17-12-11, 07:09 PM
I gave up in the end..... I have taken bike into Slocombes in Neasden, London. No news yet. Thanks to all advice and offers of help. I have been on a steep learning curve with the 4 cylinder Yamaha. The last bike I rebuilt was a xr250 honda (the first was a 2 stroke Garreli 50 many moons ago!)it was much simpler in those days. Tool collection and knowledge has grown a bit......for the next time! I will report diagnosis from Steve at Slocombes.