My 30 pilot was rich, so I put in a 25 today. The airscrew is at 1.5 turns, and the clip is in the middle position. The main jet is a 420. The wierd thing about the 25 pilot is that when I warmed the bike up, it would run OK and after a blip of the throttle, the RPM would go up about 500 RPM. It wasn't really high, just like a real fast idle. When I applied the choke to slow the engine down, the engine still revved higher than normal even with all the extra fuel. The bike doesn't sound lean when down low, as the RPMs didn't fluctuate like a lean pilot would do. The power was better than with the 30 pilot as well. The wierd carb symtom didn't occur anymore after I started riding, so should I worry? Could carb cleaner left in the carb have done this?