I just got a new HMF full exhaust and it came with new main jets but no piolet jets. Every thing is bone stock, (except for the full exhaust). Do I need to change the piolet jets? Or are they OK? Will my fuel screws stay the same?
You can probably live with the stock pilots, as long as you're not changing the airbox... but you might need to turn the screws out (CCW) a 1/2 turn or so. The screws are just valves that limit flow thru the pilots, so opening up the screws gives the pilots more flow.