No spark on right side of motor

[bmstang]

I hope somebody can help. I have 78 235hp evinrude v6 that was running fine then all of a sudden it wouldn't go over 2000rpm. I checked for spark and the right side all 3 cylinders had very little or no spark any clue what the problem could be. I was thinking coil packs but it's all three at once that has me skeptic any thoughts would be great thanks

 

[chaparall villain 2]

Re: No spark on right side of motor

did you check to see if you had water in the right bank of cylinders ... maybe blown head gasket .... could cause all coil packs on that side to go

 

[bmstang]

Re: No spark on right side of motor

I pulled plugs did not see anything abnormal

 

[mrcj001]

Re: No spark on right side of motor

No spark on One Bank:
1. Swap the power packs from side to side and see if the problem moves. If it does, the power pack not sparking is likely bad.
2. Check the trigger leads and compare the readings for both sides. The readings should be very close.
3. Disconnect the stop wires and separate them. If the pack that had no spark now has spark, replace the pack that initially had
spark.
4. Check resistance between the Brown/Yellow and the Brown wires. You should read approximately 450-600 ohms. DVA (peak
voltage) should be 150v or more while connected to the power pack for each.

 

[tashasdaddy]

Re: No spark on right side of motor

you have a power pack for each side. change the bad power pack.

 

[bmstang]

Re: No spark on right side of motor

Thanks for the feedback i will look into those leads