Rotor Puller Tool | Honda CB175 / CB200 / CB350 / CB360 / CB450 / CB550
The rotor on your vintage Honda twin is pressed onto the end of the crankshaft with a tapered fit and held in place by a key. It is not coming off without the right tool. This CMC rotor puller threads directly into the rotor and pushes against the crankshaft to pop it free — the same method Honda specifies in the factory service manual.
Why You Need This
The rotor (also called the flywheel) sits on the left side of the engine. It carries the ignition timing marks and is the key component of the electrical charging system. Any time you need to service the starter clutch, inspect the stator, or convert to kick-start only, the rotor has to come off first. If your electric starter sounds like a bottle cap in a garbage disposal, the starter clutch behind the rotor needs a rebuild — and this is the tool that gets you in there.
There is no substitute for this tool. The threads inside the rotor exist specifically for this puller to screw into. Trying to pry or hammer the rotor off will damage the crankshaft taper, the rotor itself, or both. Honda lists this as special tool no. 07933-2160000 in every factory service manual from the CB175 through the CB550.
Specifications
| Spec | Detail |
|---|
| Replaces OEM Tool | Honda 07933-2160000 |
| Drive | 18mm hex / 1/2 inch drive ratchet |
| Fits Models | CB175 (1968–1973), CL175 (1968–1973), SL175 (1970–1972), CB200 (1973–1976), CL200 (1974), CB350 (1968–1973), CL350 (1968–1973), SL350 (1969–1973), CB360 (1974–1976), CL360 (1974–1975), CJ360 (1976–1977), CB450 (1965–1974), CL450 (1967–1974), CB500T (1975–1976), CB500K (1971–1973), CB550K (1974–1978), CB550F (1975–1977) |
| Sold As | Individual tool |
Note: This rotor puller does NOT fit the Honda CT90, CB100, CL100, CB125, or CL125 — those engines use a different size rotor with different threads. We sell a separate CT90 / CB125 Rotor Puller for those models.
Installation
Difficulty: Intermediate
Tools needed: This puller, 18mm socket, 1/2" drive ratchet, 10mm wrench (stator cover bolts), oil filter wrench or strap wrench (to hold rotor), oil or light grease
- Remove the left side engine cover to expose the stator and rotor.
- Remove the rotor bolt — an oil filter wrench or strap wrench around the rotor keeps it from spinning while you break the bolt loose.
- Lubricate the threads of the puller with oil or light grease before threading it in.
- Thread the puller into the center of the rotor until it seats against the end of the crankshaft.
- Using an 18mm socket on a 1/2" drive ratchet, tighten the puller clockwise. It pushes against the crankshaft and pops the rotor free.
- Watch for the half-round key (Woodruff key) on the crankshaft — it will drop out once the rotor is off. Do not lose it.
CB550 note: The CB550 series engines do not use a half-round key on the crankshaft.
Our CB350 engine teardown video covers the full rotor removal process using this puller, including starter clutch disassembly and the half-moon key.
Frequently Asked Questions
Will this fit my CT90 or CB125?
No. The CT90, CB100, CL100, CB125, and CL125 use a different size rotor with different threads. We sell a separate CT90 / CB125 Rotor Puller for those models.
Can I remove the rotor without this tool?
No. The rotor sits on a machined taper on the crankshaft and is held in place by a key. The internal threads in the rotor exist specifically for this puller. Attempting to pry or hammer the rotor off risks damaging the crankshaft taper, the rotor, or the stator behind it.
What socket size do I need to use the puller?
An 18mm socket on a 1/2 inch drive ratchet. You will need the leverage of a 1/2" drive — a 3/8" ratchet usually will not provide enough torque to break the rotor free.
How do I keep the rotor from spinning while I use the puller?
Wrap an automotive-style oil filter wrench or strap wrench around the outside of the rotor. Place a rag underneath to protect the rotor surface.
Do I need this tool for a starter clutch rebuild?
Yes. The starter clutch sits behind the rotor on the crankshaft. Whether you are rebuilding the starter clutch or removing the electric starter entirely for a kick-start-only conversion, the rotor must come off first using this puller.
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Last updated: March 2026
