I need help with my Jet size! i have a yamaha jog rr lc 2004 with a malossi sport cylinder, and polini 17.5 carb which is being fitted 2moro! around what jet size is the best to use?
I think it around 86 but thats on a piaggio engine best thing to do would be to buy a pack of jets and see which it runs best on gd look