Reply To: MZ TS250 First gear knocking › Forums › Technical › Two Stroke: Help needed › MZ TS250 First gear knocking › Reply To: MZ TS250 First gear knocking May 10, 2021 at 6:57 am #14059 Derek ReynoldsParticipant Might want to check that you have not lost a tooth on the first gear pinion. Had that on a Villiers once. Knocking increased as speed increased. Snick into a higher gear and all quiet.
