Jerrod R

But I just don't understand why putting my Airbox Cap on would make it increase RPM, just makes no sense, at least I've never seen a Engine react like that..

I have a good size sheet of Gasket Material left over from my XJ Build, so I'm starting by making all new Carb Boot Gasket's. And I won't, Running a Lean Motor up the Street seldomly ends positively.

Hey what's up guys, just bought an 84 Venture 1200 Royal. Got it running, even idling. But I know I have some sort of Vacuum leak it's Backfiring out over 3 of the Carbs, and it seems to be revving kinda sluggish. But the strangest part is when I put my Filter and Airbox lid on it causes it to rev up and idle at like 3000 RPM. This makes absolutely no sense to me lol. Has anyone delt with anything like this?