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Posted

Well my quad died in the middle of a race sunday, I landed a jump and it was like teh key got shut off or something. I tried starting it and it sounded like it wanted to start, it would fire for a half second then die, but never run. We cleaned the carbs , checked spark, all that was fine. Then we checked compression and it blew our fingers off the plug holes, so we thought it was fine, but I got home and pulled the head off and saw a scratch so I pulled the whole jug off and found this. I also found coolant in my left pipe. I think this is why.... and I have a question... would low compression cause the gears to be really short and wind out fast?

 

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Posted

ohman i hate to see that, hope you get it all worked out and the way you explain it it sounds like you clutch is slipping if you rev high and your gears are short.

Posted

Are wrist pins like SUPER strong or something? because I looked at them today and they had NO wear watsoever on them, but the ends match up to be the perfect side of the grooves in the cylinder walls. I guess what im tryin to say is .. can wrist pins own some cylinder walls ? :D

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