Bonneville America Forums Forums Technical Forums Performance Mods Rejetting Help?

You can take the pilot screw out and cut a slot in it to use a screwdriver or buy thumb type screws or even buy slotted screws. You can also take a piece of brake line and flatten one side to make a D tool.

Then disconnect 1 spark plug wire and ground it then adjust the idle so the bike runs on the remaining cyl. Turn the mixture in until it runs rough then back out until it runs rough again. The correct setting is 1/2 way between those 2 points. Do the same for the other syl. then adjust the idle with both cyl. hooked back up. Don't spend too much time on this for one you don't want the engine over heating and you don't want to dump raw fuel in the engine and not burn it. You can do the same thing with both plug wirs connected but it is much harder to determine when the cyl. you are working on starts to run rough.