Join Date: Nov 2012
Location: Savannah Georgia
stalling over 80!
Hey everyone, i'll keep this as simple as possible! I own an 88 vulcan that I have done the earshave mod with filters and jets as per the earshave manual haha! When I bought the bike it had a custom made exhaust that is literally straight piped front to back, and the rear cylinder exhaust cuts over to the right side and exits with the front cylinder exhaust (i call them shot gun pipes)! Now i've messed with jetting before on other bikes and not had much trouble, but this one is throwing me for a loop!
The bike runs great at idle, and even rev's full on without a load! When riding, if I get on it from a stop it feels almost like it's running lean uptop, past about 5k, and the exhaust sounds flat! If i'm cruising 80, and gun it, it barely accelerates, sounds flat, and actually starts to stall it feels like! (maybe the plugs are too lean and it's dieing down?) once it starts to spit and sputter if i let out and coast and then just cruise low throttle, it'll be just fine again! But it WILL NOT go over 80/85 before it stutters!
Now I have not blocked off the reedvalves (coastered). They are just running open for now. Would plugging them/coastering them change anything or are they purely emissions (like a valve cover breather on a car?)
I have read where a few people are running closer to 150-155 mains with more open exhaust, this is my next move! The flat exhaust makes me think lean, but i guess i'm looking for a second opinion! I'm at about 50 above sea level (savannah georgia)!
Any and all help is appreciated, any other questions about the bike, please ask! It's gorgeous bike, fully customized top to bottom and I hate that it doesn't run 100%!