So my 1990 Kat carbs were taken off and thoroughly cleaned out. All rubbers were good, (SAT). Carb #1 butterfly was stuck, so like an @$$ I decided to put a screwdriver on the butterfly and whack it with a hammer....in an effort to free it up. I know. The dumbest thing I could have done. Some Areokroil finally freed it up in the end. I pulled that butterfly to true it back up, though it wasn't that bad.
(A little history. I got the bike from my next door neighbor. The bike has 17K original miles on it. Supposedly ran when it was last parked. Was last registered in 1999. All jets are stock and I drilled the brass plug to access the air screw circuit to clean. They were all set to 1/2 turn out and I set them to 2.5 out, as recommended.)
So I re installed the carbs and air box w/o filter. (This bike has two petcock outlets and a nipple for the vacuum port. The tank needs to be lined yet with the POR15 tank sealer three step product since it has rust.) I used an overhead motion pro tank into a brass T which fed each of the two carb supply hoses. I started it up and as soon as it started, it rev'ed HIGH and we immediately shut it down. I tried turning the idle all the way down, CCW and that did nothing. So I turned it CW all the way and that actually seemed to lower the RPM's to about 4500 which was still screaming at 4500. I didn't mess with the sync screws and assumed that they should be alright, at least to start the bike. What kind of gap should the butterflies have at the bottom of each butterfly?
I am a little stumped. Is it rev'ing like that because the air filter was off? Is it rev'ing like that because of the head pressure of the overhead tank? Is it rev'ing like that because of the air screw at 2.5 out? Is it rev'ing like that because of the butterflies? I am at a loss any help would be appreciated.
Thanks
(A little history. I got the bike from my next door neighbor. The bike has 17K original miles on it. Supposedly ran when it was last parked. Was last registered in 1999. All jets are stock and I drilled the brass plug to access the air screw circuit to clean. They were all set to 1/2 turn out and I set them to 2.5 out, as recommended.)
So I re installed the carbs and air box w/o filter. (This bike has two petcock outlets and a nipple for the vacuum port. The tank needs to be lined yet with the POR15 tank sealer three step product since it has rust.) I used an overhead motion pro tank into a brass T which fed each of the two carb supply hoses. I started it up and as soon as it started, it rev'ed HIGH and we immediately shut it down. I tried turning the idle all the way down, CCW and that did nothing. So I turned it CW all the way and that actually seemed to lower the RPM's to about 4500 which was still screaming at 4500. I didn't mess with the sync screws and assumed that they should be alright, at least to start the bike. What kind of gap should the butterflies have at the bottom of each butterfly?
I am a little stumped. Is it rev'ing like that because the air filter was off? Is it rev'ing like that because of the head pressure of the overhead tank? Is it rev'ing like that because of the air screw at 2.5 out? Is it rev'ing like that because of the butterflies? I am at a loss any help would be appreciated.
Thanks
Comment