So i have a 30mm carb, cdi, coil, fmf exhaust, slider weights, and uni air filter and it wasnt running right so i switched the jets to 40 and 140.. it ran better with no bogging but all of the sudden it backfired and now when you give it any throttle it just dies.. It wont turn off after you start it either with the key..... I have tried everything, any suggestions of what it is?
Thanks!!!