Hello all, I am new here and hope someone can help me out. My 40 horse is putting out a very nice blue spark on cyls# 3 and 4, and a very weak to non existent spark on cyls #1 and 2. I replaced the stator with a good (tested) unit, and had the same results. I then moved the coil from the # 4 cyl to the # 1 cyl and found the same result again. I'm not too familiar with the ignition system here but I think my trouble must be "up stream" of the coils somewhere. ( I should mention here that I had replaced my plug wires last year before this weak spark issue started.) Any ideas? Thanks. Cassville.