my bike started making a rattling noise after drowning it out in water. i thought it was the timing chain tensioner, so i replaced it. that wasnt it. so i pulled the centrifugal clutch off, thinking it was that, but it still made the noise. i then took off the secondary clutch to isolate the noise even more thinking it may be the crank, and the noise stopped. so i know it is not the motor or the centrifical clutch. DOES ANYONE KNOW WHAT ELSE IT COULD BE. IF SO PLEASE HELP.