Does it do it at idle or low throttle or just full throttle? Is the variator rubbing on something? You should be able to track it Dow. No prob, just start limiting the possibilities, start by removing the belt after you start it or start with a drill so you can rule out the pulley and chain. Then put the belt on and take the chain off etc until you pinpoint the source.
Re: 40 t vibration-
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