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  1. John Savage

    03 loses power and dies after 15 minutes

    I live in Mass and my friends parents have a house in North Haverhill. We rode down to Lisbon. I did a compression test using a car compression tester and got 90. I think that's real low even if you add 10 to 20 percent more for using a big bore tester. I'll do a leak down test tonight.
  2. John Savage

    03 loses power and dies after 15 minutes

    Thanks for the help I'll pick up some new plugs tonight and give it a try
  3. John Savage

    03 loses power and dies after 15 minutes

    Plug chopped? I pulled the spark plug and it was pretty dark. It has an aftermarket pipe. What did you rejet to.
  4. John Savage

    03 loses power and dies after 15 minutes

    I just bought an 03 for my son. It started right up at the former owners house and ran great. We went trail riding in NH on Sat and it ran fine for the first 15 to 20 minutes then died. I tried to restart it but it felt like it had no compression. We towed it for the next couple of miles and it...