hi, at long last the motors mostly stripped, There seems to be a few issues going on

firstly when pulling the head down i could not believe, the cam was out a tooth, on inspection the tensioner was out to it's last hmmm, with the head and barrel off all became apparent. the timing chain guide[intake side] pivots on a imo flimsy metal bracket which had disintegrated allowing the guide to move up as well as rubbing the back of the chain. not an impressive design!

next the gear stopper bearing has collapsed, this hold the gear selector drum from rotating freely, it kind of indexes it to a set gear. i'm guessing with it being fecked it has allowed the gears to 'auto' change.

the elephant in the gearbox, well thats obviously knackered. it's the '3rd pinion gear', a broken bit has damaged the '4th wheel gear' [yamaha manual names]. so will get on to yam with my list of bit and bobs and all will be well again. hopefully!


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