1979 Honda XL250 Specifications and Specs

Specifications and workshop reference information for the 1979 Honda XL250, 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.

1979 Honda XL250

General Specifications

Engine TypeAir-cooled, 4-stroke, single-cylinder, SOHC, 2-valve
Displacement248 cc
Bore × Stroke74.0 × 57.8 mm
Compression Ratio9.0:1
Maximum PowerApprox. 20 hp
Maximum Torque
CarburetorKeihin | Replacement Options
LubricationWet sump
Fuel Mix Ratio
IgnitionCDI
Spark PlugNGK D8EA
Spark Plug Gap0.6–0.7 mm
Valve Clearance (Intake)0.05 mm
Valve Clearance (Exhaust)0.05 mm

Transmission

Transmission Type6-speed manual
ClutchWet multi-plate
Final ReductionChain drive

Dimensions

Overall Length2,150 mm
Overall Width880 mm
Overall Height1,170 mm
Wheelbase1,390 mm
Ground Clearance280 mm
Fuel Tank Capacity9.5 L
Bearing Sizes Bearing Finder

Chassis

Frame TypeSteel single cradle
Front SuspensionTelescopic forks | Fork Oil Levels
Rear SuspensionDual shock swingarm
Front Suspension Travel
Rear Suspension Travel

Brakes & Wheels

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

250cc Other Specs

Community

VMX Owners Forum

Discuss vintage motocross bikes, restorations, tuning and riding.