Bonneville America Forums Forums Technical Forums Performance Mods Rejetting Help?

its more difficult but thats the way I would do it. also when you get what you think is close. you can take it for a run, If you get poping in decel you can rich them up some like 1/4 turn at a time.
step two is balancing because it is very easy to have one slightly richer than the other. now I am not talking vacumn balance if you dont separate the two carbs they should remain balanced in that way.
a good way to start is one of those lazer temp readers. allow the bike to cool all the way down so you feel no heat when you touch the header pipes. then start the bike and let it idle for about 1 or 2 minutes so that with your hand you can feel the header getting hot. then use the temp reader and check each header pipe if one is hotter than the other it is richer. adjust the the screw untill they read the same by repeating the step.