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Author Topic:   2001 Evinrude 225 FICHT Won't Run Above 2,500-RPM
rodeohog posted 07-31-2010 03:41 AM ET (US)   Profile for rodeohog   Send Email to rodeohog  
I have a 2001 Evinrude FICHT that was running great, then, all of a sudden, would not get [the boat] on plane. [The engine] just lugs in the hole, will not hit high speed. Does a lot of surging but dies back to a low RPM. After changing [the primer] bulb, checking fuel lines, open connector at fuel tank, adding fresh gas, gas additive, etc., it does the same thing. On a couple of occasions it has actually gotten up and ran well, then I stopped for a bridge, and, when trying to continue, [the Evinrude 225-HP FICHT] went back to its get-up-to-speed behavior. That is where it is now. I have read in manual that if the SLOW diode is grounded it will remain in the slow speed, as if it were overheating, and [the manual] suggests [the cause may be] a bad or grounded diode. The manual is very unclear where exactly this diode is and how to replace. I have is an engine that will not go above 2,500-RPM and I believe this diode could be the culprit. Can anyone tell me of another reason for this? Or how to identify this diode and how to replace? Help would be appreciated.


seahorse posted 07-31-2010 09:13 AM ET (US)     Profile for seahorse  Send Email to seahorse     
I don't have a manual for that motor handy but I doubt there is a SLOW diode in the engine wiring harness. That diode is used in carburetor motors without the System Check gauge to isolate the temp switch function and SLOW activation from the other warning circuits.

In FICHT (and E-TEC) motors, the temp, check engine, and no oil alarms are generated inside the ECU or EMM and sent to the System Check gauge through the appropriate tan wire.

The factory 2000 FICHT manual - there was no 2001 manual, just an update booklet - outlines the troubleshooting procedures for lack of power.

I would start at the fuel system checking output pressures at the lift pump and at the fuel rail while the motor is acting up.

A laptop with the diagnostic software can show the engine operating parameters, record engine and sensor info, and selectively disable one cylinder at a time to find which are not producing power.

rodeohog posted 06-14-2012 10:21 AM ET (US)     Profile for rodeohog  Send Email to rodeohog     
I am sorry I am just now posting this, but I did answer it elsewhere with another question. I took it back to where I had bought it and they replaced the fuel pump, some vulgar amount of money. I took it home and it did the same thing, would not get up to speed, linger at 2500rpms no warning lights. I called them then and there and let them hear it and expressed my disappointment that it was not fixed. Took it back and they put on a used oil upload part that did indeed fixed it. Of course I asked did I buy a fuel pump for nothing or what. They replied that these things commonly go out together???? Well, they wound up charging me ONLY for the parts to a tune of over $900. $450 for a used oil uptake part and the rest for the fuel pump. But they charged no labor. That indicated to me that they, well, felt a little guilty what with my traveling 45 miles one way four times and all. I felt given the no labor charge it was even. These guys are really very honest from my past experiences. As one guy said "If you can get that done without labor, run, Forrest, run.
Powergroove803 posted 06-14-2012 07:07 PM ET (US)     Profile for Powergroove803  Send Email to Powergroove803     
On some(maybe most) direct oil injected engines, when the oil level gets to a certain low level, the motor cuts back to half power or less.
Just FYI, I have a 1998 FICHT 150, one of the "anchors" that sunk the company, but it runs beautifully so far.
lizard posted 06-14-2012 09:14 PM ET (US)     Profile for lizard  Send Email to lizard     
Powergroove- That is interesting. Recently, I left my dock for a shorter outing, with what I considered to be adequate oil in my tank. Mid-day, while I was a few miles offshore, the oil light came on. I had no additional oil onboard. Kelp was troublesome and wind and swells were picking up. I ran it home. I experienced no loss of power or speed. Fortunately, I did not blow my motor. There was still about 1=2" of oil in the tank, so the oil sensor must be sensitive. Added oil, problem solved. My motor is a 2001 FIcht 115 hp and I have not had any problems with it before or since.
Powergroove803 posted 06-15-2012 01:45 PM ET (US)     Profile for Powergroove803  Send Email to Powergroove803     
Im not sure what level it cuts back at, I have not experienced it and I was pretty low this past week as well. There is another post that talks about the "Gaurdian" system and how it restricts RPM's, not sure if the FICHT's have the gaurdian system, but same principle.
Peter posted 06-16-2012 08:48 PM ET (US)     Profile for Peter  Send Email to Peter     
There are two oil related warnings on a FICHT outboard.

A "Low Oil" warning will NOT cause the motor to run in the SAFE mode. The "Low Oil" warning usually sounds off when the tank level gets down to about 1/3 to 1/4 full.

A "No Oil" warning WILL cause the motor to run in the SAFE mode.

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