tune or vacuum?
#1
tune or vacuum?
I rebuilt the engine on my bike of the winter, got it all back together and couldnt get it to run much at all. I replaced the fuel line and fuel filter, set the carb float to specs, it seemed to hang a little to low, and also did a carb kit. Cleaned all the jets, replaced the rings, the diapragm in the accelorator pump and put in a new needle. Now the bike will pretty much idle all day, but any sort of throttle feed about kills it. I spent a while messing with the mixture screw, doing as is written in many of the tuning instructions but it doesnt seem to make that much of a difference, unless i have the mixture wicked lean or rich then it barely idles. MY question is what should I do next to try and figure out this problem? keep up with the tuning maybe turning the screw in 1/8 increments instead of 1/4, should i check for vacuum leaks somewhere? I just used new gaskets and such for the manifold, but im quite lost at the moment.
My bike is a 1992 sportster 1200 with the harley cv carb on there
My bike is a 1992 sportster 1200 with the harley cv carb on there
#2
#3
#4
well the accelorator pump is definitly working, so it isnt that. I find that the first time i start it up and run it with full choke it responds 100% then after a little while of idling it wont respond as well to any throttle movements. I cleaned the pitcock and screen and everything today but the battery died on me before i could check to see if that made a difference im pretty damn sure it is something to do with the carb, although i didnt get to do the WD-40 test for a vacumm leak. Can someone describe to the side effects of:
1) vacuum leak
2)running too rich
3) running too lean
I usually am able to determine one from the other symptom wise but this bike issue i think is causing me to slightly loose my sanity and not think straight.
1) vacuum leak
2)running too rich
3) running too lean
I usually am able to determine one from the other symptom wise but this bike issue i think is causing me to slightly loose my sanity and not think straight.
#5
#7
Thread
Thread Starter
Forum
Replies
Last Post
diddlyd
Carburetor Related
2
12-19-2015 11:17 PM