1994 Yamaha 150TXRS. Idles fine, but when throttling up it looses power and RPM?s. Almost feels as though it is starving for fuel. But if left at open throttle for a while whatever the issue is seems to clear itself out and will run fine, until I stop the engine, then the process repeats itself. Carbs where rebuilt last year, and the fuel and water separator filters and fuel pumps were all replaced and it has run fine up until now. I?m still thinking some kind of fuel issue, perhaps time to clean the carbs yet again (thank you ethanol), but I?m open for suggestions. Thx!
