recently purchased a 1998 intruder 150 ficht, fished a couple electric only and idle only lakes, engine quit and dealer found bad ignition module, had no fire , none available , rebuild only so did some research and found that the .68 mf capacitor in the module is a common failure . so to save some time an money , ordered the capacitor and installed in module, reinstalled module and engine fired up and idle sounds real good on muffs, put in water to test run and dont have enough power to get on plane, thinking i may have a 2nd issue, any advise
For a lack of power you have to determine if it is a mechanical, fuel, or electrical issue - or a combination. Start with a compression test then follow the troubleshooting steps outlined in the factory service manual. Check with outboardbooks.com
Your other avenue is to have a trained tech check it out.
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.