1990 150hp force us marine 5cyl.3carb.-between the two coil packs is a screw terminal block with 6screws in it ,I took off 1,2 and put them back then took off 3,4 and forgot were they go #1,2,5 are good just need to know were #3,4 go.lost fire in #1 so was trying to check things out.any clues why #1 plug lost fire plz. help thanks 
