Gearing Up – the work involved in stepping up from a 19 to 21 tooth front sprocket required some notching to be done to the case so the larger diameter gear could be slotted into the primary drive axle. 21 equally spaced grooves. Whilst I was in there the clutch was renewed which gives an very noticeable grab when throttle is applied. The gearing give about 12% extra wheel revolutions for the same engine speed.
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