hey guys this is my first post here and i finally experienced a problem with my challenger. The right side engine is fine with excellent compression and goes to beat hell but my left engine is basically a tag along with no power to do anything. The dealer put a carb kit in it and said they checked it out and couldnt see anything wrong with it. It starts hard as in i have to pull the primer even when its warm to start and once running it will idle fine but as soon as u put the throttle down its gutless. If the good engine is running about 6200rpms the bad runs about 5200 and if u cut bad the good engine the other just dies with it. Iv taken it to the sea doo dealer in my area here over and over and they keep making it worse. Any ideas on what this could be thanks.