Onnawata

Runs fine at speed, doesn't like to idle. Real PIA while docking.
Replaced plugs and fuel filter. Any advice?

Thanks,

O

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'78 Robalo 23' CC w/'95 Johnson 225

A1 Outboard

Basic troubleshooting has to be performed to check the motor's condition-compression, spark intensity, carburetor condition, engine temperature, linkage adjustments, timing, etc.

This information is found in the factory service manuals.

Most idle problems are from stale fuel deposits that plug up or restrict the passageways inside a carburetor and/or gummed up recirulation valves and fittings. This usually shows up in the spring during one of the first few runs of the season. Not winterizing the motor properly and not using a good fuel conditioner are common causes.

IF you are mechanically inclined and have the tools, literature, and understanding of the motor, go for it. If not, hire a trained professional who specializes in your particular motor.

__________________
Home Of the Finest Rebuilt outboards
4STROKE/2STROKE REPOWERS/ REMANUFACTURED/USED
Deland Fl/West Sunbury Pa /Atlanta /Portsmouth,Va/Ft Lauderdale
call toll free 1 877 9832537

Onnawata

Thanks, A1
I'm leaning toward a fuel prob, since this past winter was the first time the engine (and boat) has ever been winterized. To start this Spring, the fuel filter and bowl had quite a bit of water and questionable looking fuel. A new filter and the engine seemed to run fine. But after a day's run, back to the same problem (won't idle) again. Could it be more of the same? More water in the fuel?

Topped off the tank (110g) and added StarTron stabilizer before winterizing last Fall.

O

__________________
'78 Robalo 23' CC w/'95 Johnson 225

Onnawata

Checked fuel in filter bowl. Looks normal.
Back to the drawing board.

O

__________________
'78 Robalo 23' CC w/'95 Johnson 225

Onnawata

Checked fuel in filter bowl. Looks normal.
Back to the drawing board.

O

__________________
'78 Robalo 23' CC w/'95 Johnson 225

A1 Outboard

Now that you tell us that there was water and trash in the fuel, remove the air box and unscrew the brass "plugs" on the bottom of each carb and let the bowls drain. Squeeze the primer ball a few times to help force out any water or debris from the carbs. As long as the o-rings are in good shape, re-install the plugs. See if that helps your idling. Be sure to use a lot of rags to catch the drained fuel, and do the job outside with no smokes, flames, pilot lites, etc. around.

__________________
Home Of the Finest Rebuilt outboards
4STROKE/2STROKE REPOWERS/ REMANUFACTURED/USED
Deland Fl/West Sunbury Pa /Atlanta /Portsmouth,Va/Ft Lauderdale
call toll free 1 877 9832537

Doug E. Fish

I'm having a similar problem with a '98 225 except mine runs fine at ldle in gear but dies when you put it in neutral.

Onnawata

Thanks, A1, I'll try this.
And I plan to run the Seafoam Deep Creep application to de-carb the engine.
Hopefully, this will solve the problem.

O

__________________
'78 Robalo 23' CC w/'95 Johnson 225

A1 Outboard

Start a new post so you do not hijack this one and confuse the issue.