About the Kawasaki KH400A
Engine resealing and front-brake restoration for the KH400A.
On a KH400A restoration, the condition of the surviving components matters as much as the model identification. Record the carburetors and front master cylinder before dismantling them, and note replacements from earlier repairs. The parts below cover engine joints, float valves and front-brake components that can be inspected and ordered as separate jobs.
Rebuild the front brake as an identified assembly
Check the front master cylinder, hose, caliper and disc together before choosing the repair parts. New pads cannot remedy a damaged hydraulic component, and a master-cylinder kit must match the installed bore and piston. At the carburetors, inspect the float-valve seating and fuel passages before deciding whether new sealing pieces will address the fault.
Know your KH400A before choosing partsKH400A repair checkpoints
Use the checkpoints below to prepare the parts list for your repair.
1976–1978 applications
Read each product independently
The featured parts list KH400A 1976–1978. That shared period helps organize the order, but dimensions, contents and brake position still need to match the repair.
Hydraulic overhaul
Pads and master-cylinder internals
Front pads and the master-cylinder repair kit address different components. Inspect the cylinder bore and caliper condition before deciding what can be serviced or needs replacement.
Engine work
Define the teardown first
For an engine reseal, make a list of opened joints and required seals before choosing a gasket set. Keep fuel-system and ignition work as separate checks in the recommissioning plan.
Identify your motorcycle before orderingKH400A identification checklist
Record the motorcycle’s identification and check for replacement assemblies before choosing service parts.
- Record the KH400A model identification, model year, frame markings and engine markings for the restoration file.
- Photograph the front master cylinder and caliper, including any bore or casting marks, before selecting internal repair parts.
- Check carburetor identification and record the condition of fuel connections, float valves and oil-supply components.
Contact PartsNMore with the model year, frame and engine markings and clear photos of the component being repaired.