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Max Online: 36273 @ 01/23/13 02:34 PM
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#11824544 - 09/12/16 11:07 AM 1979 25hp evinrude misfire while cold
spacemonkey Offline
Outdoorsman

Registered: 06/02/10
Posts: 60
Ok so I have a 2 cylinder, 1979 25 hp evinrude that is in pretty good shape and not a lot of use on it. It was stored unused for many years. I recently rebuilt the carb, has brand new plugs, new fuel pump, new coil packs, new power pack, and all new fuel lines. It has been running great for months, but the last 2 times I've used it after cold cranking it the engine bumps and sputters like its missing. If I put it in gear and take off it will quit. Once warmed up it runs fine at idle. I'm kind of at a loss of what to troubleshoot. Any ideas?

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#11825154 - 09/12/16 04:38 PM Re: 1979 25hp evinrude misfire while cold [Re: spacemonkey]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6482
Loc: texas
What kind of plugs did you put in it?

If they are not champions you may try to find the correct part number Champion plugs. Evinrudes have been known to be picky about it.

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#11825413 - 09/12/16 07:21 PM Re: 1979 25hp evinrude misfire while cold [Re: redchevy]
spacemonkey Offline
Outdoorsman

Registered: 06/02/10
Posts: 60
Originally Posted By: redchevy
What kind of plugs did you put in it?

If they are not champions you may try to find the correct part number Champion plugs. Evinrudes have been known to be picky about it.


I'll have to check tomorrow. I can't recall what they were. I think they were champion but I'm not 100 percent on that

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#11827489 - 09/13/16 08:37 PM Re: 1979 25hp evinrude misfire while cold [Re: spacemonkey]
Lake Fork Guide Marc Mitchell Offline
TFF Team Angler

Registered: 10/10/06
Posts: 4039
Loc: Sulphur Springs TX
Check the reeds if it has them could be a cracked reed.
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