Engine Vibration

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Gary Parker

Well-Known Member
Joined
Sep 16, 2021
Messages
118
I recently bought a used Dragon Hobby "Coke Race" Hydro F1 rc boat powered by a Chinese 26cc CPV Racing two stroke engine. The engine starts and runs OK but it seems to vibrate at idle and again under acceleration more than the similar chinese Zenoah clones that I have in my other boats. The only obvious difference I can see is that the anti-vibration motor mounts are an orange rubber compound whereas the other boats have black rubber mounts.
What engine issues should I also be checking that might be the cause of excessive vibration ?
 
Pull engine apart check flywheel to crank if ok I would pull crank out see if it’s twisted
 
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