1976 CZ 400 Specifications and Specs

Specifications and workshop reference information for the 1976 CZ 400, 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 400

General Specifications

Engine TypeSingle-cylinder, two-stroke, air-cooled
Displacement380–400 cc
Bore × Stroke82.0 × 75.0 mm
Compression Ratio6.5:1
Maximum Power~40 hp
Maximum Torque36.2 ft-lb (about 49 Nm)
CarburetorJikov 38 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
Front Suspension Travel170 mm (6.7 inches)
Rear Suspension Travel90 mm (3.5 inches)

Brakes & Wheels

Front Tire3.00 – 21 | Tyre Size Guide
Rear Tire4.50 – 18 | Tyre Size Guide
Front BrakeDrum
Rear BrakeDrum

400cc Other Specs

Community

VMX Owners Forum

Discuss vintage motocross bikes, restorations, tuning and riding.