954 with rattle sound at 4000rpm and up - CBR Forum - Enthusiast forums for Honda CBR Owners

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Old 06-13-2018, 08:42 AM
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Default 954 with rattle sound at 4000rpm and up

Hi all, I've just bought a 954 and rode it home with ear plugs in, after riding it the next day without ear plugs I can hear a light knocking noise at 4000rpm and up.
if stationary and revved up there is no noise and the engine sounds perfect.
If it was cam chain rattle surely it would do it when stationary also ?
The drive chain for the rear wheel is lubed and set at the correct tension.
I have checked for loose nuts bolts and checked the spark plugs are tight but these things would make a noise when stationary.
Chain and sprockets are in excellent condition.
I'm thinking it's the cct at fault but why can't I only hear the noise when moving ?
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