I have a 2007 stratos with the 200HO it was rebuilt after a meltdown about 4 years ago when I bought the boat it would go about 70 mph (i never really watched the rpm) after the rebuild and going throught the "used car" thing fixing stuff, the computer went out so i switched mechanics and it has been perfect EXCEPT it barely hits 5000 rpm I let it go and just enjoyed the boat being dependable I have discussed with the mechanic these things and he doesnt know the motor runs great but im a guy and just want it to do what it is supposed to do There have been no prop changes or anything it feels like a governor that it wants to go but it's being held back lie more fuel needed or something it is serviced like it should be non ethanol gas any ideas
03-10-2019 08:41 - edited 03-10-2019 08:44
There could be a number of things causing lower rpm than normal. 70 MPH with a 200 HO is remarkable. What propeller, top rpm, boat model, etc did you have to get that speed?
What is your engine model number?
Be sure your mechanic is E-TEC factory trained, if not it may be better to find an experienced one.
The basics are :
fuel pressure test at all speeds
air bubble monitoring with vacuum gauge
linkage, throttle, and TPS inspection
cylinder balance test at speed.
Engine transom height
"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.
thanks Bill. I will have to look up the engine model etc this is a 2007 stratos 294xl it is tested frm the factory(this model) to do the 70 mph it was a recommended etec shop though I did have to leave them seemed they had the boat too much my new mechanic is pretty good maybe not etec known but has done well for me in other ways with the same boat Its still the same prop i believe there is a simple thing(hoping) it dfeels like the motor is being held back like a governor maybe more fuel im not a mechanic for these days i played with cars growing up but these computers run everything i just need to find the right person to unlock my 5mph lol
Mr Bill my prop is 141/2x26 modelE200DHLSUA my rpm is now 5000 maxxx the motor is supposed to hit around 5500. I it maybe 64-65 gps now that loss of rpm's is the boat out of the water and past the chine walk I miss it