by okemos » Wed May 14, 2008 10:14 am
Yeah, I agree that the simple jetting trick is noticeable. You can even make more power gains with the airbox. Install a Twin Air Hi Flo air filter. Also, remove the rubber snorkel from the top of the airbox. You should take that main jet back to the dealer and get the 115 main, as there is still more power to be made. The exhaust baffle should be out for the best power. This is what I have found, at least.
My stock 150F with the above changes can do a 4th gear wheelie if I'm at the low end of the rpm and clutch it just right. No way without these changes.