Please help 1989 50 hp Evinrude wont run and horn sounding

[Valsar]

Having trouble with a 1989 evinrude 50 hp outboard Model CE50BELCUD

Problem 1: engine chokes out, ball is soft, will idle for a bit then quit and require choke and full throttle many times before it goes for a bit.

took apart the carb, cleaned it, replaced a fuel hose since it was rotted, and re attached a vacuum hose that was disconnected on the bottom carb.

upon reassembling and trying to see if any results came, it still chokes out, but now the horn sounds from the throttle. I then looked to see it any wires were damaged and saw the rectifier wire fried. Fixing this I'm still having these issues.

what can this be ??

 

[flyingscott]

do a compression test.

 

[jakedaawg]

I concur, that's great advice...stop trying to run it. Compression test is 1st step.

 

[Valsar]

Thank you gentleman, what shall I look for compression wise when doing this

 

[Valsar]

140 on the compression test

 

[Valsar]

I concur, that's great advice...stop trying to run it. Compression test is 1st step.

Shows 140 on the test? It seems from what I read, this is normal

 

[jakedaawg]

Next step would be an open air gap spark test on both cylinders. Set the tester to 7/16". Assuming that's good:

Mix 50:1 in your tank for the rest of the trouble shooting in case you have a VRO issue.

Is the alarm a solid tone? On that motor it represents an overheat condition. Verify that it is not overheating. The fact that water comes out the tell tale says little. You should be able to hold your hand on top of the head while running. An infrared temp gun should show 140's. Of not replace impeller and or h20 pump. If the old impeller has chunks missing back flush motor while the lower is off. In through the thermostat housing and out the water tube.

of course you will need to repair bad/burnt wires and replace rectifier if bad.

if you dont have the factory manual cdielectronics.com has a good troubleshooting guide for the electrics.

 

[jakedaawg]

Another thought...if the burnt wires include a tan wire then that could be the source of the alarm if it shorted to ground. Again, its imperative that you do all mentioned above. A hot motor burns wires and ruins all sorts of stuff. Other things can be the cause but an overheat is most likely.

 

[flyingscott]

That is great compression. Post a pic of this vacuum line on the bottom of the carb because there should not be one.