1990 Evinrude 25 HP E25RESB Low idle problems

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

when I do use it (I really never have to) when I pump it I see small air bubbles going in with the gas in the little tube to top of the carb.
 

racerone

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

Pull the wee line off the carburetor when the motor is running.
 
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tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

When the motor is running that line does not move gas....I can tell because there are tiny air bubbles in the line when I press the primer.
 

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

Outboard Motor Repair- 35 evinrude won't idle

This article has me thinking....I do not remember seeing part #10 when I tore the carb apart for cleaning....there was no o-ring inside of there...also part #13 says it is also an o-ring...I think there might have been a washer there...

http://www.**********/parts/search/BRP/EVINRUDE/1990/E25RESB/CARBURETOR/parts.html

I ordered a carb rebuild kit Sunday and it should be here Friday. Would part #10 and #13 be in it?
 

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

Dumb question but does this motor have a fuel filter? I never saw one while working on it.
 

Bosunsmate

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

front part of fuel pump has it
 

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

Where do you adjust for RPM on this motor? If you can tell me a part number that would help tremendously...Thanks

http://www.**********/parts/search/BRP/EVINRUDE/1990/E25RESB/parts.html
 

Bosunsmate

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

Where do you adjust for RPM on this motor? If you can tell me a part number that would help tremendously...Thanks

http://www.**********/parts/search/BRP/EVINRUDE/1990/E25RESB/parts.html

what do you mean?
 

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

increase idle without opening butterfly
 

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

does this model have a timing advance screw? Also does anyone know what the timing is supposed to set to?
 

James R

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

Sounds like air is being sucked in through the primer. When the motor tries to stall try spraying a little fuel mix into the carb throat.
If it picks up you could have air leaking in or the idle jet is blocked.
 

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

I jumpered a spark tester up while running the engine today and it appeared that the bottom plug was misfiring. The spark was not as good as the top plug either. Not really sure how to trouble shoot from here.
 

tom071984

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Re: 1990 Evinrude 25 HP E25RESB Low idle problems

Where is the idle adjustment screw on this engine? It is a tiller steer, pull start...thanks
 
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Did you ever resolve this?? I am having trouble with my '92 E25ELENS

Runs at full throttle all day long but won't idle any more.
 
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