My son's 2006 kx 65 engine started humming after his first moto today. I am thinking crank bearing but do not want to completely dive into the engine too fast. Am I running on a good assumption or is there something i can try first to pin point it better. Or could it be something else. Any help will be appreciated May not reply rite away but will to all posts and advice given. Would a clutch going bad make that kind of noise it gets more loud the faster it is ridden but it is not an unbareable noise? When the bike is reved up in nuetral when you let off the throttle makes a different pitched noise but not a crunching noise lol hard to explain, if you have ever heard a gear to gear drive on a car thats the kind of noise. it does it when in gear and on the throttle while riding it too.
Thnx
Thnx
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