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

This topic contains 3 replies, has 3 voices, and was last updated by  Bob Spedding 2 years, 1 month ago.

  • Author
  • #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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