69' evinrude skipping at low idle

tomh59

Petty Officer 3rd Class
Joined
Nov 18, 2007
Messages
98
I just purchased this 25hp. I seems to run fine in the barrel when the throttle
is up a bit. When I ease it back it won't cut out but it starts to skip.

Any thoughts on a fix would be great.Thanks....
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: 69' evinrude skipping at low idle

Do you have the cowl on or off? When were the carbs last rebuilt? If you prime the bulb does it pick up?
 

tashasdaddy

Honorary Moderator Emeritus
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Messages
51,019
Re: 69' evinrude skipping at low idle

check you spark, they will run on one cylinder, they only have one carb, so it would effect both cylinders.
 

tomh59

Petty Officer 3rd Class
Joined
Nov 18, 2007
Messages
98
Re: 69' evinrude skipping at low idle

Thanks for the replies. The cowl was off. The carbs, probably never rebuilt.
I don't really know the history of this motor. Cosmetically is beautiful.
Is a carb rebuild very compicated? I have the shop manual. It seems to
be pretty specific on step by step procedures. The manual is for this motor only.
I'm pretty handy but have never rebuilt a carb so I think it's doable with
a little helps from my friends.
 

tashasdaddy

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51,019
Re: 69' evinrude skipping at low idle

it is as simple as a lawn mower carb, but check the spark first, could be dropping a coil.
 

tomh59

Petty Officer 3rd Class
Joined
Nov 18, 2007
Messages
98
Re: 69' evinrude skipping at low idle

I'm in Mass. heading for sunny Fl. today. I'm going to check for spark
before I hop the plane. IF I have spark in both should I rebuild the carb?
Is that the most logical?

You people are Great!!!
 

tashasdaddy

Honorary Moderator Emeritus
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51,019
Re: 69' evinrude skipping at low idle

you are correct. it's much nicer in Fl today, than there.
 

tomh59

Petty Officer 3rd Class
Joined
Nov 18, 2007
Messages
98
Re: 69' evinrude skipping at low idle

It is starting to get colder here. I don't know how long I'll be able to work
on this outside. I"ll have to drag the hose in and out to keep it from
freezing I guess. I'd like to get it purring for spring shad fishing
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: 69' evinrude skipping at low idle

I dont think you can run that motor in a bucket with the cowl off.
 

tomh59

Petty Officer 3rd Class
Joined
Nov 18, 2007
Messages
98
Re: 69' evinrude skipping at low idle

I'm a novice so could you explain cowl ON cowl OFF diference?
 

tashasdaddy

Honorary Moderator Emeritus
Joined
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Messages
51,019
Re: 69' evinrude skipping at low idle

in a bucket the exhaust comes up around the motor, the carb sucks the air, the motor does not like to breath its own exhaust, just like us. not enough oxygen. also get the leg atleast 1/2 way submerged so the water pump will pickup water, or you will burn up impeller.
 

tomh59

Petty Officer 3rd Class
Joined
Nov 18, 2007
Messages
98
Re: 69' evinrude skipping at low idle

I'll try to get her in a lake around here. I put in a new water pump kit sunday.

Pumps like a champ. I did notice the smoke all around the motor while it was

running. It actually forced me to backaway. The motor probably felt the same way. It couldn't breathe.

Again thanks ,I'm learning with every post. I just know I've found a gem here

and want to get the most out of her. Performance and dependability.
 

tashasdaddy

Honorary Moderator Emeritus
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Messages
51,019
Re: 69' evinrude skipping at low idle

have you replaced the spark plugs?
 

tomh59

Petty Officer 3rd Class
Joined
Nov 18, 2007
Messages
98
Re: 69' evinrude skipping at low idle

No I haven't. It started right up after 2 years of storeage so I didn't think

they were an issue right now. Wrong?
 
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