About the Honda CM450
Carburetor, engine, brake and fork repair guidance for the CM450, with model and year checks for every linked part.
The CM450 family brings together the CM450A Hondamatic, CM450C Custom and CM450E. The suffix matters: the A uses a torque-converter transmission, while the C and E use a manual clutch. Use the complete CM450 designation and model year when checking each part.
Shared engine size does not mean shared parts
Some carburetor and rear-brake service items cover all three versions. Fork seals and manual clutch plates have narrower fitments. This family page helps you choose a branch; each model page then groups parts around the repairs relevant to that version.
Model and year guideChoosing parts for the CM450
| Repair | Part | Fits |
|---|---|---|
| Carburetor rebuilding | Honda CB450 CM450 Carb Rebuild Kit | CM450A (1982-83), CM450C (1982) and CM450E (1982-83) |
| Engine gasket work | Honda CB450 CM450 Engine Gasket Set | CM450E (1982-83), CM450C (1982) and CM450A (1982) |
| Rear brake service | Honda CB550 CB450 CB400 CM400 Rear Friction Shoes | CM450C (1982), CM450E (1982-83) and CM450A (1982-83) |
| Fork seal replacement | Vintage Japanese Motorcycle Fork Seal Set/2-33 x 46 x 11 | CM450C (1982) and CM450E (1982-84) |
Prepare for the repairIdentify your CM450 and the fitted part
Check the model code and year
Confirm the complete model code and year from the motorcycle’s identification label or registration. Do not drop the CM450, CM450A, CM450C, CM450E and CM450T suffixes when you check fitment.
Match the part already fitted
Compare the original part with the product photos and specifications. Check markings, dimensions, mounting points, left/right or front/rear position, and the quantity supplied.
Contact PartsNMore with your model, year and clear photos of the part and its markings.