Engine mounting bolts correctly torqued?
Hi Lamin,
I have been thinking along similar lines though by bike does not vibrate as bad as yours from your description.
The first thing to check is that all the engine mounting bolts are tightened to the correct torque, including the head steady ones.
The most obvious reason would be worn engine components, especially crank bearings, or a previous owner having removed or mis-timed the balance shaft (some people believe that removing it increases power or throttle responce).
If you remove the lft hand side circular plastic inspection cap at the end of the crank shaft you can gentallt lever the end of the shaft to look for free play in the left hand main bearing. I have a little free play here but don't know how much is normal for a ball or roller bearing.
Good look, I will be watching i the hope that you may throw up the answer to my problem too.
Mark
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