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250r

  1. How Big of Bore Can I Go???

    Honda TRX
    I have an 1988 or 9 trx 250r cylinder head jug, its been ported and, ETC But anyway the piston says 3.50 on the top, and the jug is in need of a bore.i know that this way be pushin the limit, but i was wondering how much more can i bore it out to,, WITHOUT re sleeving. THANKS.
  2. 86 250r Leaking oil out case, stumped! help!

    Honda FourTrax
    hi all, new here, but none the less to the question... i have an 86 trx 250r, on the clutch side of the motor oil is seeping out of the top of the seal right behind were the radiator hose enters.... now we assumed the issue was the crank seals had gone bad and due to pressure back up it was...
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