Originally Posted by Lenz1
The manual I'm working from is genuine Yamaha for the TT350S. ......
In this country XT and TT are two entirely different bikes. The TT here was a competition offroad bike that was not street legal and very different than our XT. We did not get the TT models that are imported to other countries.
Our XT uses a half CV monstrosity of a carb that is EPA jetted so lean the bike will barely run. There is no float height setting in the manual. You have to buy or a make a special Yamatool and adjust the fuel level through the float drain with the carb on the bike and assembled.
It is pure trial and error with each error requiring disassembly and reassembly to test. The slightest error and the bike either leaks fuel or won't run. Trust me, it is a bitch to do.