I'm running the main jet the quad came with stock, a 145. Stock airbox, stock air filter, and stock exhaust. Pulled the spark plug today and it is not white but almost. The spark plug has a very light, light tan color to it. I think the quad is running too lean. I have a 146, a 148 or a 150 main jet that I could put in. My question is what main jet should I put in? I afraid to jump up too high in jet size but I also don't want to replace the main jet like 4 different times. Just trying to get some educated opinions from you Warrior owners out there. Thanks in advance for the advice![img]i/expressions/face-icon-small-happy.gif[/img]

 

Yup sounds a lil lean. no too much though. I would put a 148 in it. Tha should be fine. At what altitude are you at?

 

Altitude is only a couple hundred feet above sea level.