Bike won't run, fuel from carb vent line
I got a bike with a torn diaphragm that was running super rich. The idle screw was also set so low that it wouldn't idle, cold or hot. The bike did run if you held the throttle, just very poorly and super rich.
I replaced both diaphragms since one was completely torn and cleaned the carbs. I also rejetted to 140/40 front and 142/40 rear per recommendations here because I coastered and shaved the ears. I know, too many variables at once isn't good but I didn't want to redo the carbs.
Now the bike just cranks and cranks. When I'm cranking, fuel dribbles out of the T on the carb vent lines. From what I read this is supposed to go to tank but I don't see anywhere to attach it. It's an 86 and I read that it may not have that from the factory. Pretty sure gas shouldn't come out of there though.
Is this the carbs flooding? I drained them both and got a normal looking amount from each.
Help would be much appreciated. I'm supposed to bring this bike to a safety course on the 12th. Thanks.
Checked that the A/F screws were at 1 1/2 turns. Started up for a few seconds on both cylinders at 1200 RPM and dropped slowly until it died. I can get it to run sometimes for a few seconds at half throttle but not idle. Both carbs are spitting fuel and wetting the filters. They're 140/40 and 142/40 jets, brand new genuine Keihin.
Last edited by FieroGT42; 07-31-2013 at 07:33 PM.