1995 Evinrude 90Hp - Low power when in gear, but engine revs in neutral

[barryvj]

Hi Guys,

Had a great day on the water yesterday, except on the return at low tide. I trimmed the engine to prevent polishing my prop more than it already is, but once in the deep water again, with the engine trimmed back down, I could not get any power. At around 2500 RPM the engine would bog down. I put the shifter in neutral to see if it was an engine limitation, but the engine rev'd right up without any issues. When I put it back in gear, I still couldn't get any power. Everything worked great all day at high and low speeds.

Since this happened immediately after running trimmed I assume it is likely a trim issue. The TILT limits RPM of the engine, so if this switch was broken, I still wouldn't be able to rev up the engine in neutral...right?

Thanks for your help.

Vin

Engine: E90TLEOR

 

[Bob_VT]

Re: 1995 Evinrude 90Hp - Low power when in gear, but engine revs in neutral

Maybe you dropped a spark from 2 cylinder's.......... a V-4 will "sound right" but may not be firing on all cylinder's........ get a timing light to check for spark. A close inspection of the plugs should tell which are not firing

 

[barryvj]

Re: 1995 Evinrude 90Hp - Low power when in gear, but engine revs in neutral

Thanks for the advice Bob!

I took a look at the plugs and all four looked pretty gummed up and oily. I cleaned them and took the boat back out on the water. It started immediately and when I hit the throttle to go on plane, the engine hesitated and then surged forward back to its normal self! Everything was fine from then on.

I really thought that this was a fuel problem so your advice really helped.

Thanks again.

Vin