Re: Syncing Keihin Carbs on a cb750k with a motion pro syncpro setup

Posted by wadestew on May 16, 2012; 1:47am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Syncing-Keihin-Carbs-on-a-cb750k-with-a-motion-pro-syncpro-setup-tp3987300p3993221.html

ShinyRibs,

I guess my real issue before I sink these carbs is that after the bike warms up, it idles SUPER high at like 3000 rpm when I roll up to a stop sign. When I adjust the main Idle knob down, I have to adjust it off enough that it eventually dies so I'm completely shutting the butterflies at this point I assume because the idle knob is not touching the throttle body to open them.

I should point out that I purchased the bike with pod filters installed will this mean that I have to screw "In" the air/fuel mixture screws more because of the increase air intake with these filters?

When I rebuilt the carbs, the kit came with 68 primary and 102 secondary jets. The ones that I replaced were 75 primary and 115 secondary. Could that have to do with my idle issue? It WAS doing it also before I replaced them.