Are you using the choke for starting? Particularly on a cold start, that's what the choke is for- - - -to make it rich enough to start. Pull the choke out all the way- - - -DO NOT do a flamenco dance on the gas pedal- - - - -and crank until the engine fires. That should happen in 2-3 seconds, max. (Please remember to turn the ignition on- - - -lots of flooded engines are caused by choking with no spark) Once the engine fires, push the choke knob in halfway and let the engine warm up at fast idle. That's built into the choke linkage. Choking pulls gas through ALL the passages- - - -idle and high speed.
Hot starts should happen without choking, unless the carb has been percolating raw gas into the intake. In that case, hold the throttle wide open and crank until it starts.
Jerry
