About the Honda CB125 family
Find the CB125S or CB125TT branch before building your repair list.
The CB125 family collection brings early CB125S rebuild parts together with later fuel-system and CB125TT applications. The useful distinction is in the component: a 1973–1975 S-model carburetor kit, a 1984–1985 S-model float needle and a 1990 TT fork seal belong to different repairs. Use the model links above to reach the right branch.
Early rebuild kits and later service parts
For a 1973–1975 CB125S engine and carburetor rebuild, compare the premium carb kit and overhaul gasket set below. Later CB125S fuel-valve repairs use separate components. The 1990 CB125TT has its own fork-seal, float and front master-cylinder examples on the dedicated TT page.
Know your model before choosing partsCB125 model and repair differences
Early CB125S
1973–1975 carb and gasket work
The featured premium carburetor kit and overhaul gasket set both explicitly include CB125S 1973–1975.
Parts checkpoint: Do not extend those complete kits using another part’s wider year range.
Later CB125S
Component-specific service
A separate float needle lists CB125S 1984–1985. That application does not make the early carburetor kit suitable for those later bikes.
Parts checkpoint: Use the installed carburetor and exact year to choose fuel-metering parts.
CB125TT
Selected 1990 applications
The linked fork oil seals, carburetor float and front master-cylinder repair kit each record CB125TT 1990.
Parts checkpoint: Keep that label distinct from CB125S and verify unfamiliar market codes.
Frame, engine and component checksIdentify your CB125 before ordering
Record the frame and engine markings, then compare the component being repaired. Include replacement-engine or chassis details if the motorcycle has been modified.
- Identify the full model from frame and engine markings rather than engine capacity alone.
- Keep the carburetor’s stamped identification with your repair notes.
- For gasket work, compare the actual engine and the joints being opened with the package contents.
- For suspension, measure the existing seal and identify any replacement fork assembly.
Contact PartsNMore with your CB125 model year, full markings and clear photos of the component.