just rebuilt mercury optimax 225hp it was sparking on all cylinders..i put it back together. Now its only sparking on cylinders 5 and 6..all the ignition coils are good. the TPS seems to be good. checked the 4 20amp fuses. they're all good to. checked neutral safety switch and i unhooked it, still no spark on 4 cylinders. disable kill switch and key switch..still no spark on 4 cylinders...kill switch wire is black yellow. still no spark on 4 cylinders..only thing i notice is i may have pinched the air injector plug a little when putting it back on...please help ... i am a boat mechanic but this engine is driving me nuts thanks...
engine sn is 0g750475
engine sn is 0g750475