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Thread: Tri-z cracked crank cover.

  1. #1
    Join Date
    Aug 2012
    Location
    Perth WA Australia
    --
    120

    Tri-z cracked crank cover.

    hi guys figured out why my transmission oil was milky, cracked crankcase cover. took it for a spin and tranny oil started flying all over the shop. Was pretty depressed. Anyway ordered another one from Oem yamaha and all gaskets bolts etc etc. But i mainly want to no why this happens?? is it something that can be prevented. bike went really well otherwise shifted beautifully didnt skip a beat. Pretty sure the guy who sold it to me new it was cracked but anyway. Any ideas would be great.

    Regards Mat.

  2. #2
    Join Date
    Feb 2011
    Location
    fingerlakesny
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    2,834
    ive had trikes that i hit stumps and rocks and such and cracked the cases. is the area where the crack was protected by the frame or skid plate ?
    our original 85 we bought new, 2 - 86 police specials
    250r dust runner
    04 Yamaha kodiaK 450 snowbuster ! Brute Force 750 dust collector .
    Bunch of es stuff I been buying for next builds....
    Gone but lives on in my aching body the mighty 350x collection . A Beat 85 es im gonna rebuild

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