Model is in the title of the post, R90/6. Its a 1975. i believes I have finally found the culprit an fixed that particular issue (float needle valve...

Ok I guess I spoke too soon and now the problem seems worse, happening consistent from idle including idle till I rev it high enough to get it past th...

Thanks Richard and David. i ride all winter (as long as no snow) and run ethanol free fuel exclusively. I even put 4 oz of aviation fuel in each...

@wobbly thanks so much for the nice welcome. Yes, I’m aware. All considered and adjusted first, As my repertoire of skills grows, simple cable know...

I think I’ve answered my own question? The throttle cables can slip right out of the carb “threaded” bosses so simply loosening the lock nut on the ch...

@4949 so could you in theory leave it running and it would not overheat? mark