1974 Ariens 922006 HS40 won't run - Snowblower Forum : Snow Blower Forums
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post #1 of 37 Old 12-05-2015, 07:02 PM Thread Starter
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1974 Ariens 922006 HS40 carb adjustment & leak?

Hey guys, I just got this for $25, it's in good shape and I can start it but it won't run. If I pull the plug and poor a little fuel in and replace the plug it will fire. I also removed the carb/heat cover and shot some starter fluid into the carb and it fired.

I drained the fuel (he said it was about 3-4 years old) and added fresh. I am learning these small engines but it seems like it isn't getting fuel. Any suggestions? Could it be something gummed up in the carb?
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Last edited by Manfjourde; 12-09-2015 at 10:32 AM.
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post #2 of 37 Old 12-05-2015, 07:07 PM
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clean the carb ( get a kit) and fuel tank, i would also suggest replacing the fuel lines with corn juice resistant stuff if it hasnt been done.

24 " 1967? Ariens Sno thro
28 " Ariens Sno Tek
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post #3 of 37 Old 12-05-2015, 08:24 PM
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Good idea on replacing the fuel line. You can also pull it off at the carb and see if gas comes out. Might be the line is plugged.
It shouldn't have one but you might also check under the tank to see if there is a fuel shut off.

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Make sure the windows are up before the snow plow goes by !!

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post #4 of 37 Old 12-05-2015, 08:34 PM
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Hello Spencer. As already advised, your carb will need a good cleaning and it would be wise to purchase Tecumseh part number 631021b, which has a new bowl gasket, needle valve and valve seat. Below are some links that will help the process along with you taking plenty of pictures of the linkage and other disassembled pieces. "We all" think we can remember how it "should" go back together.

Tecumseh engine service manual-
http://www.barrettsmallengine.com/manual/tecumsehlheadmanual.pdf

Carb cleaning instructions-
http://outdoorpowerinfo.com/repairs/tecumseh_carb_632107.asp


One more thing. That black knob with the word push on it is the primer and has long since been replaced by primer bulbs. I normally leave the ignition off, close the choke, push and hold in the black knob while pulling the recoil once or twice to prime the engine. Release the black knob, turn the ignition on, throttle to fast and pull the recoil to start and slowly move the choke to fully open.

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post #5 of 37 Old 12-05-2015, 08:36 PM
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These didn't appear in my last post, sorry.



Toro 8/24 (38080) 1989
Toro 721-QZR (38743) 2015 (Hemi Predator Power)
Toro 421-E (38585) 2008 (New Owner)
Experience is something you don't get until just after you need it.
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post #6 of 37 Old 12-05-2015, 09:36 PM
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What everyone else said.
Most likely gunky mystery goo has built up from today's old ethanol gasoline. Learning how to clean out carburetors in outdoor power equipment is a useful skill these days, and I'll encourage you to do so, but if you're near Salt Lake and want help, I'd be glad to. I'd even clean it for you.
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post #7 of 37 Old 12-05-2015, 11:17 PM Thread Starter
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Thank you all so much, I appreciate the warm welcome and advice. This would be my first taking apart and rebuilding of a carb. I see new carbs on the Internet for $15 - are those any good or should I just get a kit and rebuild?

If I do a rebuild what would be all the parts that i would need and where do you suggest to buy them from?

I'm up in Ogden but make it to SLC about every month or two - if I really have a hard time getting it going, we may have to meet up

Another thought I just had - I found the manual online and there appears to be an unlockable diff. Is that true for this model and if so how do I unlock it?

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post #8 of 37 Old 12-05-2015, 11:41 PM
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just get an aftermarket kit once you clean the carb you will have as much into a kit and labor as a new carb would cost you
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post #9 of 37 Old 12-06-2015, 12:07 AM
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The majority of the time I can disassemble, clean and reassemble a Tecumseh carburetor with no replacement parts. (no kit required) Sometimes I have to go the the parts store for a bowl gasket or an o-ring. I use a small Harbor Freight ultrasonic cleaner and a set of torch tip cleaners. Like this
If you can get an aftermarket carb at that price for your engine that's not a bad plan either. Can you locate the numbers off the engine itself? Something like this
Just to make sure you get the correct parts.
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post #10 of 37 Old 12-06-2015, 12:27 AM Thread Starter
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Here's a pic of the engine tag - should posted it earlier on the original post.
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