25 hp Evinrude fuel pump isn't working

eddie_m

Cadet
Joined
May 6, 2010
Messages
15
My 1977 25 hp Evinrude stopped pumping fuel, the motor will stay running if i pump the gas line bulb . How does the fuel pump work? Thanks
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: 25 hp Evinrude fuel pump isn;t working

Re: 25 hp Evinrude fuel pump isn;t working

You can get a kit and rebuild it. Its pretty easy and not very expensive.
 

Monte1961

Lieutenant Junior Grade
Joined
May 8, 2011
Messages
1,180
Re: 25 hp Evinrude fuel pump isn't working

My 1977 25 hp Evinrude stopped pumping fuel, the motor will stay running if i pump the gas line bulb . How does the fuel pump work? Thanks

It works off the lower cylinder by pulsing. If the diaphram has a tear, small hole or has gotten hard over time, it won't work properly. Hope that answers your question!
 

eddie_m

Cadet
Joined
May 6, 2010
Messages
15
Re: 25 hp Evinrude fuel pump isn't working

So a rebuild kit is the way to go in this case, i will try this and see what happends. Thanks Alot
 

eddie_m

Cadet
Joined
May 6, 2010
Messages
15
Re: 25 hp Evinrude fuel pump isn't working

i rebuilt the pump and its still not pumping so i bought a new pump an still pumping weak?
 

Monte1961

Lieutenant Junior Grade
Joined
May 8, 2011
Messages
1,180
Re: 25 hp Evinrude fuel pump isn't working

what do you mean by weak? If motor will run good at wot, then ok! post back and let us know!
 
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