jeepguyw/boat
New member
yesterday I had the boat running and noticed that cyl 3 and 4 where not firing. I checked that the coils where good off cly1 cdi box and got spark out of the coil packs. so i had a 1988 125 cdi boxes and coils and hooked that up. got no spark on all cyl's now and so I put the 120 cdi boxes back on and no spark on all coil packs. I checked trigger and stator with meter and got 47 on trigger and got 700 on stator for ohms they are good. I pulled the black yellow wire on the stop location and still no spark. i cant think that both boxes on both systems would go bad that fast at the same time. any help would be great.