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  1. TRX General Discussions
    I got this 1998 300ex which looked good and rode fine. I test drove it for about a half an hour and it was solid… so I bought it. It was mostly stock from what I can tell. Started to hear a noise from the top end. Ended up tearing the motor down and found a very loose timing chain sprocket and...
  2. Engine/EFI/Drivetrain
    hello i have a 2003 trx300ex that had issues starting, so i assumed it had clogged jets, i cleaned them and replaced everything back and starts right away but it gets hot really fast and idles really high, any ways to fix this issue? thanks
  3. Engine/EFI/Drivetrain
    I've got a tapping which I believe is coming from the top end. Just started doing it. Runs great. No loss of power or anything if someone could listen and maybe steer me in the right direction. Valves? Piston slap? Cam chain? Bearings? Could it be an exhaust leak at the gasket? Here's a link to...
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