1976 CZ 250 Specifications and Specs

Specifications and workshop reference information for the 1976 CZ 250, 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.

1976 CZ 250

General Specifications

Engine TypeSingle-cylinder, two-stroke, air-cooled
Displacement246 cc
Bore × Stroke70.0 × 64.0 mm
Compression Ratio6.5:1
Maximum Power~32 hp
Maximum Torque39.6 hp
CarburetorJikov 36 mm | Replacement Options
LubricationPremix
Fuel Mix Ratio25:1 | Premix Calculator
IgnitionMagneto
Spark PlugNGK B8ES
Spark Plug Gap0.5 – 0.6 mm

Transmission

Transmission Type4-speed constant mesh
ClutchWet multi-plate

Dimensions

Wheelbase1,430 mm
Fuel Tank Capacity9.0 L
Bearing Sizes Bearing Finder

Chassis

Frame TypeSteel single cradle
Front SuspensionTelescopic forks | Fork Oil Levels
Rear SuspensionTwin shock

Brakes & Wheels

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

250cc Other Specs

Community

VMX Owners Forum

Discuss vintage motocross bikes, restorations, tuning and riding.