[Jetting questions] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

Pages:1

Jetting questions
(Click here to view the original thread with full colors/images)

Posted by: nofearrider1

I just put a HMF QRS slip on my YFZ. Im a total noob to jetting so.. Right now I have a 48 pilot and 165 main jet. And it seems like it runs fine, but there's an occasional back fire, and it dies down randomly. The midpipe is also like brown http://mail.google.com/mail/?attid=0.1&disp=thd&view=att&th=10ff966e3d9b1feb
So is it lean or what and what jets should i be at. I'm at 1200 ft btw.
thanks to anyone that answers

Posted by: woodsrider4ever

the easyest way to tell if your t olean or rich is look at the sparkplug you want a nive golden brown color if its to whit your to lean and that can equal holwe through piston to rich and it will be wet and youl lose horsepower not always a good thing so check that and let me kno how it loks mabe post a pic of it.