'79 Evinrude (85hp)-Engine bogging when warm & low RPM only (ISSUE FOUND) y

[CaneCutter79]

Re: '79 Evinrude (85hp)-Engine bogging when warm & low RPM only

Re: '79 Evinrude (85hp)-Engine bogging when warm & low RPM only



I can't get my analog DVA to pickup the voltage output of the stator.
I have the red test lead in the red AC port and the negative lead on the -COM for ground.

I put the black test lead on the brown/yellow wire coming from the stator and the red test lead on the brown wire. Turn the motor over and I get no voltage reading. I have tried multiple settings on the DVA meter (AC side). I tried it with my multimeter and got 132v. It shoudl be 150 but I was using a multimeter. I read online I need to multiply that reading by 1.41 to get peak voltage but that would put me over 180v so that doesn't seem correct.

Am I missing something? This is driving me nuts. I just want to test my stator output so I can eliminate it and move on to testing the coils and packs.

 

[CaneCutter79]

Re: '79 Evinrude (85hp)-Engine bogging when warm & low RPM only

Re: '79 Evinrude (85hp)-Engine bogging when warm & low RPM only

Well.......this solved my engine problems. The timer base was lagging and sticking. It wasn't moving like it's supposed to when the throttle lever moves forward. This explains all of the problems i was having. I wanted to post the result of this problem in hopes that it helps someone else one day. I was told this is a common problem yet no one thought to have me check for it. It's so easy to look for other things yet this is a common occurence and explains all my symptoms.

I had to remove the flywheel completely and then remove the stator and timer base. I am NOT Happy that Evinrude felt it was a good idea to use a cheap plastic retainer ring to keep the timer base in place and the plastic retainer ring is where the friction occurs between the timer base and the motor. THe grease that was applied must have been too thick and it gummed up and that was the problem.

I cleaned it off and used 3-N-1 oil for electric motors (thin lightweight oil). The timer base lever now operates smoothly. My throttle response has NEVER been smoother. All becuase the timer base was lagging behind and not moving forward with the rest of the throttle lever.

Thanks to all for your help! I appreciate all of the posts and guidance!