Can anyone help with my annoying K3 knock


New member
Jul 31, 2015
Hello all,
I am having problems with my K3 making an annoying knock from either the gearbox or clutch. When the bike is in neutral the noise is not there and then when you put it into 1st and accelerate there is a knocking noise for a second or so, shut off and accelerate again and it appears again. This happens in every gear but only while you first accelerate.This happens whether you start accelerating from zero revs or from say 4000 revs.
We had a sigma slipper clutch inand thought this might be the problem so switched back to the original and the noise is still there. Any ideas before we start replacing random parts ???

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