125 HP Force L-Drive NO SPARK!!

[Ohiodeerhunter]

I have a 1989 Bayliner Capri with a 125 HP Force L-Drive Motor. My bottom two cylinders are getting spark, but my top two are not. Any suggestions? Not sure if there's any wires I can check or there are two blue boxes next to the coil boxes. (Maybe one controls the top two and the other one controls the bottom two) Thanks

 

[Unbalanced]

Re: 125 HP Force L-Drive NO SPARK!!

You are correct. One CD box controls two coils/plugs.
There should be a white wire off the blue CD box that is connected to a terminal strip on the port side of the motor. That is the "kill" wire that is connected to the kill and ignition switch. If that wire is grounded somewhere, that CD box will not fire the two coils.