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Author Topic:   missing in motor at idle (evinrude v4)
shoctor posted 05-20-2003 11:06 PM ET (US)   Profile for shoctor   Send Email to shoctor  
Motor misses when in gear and will eventually stall out. Had the motor retimed by local mechanic so that can be eliminated. Motor runs like a watch at higher rpm but when throttle back to idle in gear or just above will miss and eventually conk out. Have tried on stand alone tanks as well as built in with separate lines. Any suggestions or send to mechanic again to figure out?
shoctor posted 05-21-2003 02:34 PM ET (US)     Profile for shoctor  Send Email to shoctor     
come on someone must have a suggestion
etstmeb posted 05-21-2003 03:16 PM ET (US)     Profile for etstmeb  Send Email to etstmeb     
Shocker, I had this issue with a '94 Johnson--looked and looked (read, payed and payed) Anyway it turned out to be a small carb gasket break. Hope this is it--it was an easy fix and cheap once diagnosed.


JBCornwell posted 05-21-2003 04:07 PM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
You have a clogged idle circuit in at least one carb.

Red sky at night. . .

Ponchee posted 05-22-2003 01:57 PM ET (US)     Profile for Ponchee  Send Email to Ponchee     
I agree with JB.

If all else checks out and the plugs are in good condition.

The idle circuits are restricted or clogged.
It makes them cough and spit on occassion and the engine will feel flat or vibrate just off idle.

Bigshot posted 05-22-2003 10:44 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
OMC does not have an idle adjustment per say. They use the close butterflies to draw in air through an idle circuit which is proobably clogged. Although she runs good at speed you are not doing it justice and carb(s) need attention. Try a bottle of Techron or Berryman's B-12 in the tank for starters and mix it heavy. This should clean out some gunk but idle circuits may need a rebuild. On that you are looking at 2 hours work of removing/installing carbs and soaking in carb cleaner for 48 hours and blowing out jets with air when done....should do the trick.
shoctor posted 05-23-2003 12:56 PM ET (US)     Profile for shoctor  Send Email to shoctor     
Thank you gentlemen will be giving it a shot so to say and see what happens.

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