will be embarking on the same journey mate, pulled mine to bits today and cranks looks a little rusty in places is towards to top of its service limit and has unkown mileage, was just gonna do the tops end today but looks like a full rebuild is in order. blumming two strokes!

also found another resaon for mine not performing too well up top, there was a ton of play in the pv cables and one rc shft thread is buggered so the bit thta the cables attach to moves all over the place rather than opening the valve!

At least the bores and heads are mint, one positive!