my bike had internal airleaks between the cases,(local yamaha shop, did the bottom last year)
shipped the whole thing back to ken oconnor, said they used a screwdriver to remove the yamabond and gouged the hell out of it, he lap sanded the cases and put 'er all back together,
did 2 heat cycles so far, but it sounds and revs like its lean,
45 pilot and 155 main, needle on 4th clip???
it didnt like the 48 pilot before, but that was with leaks, 42 was too lean, the 45 starts right up with choke on when cold and idles nice???? strokedtater lives very close by, and is gonna maybe help me soon, says he's a wizard at it, and he did everything to his drag bike except the porting, hopefully soon