I'd go up to 90. So have on hand at least 80, 85, 90. For fine tuning you can buy the in between sizes of 82, and 88. But the first three ought to cover you for pretty much any condtition. 75 or 72 is probably what's in your stock so don't buy the smaller sizes as you're not going to be keeping a stock exhaust.

But if you truly have a secret 63 engine you need to always put in premium gas. These engines have a tendency to have very high compression and are prone to knocking when using regular fuel.

Thanks, Qwertydude. I wasn't sure what range my stock jet might be in, I'll be sure to take the 75 out of my cart and I'll be sure to include 80, 85, and 90 in there.

I can't be too sure on what my engine is, but it has a 6B near the rear wheel, and it's labeled as "1p39qmb"; either way I'll be sure to continue to only use premium.

Really appreciate the help

Order has been placed. I will probably end up fine-tuning later on, so for now I just ordered 80, 85, and 90.

UPDATE!:
http://www.youtube.com/watch?v=iNg4G...ature=youtu.be

It would appear that most of my problems are solved!

sounds great it's probably faster too :yay: I probably wouldn't rev it on the center stand that high very often.

Thanks, Millsc!

Only did it for testing and show ;]

Wheel was spinning because when you adjusted the idle it was running lean. When you put the tape over the 2nd hole or what have you, It balanced it out, therefore, runs better. Re-adjust idle now that you have 2 holes covered and again after the Re-jet.