a.dumont 10 #1 Posted June 16, 2018 Just completed a K482 rebuild. Everything is within tolerance/specs. Valves and points adjusted. New plugs gapped to spec. Timing adjusted. Brand new carburetor and air filter. Runs great off idle, but will only idle if a bit of choke is added. I started the idle screw at a base adjustment of 1 1/4 turns. Still won't idle at 3+ turns. I'm curious if I have a bad carb, or possibly a bad gasket between the carb and the 90 degree elbow. I did notice the gasket blocked a passage, so I punched a hole thinking it was for a vent. (See picture). Is this port supposed to be blocked? Share this post Link to post Share on other sites
Sarge 3,462 #2 Posted June 17, 2018 No, that hole should be open. Sounds like you might have some gunk in the idle circuit, it's not unusual to have a new carb show up with debris in it - especially aftermarket ones. I hope with the rebuild you replaced all the fuel lines - ethanol fuel or just plain age can cause the hoses to break down over time internally, plugging up the carb. Sarge Share this post Link to post Share on other sites