Hey guys, need some help. I have a 1998 model 200 EFI Mercury Serial number 0g654319, that is bogging down under load. It runs fine on the hose but runs rough and bogs to about 3000 rpms under load. I have taken off and cleaned everything fuel system wise. Today while trying to run it. I had someone run it and I pulled the spark plug wires off of each cyclinder while it was under a load. The port side 3 cyclinders had noticibly weaker fire than the starboard 3. You could hear them motor drop a little when the top and bottom were pulled but noticed nothing on the middle. The starboard side was a drastic difference when unplugged and you could see fire jumping to them when trying to hook them back up. Any ideas on where to test next? Any help will be greatly appreciated.
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