Drifter
New Member
I have read most all the posts on the subject...i have 2 ideas as to the cause.
1. Chain vibration, alot of big singles like my DR 650 at lower rpms in top gear cause violent vibs in the chain up-down and side to side scary to see with the guard off. Other singles do this also.
2. Its possible at this rpm in top gear the engine is running lean...which causes vibration. In due time there will be other maps available to richen it up.
It might be a combination of both that would be my best guess.
1. Chain vibration, alot of big singles like my DR 650 at lower rpms in top gear cause violent vibs in the chain up-down and side to side scary to see with the guard off. Other singles do this also.
2. Its possible at this rpm in top gear the engine is running lean...which causes vibration. In due time there will be other maps available to richen it up.
It might be a combination of both that would be my best guess.
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