Dies when cold

[les skymo]

My 1977 115 Evinrude runs great when it's warmed up but when fishing a tournament in between fishing spots it will bog down and shut off before half throttle untill warmed up, makes it hard to gun & run, any way to fix it?

 

[jtexas]

Re: Dies when cold

Unless you're stopped long enough for the motor to cool down (more than 2-3 hours-- not what I'd call a run & gun offense), then I think your problem might be with warm starts. Carb float valves get worn down, let a little fuel seep through when you stop, flood the motor just a bit. Lifting the hi-idle lever alleviates the symptom by advancing the timing and letting more air through. It's burning off the excess gas rather than "warming up."

If that's what's happening, carb rebuild with new kits will fix ya right up.

 

[les skymo]

Re: Dies when cold

Thanks Admiral, I'll give that a shot they probably neeed it anyway. Could anyone tell me what the float level setting would be and how to measure it? Sorry don't have a manual yet.

 

[jonesg]

Re: Dies when cold

Order the shop manual below, I have a 1994, can't be much use to you.
www.outboardbooks.com

 

[jtexas]

Re: Dies when cold

make the float hang parallel with the carb body when held upside down. that method has always worked for me.

 

[les skymo]

Re: Dies when cold

Thank you very much, I have looked through the post and got some helpful info just want to be sure, the next step is a manual but as an old auto mech. talking to old pro's can lead to some tricks of the trade you will never find in a manual.

 

[emdsapmgr]

Re: Dies when cold

An aerosol carb cleaner works well when blowing out the passages in the upper carb body. Gets any debris or dried fuel out of those circuits.

 

[jonesg]

Re: Dies when cold

Thank you very much, I have looked through the post and got some helpful info just want to be sure, the next step is a manual but as an old auto mech. talking to old pro's can lead to some tricks of the trade you will never find in a manual.

carb rebuild video.
http://www.youtube.com/watch?v=o5cxBMDezuU&feature=related

 

[les skymo]

Re: Dies when cold

Watched the video got me 2 carb kits and some carb cleaner rebuilt my carbs and BAM that fixed it, I payed special attention to the float level and used a little pocket level about the size of a pencil to level the carbs then level the floats, lay that level on the float crossways also had one a little twisted they bend real easy. Thanks again guys.