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It's on a Tecumseh 5 H.P. Snow King on the Husqvarna I just got. It's the screw just above the bowl, to the right.
 

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Two things come to mind: 1. It's the screw that adjusts the idle. Not the idle mixture screw, but the screw that limits how far the throttle cable will travel. Or 2. It's an air flow mixture screw.
 

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tow things come to mind
lefty loosey
righty tighty :D
 

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Discussion Starter #4
I can't seem to find anything from 65ford or doneyboy73. I don't want to mess with it without knowing what it does.
 

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Idle stop. If you look at where it goes through on the other side it makes contact with the throttle butterfly when its at idle.
 

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Discussion Starter #6
I'm referring to the black screw just above the bowl, going into the carb body. Just off to the right. The red screw is the idle stop.
 

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I believe that is the idle air mix screw. If you take it all the way out the back end should be a needle. It takes the place of the main jet needle on those non adjustable carbs, where the bowl nut doesn't have a needle on the back end like older carbs. Most of those I have come across have a black plastic cap over that screw your referring to because they are "non adjustable".
If you want to pull it, count how many turns it takes to tighten it all the way, then you'll know you spot when you reinstall it. Tighten all the way, then back out the appropriate amount.
 

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Idle stop. If you look at where it goes through on the other side it makes contact with the throttle butterfly when its at idle.[/QUOTE

The red arrow, isn't this the idle restrictor screw?

Click me,
IMG_20141018_105830.jpg

I think he may be asking about the yellow arrow screw?
 

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Hello Joe, that is a non adjustable idle mixture screw. Use a pick to remove the plastic cover and the jet is removable for cleaning. A dirty idle restrictor on these emission carbs are the main cause of the engine surging.

Disassembly, Cleaning and Repair of Tecumseh Series 1 Emission Carb 640084B

After cleaning the jet, it gets screwed in snuggly, it is not an adjustment screw. Then pop the plastic cover back on.

The nipple with the yellow arrow is for the primer hose.
 

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Thats the nipple for the primer bulb hose.
The only screw in the picture is the low (idle) speed adjust.
example
 

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It's the screw just above the bowl, to the right.
I should learn to read. I was commenting on the only screw visible in the picture.
Sorry.
I'm not sure now what screw Joe is referring to.
Visible idle speed.
Capped idle mixture
Primer nipple that is no screw at all.

Edit; Grunts reply was not there when I was replying. Everyone knows anything Grunt says, trumps anything anyone else says.:)
 

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It's on a Tecumseh 5 H.P. Snow King on the Husqvarna I just got. It's the screw just above the bowl, to the right.
Actually, just above the bowl to the LEFT.
 

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edit; Grunts reply was not there when I was replying. Everyone knows anything Grunt says, trumps anything anyone else says.:)
Thank you dbert. Everything I say is just my opinion, and sometimes I get lucky.
 

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You win the PRIZE, Big Ed.
Everybody, go to Big Ed's post #8. He has a yellow arrow pointing to the screw I'm referring to. What does it do?
I think those that said that is where the primer bulb hose connects to are correct. Are you sure it is a screw and not just a nipple? Does your engine have a primer bulb on it anywhere? Maybe it is just a plug?
 

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Discussion Starter #15
NEVER MIND IT'S JUST A MATTER OF AN OLD GEEZER GOING BLIND AND A LITLE SENILE.:rolleyes:
 

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Discussion Starter #16
I think those that said that is where the primer bulb hose connects to are correct. Are you sure it is a screw and not just a nipple? Does your engine have a primer bulb on it anywhere? Maybe it is just a plug?
I'm still sitting out here in the garage laughing at myself. Talk about a senior moment.
That's also what comes from working on two different pieces of equipment at the same time and mixing up pictures. Man do I feel like an idiot!:cool:
 
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