Home Forums 2-Cycle Racing What Lapping compound do I use for clutch

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    • #69893
      Bob Spedding

      hey guys, I’m needing to take my clutch off and when I put it back on it says to use lapping compound to put it back on. It is a tomar td23-2 clutch.  Ive got the tools to take it off just never done it before.

      any advise when putting it back on would be a big help.


    • #69922
      tony zambos

      you should only have to lap the clutch once to insure the two tapered surfaces match. I’ve used a valve lapping compound from my local auto parts store.

      LAD Specialties customer / tony kart / rotax / kt100

    • #69925
      Walt Gifford

      You can easily screw up the fit so, before you do anything test the fit, it might be ok. Put the clutch on with less than full torque and see if you can pull it off by hand with reasonable force. If not it’s a good fit. If you have to lap it don’t use anything course, you want 800 grit aluminum oxide or something similar. You want the taper to grip mostly on the big end so put a TINY bit of grit on the small end and work it in. Test often.


      FAA certified jet engine and aircraft technician,
      Nicholson Speedway class champion 2001,
      Yamaha KT100 Service Center,
      41 years karting experience

    • #70019
      Bob Spedding

      Thanks. So valve lapping compound will work?

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