I have a 25 HP Johnson and I lose spark on onw side of my engine at times. I cant even get up on plane. Then it will start again and it will run fine. What would cause me to loose spark to half my cylenders. Thanks
Sounds like a bad powerpack or ground to the pack. You didn't say what year or model number so everyone will just be guessing at this point. I don't even know if yours has a powerpack or not.
hello<br /> could be a pack, a coil or possibly a loose trigger wire, time for a session with a peak reading multi meter. check inputs to and from the pack.