I have a 2008 ETEC 200 hp - I used to get at least 70 mph (on this prop) but began having problems. Took it in to a certified mechanic and had the EMM replaced, the #5 injector was replaced and the #6 was corrupt and corrected. Now it starts fine but is missing and my top speed with two of us in the boat is only 48 mph. With the live well filled, it won't get up on plane. Thanks in advance for any ideas.
04-20-2015 01:42 - edited 04-20-2015 01:43
I would assume that the engine rpm is now much lower at 48 mph than it was at 70 mph which normally means that one or more cylinders are not putting out power or the throttle components not working correctly.
Take it back to the dealer who did the injector replacement and ask to have the tech go for a test ride with you.
"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.