction3.769
Overall Reduction9.99

Dimensions

Overall Length2170 mm
Overall Width815 mm
Overall Height1250 mm
Wheelbase1470 mm
Ground Clearance360 mm
Fuel Tank Capacity8.5 L
Bearing Sizes Bearing Finder

Chassis

Frame TypeSteel cradle
Caster Angle62°80'
Trail113 mm
Front SuspensionTelescopic, adjustable | Fork Oil Levels
Rear SuspensionFull floater, adjustable
Front Suspension Travel310 mm
Rear Suspension Travel324 mm

Brakes & Wheels

Front Tire80/100-21 | Tyre Size Guide
Rear Tire110/100-18 | Tyre Size Guide
Front BrakeDisc
Rear BrakeDisc

250cc Other Specs

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