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Old 25-03-12, 02:04
countvonaltibar countvonaltibar is offline
Newbie XT-Moto
 
Join Date: May 2009
Location: Belfast
Posts: 10
countvonaltibar is on a distinguished road
Have been experiencing exactly the same problem myself tripletom. Was out for a ride today and in 3rd at 45mph with 4000rpm the revs start oscillating +or- about 100rpm and manifesting itself exactly as you describe. Will be taking the bike for a service hopefully this week with the chaps at Hursts Yamaha Belfast to sort the problem out, will let you know the outcome.