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Topic: Snow blower adjustment

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Snow blower adjustment (1/18)
 1/18/14 2:45pm
Adam WartellLifetime Member
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Eagleville, PA - USA

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I replaced the carb, changed the oil, fuel, fuel filter, and belts all in an effort to get this thing to run right.  It mostly does, but I can not move the choke to OFF even after the engine is hot.  I have to put it on FULL to start it and immediately move it to HALF.  If I move it any lower than half the engine will shut off.  Below is a video of it running with HALF choke and hot.   

Please tell me why the squarish silver thing in the middle of this video (I think it is the throttle control) moves by itself making the engine speed faster and slower.  This throttle is linked by a metal rod to a lever. That lever is connected by a spring to the manual throttle (the rabbit/turtle) control on the outside of the carb cover.  When the engine is off, moving the manual throttle control makes this throttle on top of the carb move (open or closed). I leave the manual throttle lever on "rabbit" when I start it.  If I move it down all the way, the engine will shut off.  If I move it half way, nothing seems to happen.

This is a John Deere TRS22.  Any advice would be great!

Here's the video:


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Re: Snow blower adjustment (2/18)
 1/18/14 3:10pm
corvette440hpLifetime Member
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Adam, the squarish metal part I believe is the engine governor. I believe that you still might need to adjust your throttle control to insure that you reinstalled it properly to get the full travel of the carburator. Also you need to insure that the choke lever will totally close the choke when you are at full choke position. Just for reference, my snow blower only likes to run in cold weather with the choke in the mid position. If I open it fully the engine stalls out. Remember that's in cold weather. I hope this might help.  

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Re: Snow blower adjustment (3/18)
 1/18/14 6:00pm
manget1Lifetime Member
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Indianapolis, IN - USA

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Adam, I think the key is not to try to make the kind of adjustments Terry Moore did a couple of years back!
 
Sorry, had to...


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Re: Snow blower adjustment (4/18)
 1/18/14 6:01pm
Sarge81Lifetime Member
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First is there a screw on the bottom of the float bowl? That's the round bowl shaped thing on the bottom of the carburetor. Some have a screw and some have a plain brass nut holding the bowl on. 

If it has a screw at the bottom, gently turn the screw in until it stops. Back it out 1.5 turns. If it doesn't have the screw it's a fixed jet, no adjustments.

The tiny screw on the side of the carburetor just above the float bowl (not the screw with the red spring in the video.) Turn that in gently then back it out 1.5 turns. 

This will get you a baseline adjustment. Try starting it. If it starts and idles to fast you may want to back off of the screw with the red spring in the video. That is the idle screw. It looks to me in the video it's cranked it kinda far. If you look down the carb past the choke blade to the throttle blade it shouldn't be hardly open at all. 

If you get it started and idling. Let it warm up. Then turn the tiny screw above the float bowl in until it stutters or stalls. Back out screw a little bit and restart. Turn it out until it smooths out. This will set the idle air fuel mixture.

Run the engine wide open throttle. Turn the screw on the bottom of the float bowl in until the engine stumbles. Then turn the screw out until the engine stumbles again. Set that screw in-between the points of where it stumbled in and out. The engine should be running smoothly at wide open throttle then. That will set the power adjustment. 

Here are a couple good videos that explain things a little better. 



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Re: Snow blower adjustment (5/18)
 1/19/14 12:19am
KDADDY79
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Dutchess County, NY - USA

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That screw at the bottom of the float bowl in the carb (that Sarge just mentioned) has been the culprit with my snow blower a few times.

I've had luck removing it and checking to see that both tiny pass thru holes in it are clear. Old / dirty gas can clog them. I clear them out using a single piece of wire from a wire brush.

Then follow sarge's instructions after re-installing the screw. 
Re: Snow blower adjustment (6/18)
 1/20/14 8:38am
Adam WartellLifetime Member
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Hey guys. I appreciate the help, but I still have one question. Why does that throttle thingy move by itself as it is idling. Is it supposed to do that? 

Looks like I'm going to get to use the thing tomorrow. 4-7" expected to fall.


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Re: Snow blower adjustment (7/18)
 1/20/14 12:31pm
Sarge81Lifetime Member
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That throttle thingy isn't supposed to move causing the engine to surge. The only time its supposed to move is when you move the throttle to speed or slow the engine speed. Or when you start getting into heavy snow the governor (which part of it) is that rod thingy connected to the throttle will move the throttle automatically to keep the engine speed up in the "power band."

If the engine is still surging there is either a bit of dirt in the carburetor or it's not totally adjusted properly. 

Too bad I didn't live closer to you. I'd have that little Tecumseh engine singing. 


|UPDATED|1/20/2014 9:31:58 AM (AZT)|/UPDATED|


______________

GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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Re: Snow blower adjustment (8/18)
 1/20/14 1:51pm
Adam WartellLifetime Member
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Sarge81 said: That throttle thingy isn't supposed to move causing the engine to surge. The only time its supposed to move is when you move the throttle to speed or slow the engine speed. Or when you start getting into heavy snow the governor (which part of it) is that rod thingy connected to the throttle will move the throttle automatically to keep the engine speed up in the "power band."

If the engine is still surging there is either a bit of dirt in the carburetor or it's not totally adjusted properly. 

