1 Vibration Sat May 19, 2012 9:56 pm
Avenger GT
Life time member
My 1986 K100RT engine has always been very smooth, with just a very slight tingle around 3700 to 3800 revs. In the last week it has become very rough, vibrating enough to rattle the side stand against the exhaust, and even causing the fairing to vibrate when you rev it in neutral and close the throttle, and also on the overrun. The vibration seems worse around 2500 revs, but is there through the rev range, or at least up to 4500 revs ( I didn't feel like pushing it any harder in case something went bang ). Power doesn't seem to be affected, and there is no problem with starting, and it idles around 1100 revs which it has always done. Investigations are ongoing.