1986 Evinrude 110 fuel issue?

[Matt53]

Hello, I have a 110 Evinrude V4 on a 77 Glasstron GT-150. I have taken apart the carbs and blown them out, inspected the gaskets and fuel pump, and checked the needles and seats, but I am still having trouble when I give the boat some gas. I would think with that motor and boat it would come up on plane fairly quickly but it seems to have trouble until it gets up on plane about 10 seconds later. Once on plane it seems to run fine. I have emptied the gas numerous times, and checked spark on all cylinders. Any ideas what could be causing this?

 

[racerone]

Post the actual values after doing a compression test.---Post them here.

 

[Matt53]

Post the actual values after doing a compression test.---Post them here.

Oh ya forgot to mention that, they were 135 132 135 and 137

 

[brodmann]

Unless you purchased carburetor kits, you didn't fully clean the carburetors. In order to really clean those carbs, you have to remove the lead plug (#2 on attached picture), the cover plate (#1) and really clean out those small passage inside there, and remove and clean out the passage on #3 and #7, your jets. It's best to use a compressor and force air throught all passages, If you don't have access to compressed air, using carb cleaner with the straw attched is the next best thing.
At what RPM's is your motor stumbling?
If the motor seems to be running fine, what pitch prop are you using? What are RPM's and speed at WOT?

 

[brodmann]

Sorry, forgot to add the link to the diagram and part listings for your carbs.

https://www.boats.net/catalog/evinrude/outboard/110hp/e110tlcdf-1986/carburetor

 

[flyingscott]

Is this motor new to you?

 

[Matt53]

Sorry, forgot to add the link to the diagram and part listings for your carbs.

https://www.boats.net/catalog/evinrude/outboard/110hp/e110tlcdf-1986/carburetor

I did pull the carbs completely apart, soaked them with amsoil solvent, and blew them out with a rubber tipped blow gun. Don’t have a tach hooked up right now so I’m not sure about rpm. The motor was on a 22’ fishing boat so I wouldn’t imagine it’s a very high pitch. I’m getting about 40 mph out of it right now. I’ll have to check on the pitch this weekend. Thanks for the help!

 

[Matt53]

Is this motor new to you?

Yes the motor is new to me. Tore a guys transom off and went in the water. I got it running the day after it was in the water and only gave $200 for it.

 

[flyingscott]

You have a short boat what the a big motor.

 

[racerone]

Boat should be running about 50 MPH.-----Sounds like it is running on 3 of 4 cylinders.

 

[Matt53]

Boat should be running about 50 MPH.-----Sounds like it is running on 3 of 4 cylinders.

I pulled each plug at idle and it bogged way down, so I know it has spark at idle. When I started it for the first time on the stand I also had to shut it off by pulling plugs because it started revving way up and found out it has spark on three of the four the hard way

 

[Matt53]

You have a short boat what the a big motor.

Do you think the weight could be shoving the stern into the water until it gets up on plane? The front of the boat does shoot way up into the air until it gets up on plane

 

[racerone]

With the trim all the way down the bow would not shoot way up !!

 

[Matt53]

With the trim all the way down the bow would not shoot way up !!

I guess there is a chance I didn’t have the trim ALL the way down that could be causing the rising issue

 

[flyingscott]

With the trim all the way down the bow would not shoot way up !!

Wrong. I actually owned one of those boats. Mine only had an 85 hp on it and it was not an easy planing boat.

 

[Matt53]

I’m also wondering if the fuel pump is supplying too much fuel to the carbs. It was originally a VRO motor but was already removed when I got it. I’ve checked the needles and seats but I do notice that sometimes some gas leaks out of the carbs when I pump the primer bulb, is this normal? Also, do the pulse pumps ever send too much fuels pressure to the carbs?

 

[flyingscott]

Check your carbs specifically needed and seat. What kind of pump did you put on?

 

[Matt53]

Check your carbs specifically needed and seat. What kind of pump did you put on?

I took them apart and cleaned them, looked at the needles and everything seemed fine. The pump was already on it when I bought it, just looks like a standard pump from an OMC v4

 

[flyingscott]

Set your float heights. Are the needls and seats in good condition? Primer working properly? Not leaking? Lever in the correct position?

 

[Matt53]

Floats are closing when level, I believe the primer is working properly, have the red lever facing the body of the primer (correct?), I have noticed that the motor is burning a ton of fuel (I know they are pretty thirsty) but it seems like a float is still sticking even though I’ve had both carbs apart several times. Should a carb leak out gas when you squeeze the primer bulb?