What size jets?  By  ryaanlx (Read 299 times)

Stock should be something like 78 main, 35 pilot. I have a Peace Sports 50.

I didn't have a performance exhaust, but when I had a 63cc with a performance filter I ran an jet. You should try 80-, maybe even for your setup as each bike is different just remember to do plug chops and you should be okay.

GY6 can be a 150cc carb which would not be recommended without a big bore kit and big bore head. I recommend a 139qmb carburetor. Scrappydogscooters has them. They're cheapest on Amazon from what I can tell.