Hello. First of all I can't find any model numbers on my engine that match any thing on line. What I can find is series GJAA-6901829 S3L etched on the right side of the block. There is nothing on any of the cowling. The engine on my second or more hand Husqvarna has always been hard to start whether it was cold or hot. To compound this, the mower was under water due to flooding. I flushed the crank case and removed the carburetor and cleaned. on start up the engine run a very low idle and had no power. Carburetor removal cleaning reassemble. Now the mower runs at extreme high idle like the governor is advanced. Carburetor removal number 3.... perhaps the thermowax automatic choke is part of the problem????