Originally Posted by Len Todd

I watched the walboro video on setting the arms. The first one was set at 6 pounds and the second one was 4.5. I set them both at 5 per the spec. However, there was no change. The left cylinder kept cutting out. I then reversed the spark plug wires to see if the miss-firing cylinder swapped to the other side of the engine, which it did. I think I have two bad CDI boxes as they both act the same way. What PITA seeing how they both were running just fine until this problem and then the problem showed up on both engines.Anyway, I now certain it is a spark issue. Too bad I did not think of the swap before I spent three days on this. Dang.