1999 merc/tracker 50 4 cyl/4 stroke carb problem

jeeperjoe

Cadet
Joined
Sep 7, 2012
Messages
6
took 4 carbs apart and into carb cleaner, after reassembly ive got idle problems, previously it had acceleration problems that are fixed, now at idle its fouling the spark plugs, I didn't replace any rubber or gasket material, it all looked fine, I could see the top cover seals plugged low speed control screw, im wondering if maybe this is where my new problem occurred, this carb also has a oring on the plug covering the pilot jet, is the pilot jet cavity pressure controlled by the air screw?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
39,270
Did you balance the carburetors after assembly and start up , yes or no ?
 
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