Too bad I didn't live closer to you. I'd have that little Tecumseh engine singing. 





You always like a nice drive!  Come on down! :D
Thanks for the help.


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Re: Snow blower adjustment (9/18)
 1/20/14 3:45pm
dads2vetteLifetime Member
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Adam Wartell said:
Sarge81 said: That throttle thingy isn't supposed to move causing the engine to surge. The only time its supposed to move is when you move the throttle to speed or slow the engine speed. Or when you start getting into heavy snow the governor (which part of it) is that rod thingy connected to the throttle will move the throttle automatically to keep the engine speed up in the "power band."

If the engine is still surging there is either a bit of dirt in the carburetor or it's not totally adjusted properly. 

Too bad I didn't live closer to you. I'd have that little Tecumseh engine singing. 





You always like a nice drive!  Come on down! :D
Thanks for the help.



Cool, sounds like a road trip, I'll bring mine along since mine is doing the same thing!

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Re: Snow blower adjustment (10/18)
 1/20/14 9:06pm
Sarge81Lifetime Member
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WEST SENECA, NY - USA

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dads2vette said:
Adam Wartell said:
Sarge81 said: That throttle thingy isn't supposed to move causing the engine to surge. The only time its supposed to move is when you move the throttle to speed or slow the engine speed. Or when you start getting into heavy snow the governor (which part of it) is that rod thingy connected to the throttle will move the throttle automatically to keep the engine speed up in the "power band."

If the engine is still surging there is either a bit of dirt in the carburetor or it's not totally adjusted properly. 

Too bad I didn't live closer to you. I'd have that little Tecumseh engine singing. 





You always like a nice drive!  Come on down! :D
Thanks for the help.



Cool, sounds like a road trip, I'll bring mine along since mine is doing the same thing!

Yes I do enjoy a nice drive…in the spring/summer/fall. My aching back doesn't do long winter drives well. I drive one of those very large dump trucks plowing town roads all winter. They pound the heck out you. Otherwise I'd be more than happy to take a run out your way. 
You could ship the carb out to me and I could go through it if you want. I just did 2 carbs for Tecumseh snowblower engines this winter season so far. Just cover parts and shipping. 

Dave, now your around the block from me. lol. If you need help with yours just give me a holler. 



______________

GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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Re: Snow blower adjustment (11/18)
 1/22/14 12:02pm
Adam WartellLifetime Member
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Eagleville, PA - USA

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So, I did not get a chance to attempt to adjust it correctly before using it yesterday. It was mostly fine, but the longer I used it, and the more clogged up the auger and chute got, the worse it behaved. It would sputter and "backfire" and get near stalling.  I watched the video you posted, and plan to watch it again and use it as my guide, perhaps this Saturday, to try and get it to run right.

Thanks!


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Re: Snow blower adjustment (12/18)
 1/22/14 9:19pm
dyoes
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What's this "snow" stuff you speak of...




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Re: Snow blower adjustment (13/18)
 1/27/14 11:46am
Adam WartellLifetime Member
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Eagleville, PA - USA

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I got to adjusting it this weekend. I couldn't seem to get it adjusted quite right. A guy who I know from Cub Scouts happen to be driving by my house when I was working on it, and he stopped to say hi.  He has experience with these engines and carbs, so he offered to help.  He got it running pretty good for me. I was able to use it for a snowfall we had Saturday. It was a light snowfall, though. I'll be interested to see how it performs for a heavy snowfall.

Thanks for the help guys!


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-Adam Wartell
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Re: Snow blower adjustment (14/18)
 1/27/14 1:52pm
Adams' AppleLifetime Member
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Adam...check THIS out....it will solve all your snow blower problems....guaranteed....Wink

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Re: Snow blower adjustment (15/18)
 1/27/14 1:54pm
indy99
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Adams' Apple said: Adam...check THIS out....it will solve all your snow blower problems....guaranteed....Wink


Only if it comes with a free slave.


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Re: Snow blower adjustment (16/18)
 1/27/14 1:57pm
Adam WartellLifetime Member
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indy99 said:
Adams' Apple said: Adam...check THIS out....it will solve all your snow blower problems....guaranteed....Wink


Only if it comes with a free slave.


Not when I have herniated discs and am not supposed to shovel.  So, Tongue

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Re: Snow blower adjustment (17/18)
 1/28/14 9:47am
Sarge81Lifetime Member
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Adam Wartell said: I got to adjusting it this weekend. I couldn't seem to get it adjusted quite right. A guy who I know from Cub Scouts happen to be driving by my house when I was working on it, and he stopped to say hi.  He has experience with these engines and carbs, so he offered to help.  He got it running pretty good for me. I was able to use it for a snowfall we had Saturday. It was a light snowfall, though. I'll be interested to see how it performs for a heavy snowfall.

Thanks for the help guys!


Cool!!! Thumbs Up

My 13hp Ariens has been getting a lot of use this season. Since my back is shot, I only shovel the light fluffy stuff and the front porch. 


______________

GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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Re: Snow blower adjustment (18/18)
 1/28/14 6:11pm
tb2k82ceLifetime Member
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Adam that is just mean spirited.  I do agree and almost fell out Beerof my chair laughing.
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