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Discussion Starter · #1 ·
Hey so there's this rattle coming from around the head. It progressively got worse over time. It makes the sound when I rev the bike, with it in neutral and in gear. Sounds almost like something's bouncing around. Checked the valves and they were in spec. Any suggestion would be appreciated.
 

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If the chain felt tight then you should be good. I thought you meant vertical movement in the cam chain guide. What head are you running? The roller rocker heads can be noisy but if it's getting progressively worse then it's probably not normal.
Mine was making a bit of dinging and I figured it was a bit of piston play due to worn rings. (Wasn't smoking only dinging subtly when I dogged it at low rpm in a higher hear). I also had a bit if noise from a worn crank on a crf50 motor...
I'm a stickler for chasing noises and hate when I can't pinpoint them... Good luck!
 
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