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Thread: Yamaha 1985 Trimoto 225 dx top end questions

  1. #1
    Join Date
    May 2020
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    Grand Haven
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    Yamaha 1985 Trimoto 225 dx top end questions

    I have a 1985 YTM225dx I've had collecting dust for a while and I decided to get it running. it needs a full top end re build and I'm having trouble finding parts. Will the bigger Yamaha 229cc jugs and pistons work on this? I cant find a stock 223cc top end kit anywhere.

  2. #2
    TexFest's Avatar
    TexFest is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Aug 2002
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    U.S.
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    Ttr225 dirt bike is supposedly the same top end, not positive though


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  3. #3
    Join Date
    Apr 2014
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    Edmond, KS
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    229 cc as in a Timberwolf cylinder? Yes it will. When I did this, I also had to use the Timberwolf cam chain tensioner.

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