1989 rebuild update
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Road tested today and a sweet ride (as it should be) suspension good and engine strong although running a bit rich. Not keen on Romeu exhaust firing straight out, if it was mine would have tube fitted to deflect exhaust away from rear of bike. Also right calf felt the heat from the expansion chamber but I was only wearing jeans, not a problem with standard exhaust with heat shield. Stronger all through the rev range than my standard bike and impressive in the top half especially, replacement clutch perfect. Mot this week hopefully then away to the new owner sadly, but then start on no 3!
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Just enjoy doing it, no other reason. Never going to get rich doing what I do, built the red one for myself and lifelong friend asked me to do one for him, that's the white one. The endurance blue one to do is a genuine 88 and there are few left now so not sure what I will do with it when finished. Bike mot'd yesterday , no issues but unhappy with low speed running. Took round to a friend whose son races mx at high level, he builds the engines up . Suggested next size pilot jet so removed this morning and found wrong one fitted, should be 25 but 17.5 fitted. When I rebuilt the carb assumed (wrongly) correct size in situ so just cleaned. Need magnifying glass to see markings, have a spare so no problem. Always use genuine jets, have some cheap ones any they are way out and poorly made. Thanks for the compliment BTW, does attract a lot of attention when I have taken it out. Did turn out better than my red one but always suspected it would, donor bike far better to start with.
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What setup are you using?
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Bike has gone to new owner now so just a quick update to final changes. Managed to source final oem panel so that all bodywork now genuine new yamaha parts. Had to purchase another decal kit though so have spares should they be needed. Final carb jetting was 25 pilot jet and 240 main jet and seems happy at that, running in at the moment and still entertaining to ride. Left the water hoses off the carb and just looped cylinder head feeds, never used in the cold by owner and aided quick removal of carb setting up. Gives me funds to carry on to the next one after the summer but endurance blue panels hard to find, may have to resort to having originals refinished and sprayed to match, have a nos tank and low mileage speedo though!
