Ariens 624E throttle to carb linkage problem - Snowblower Forum : Snow Blower Forums
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post #1 of 17 Old 01-25-2019, 05:07 PM Thread Starter
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Ariens 624E throttle to carb linkage problem

I have a model 920001 - electric start. The throttle lever is not moving the top throttle plate on the carb, nor is the idle tab springing back against the idle stop screw. Either a linkage has broken or fallen off or it is assembled incorrectly? Here are some pics of the area - can anyone please supply some assistance getting things back correctly or if parts are needed? Which ones?

Thanks in advance for any assistance.

Having probs adding pics too it seems. Hit the image button and added my urls? So here are links to the pics, sorry

https://photos.app.goo.gl/UHoyAF1ACvPpEmRc6
https://photos.app.goo.gl/4i25U3RnoQv6XHRU7
https://photos.app.goo.gl/HeJ4bPxRRDBpPvjFA
https://photos.app.goo.gl/ojJ5SaireoDpoLe36

Last edited by chicagorandy; 01-25-2019 at 05:15 PM.
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post #2 of 17 Old 01-25-2019, 05:23 PM
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The throttle control doesn't directly attach to the throttle plate - the governor arm does. The throttle control applies tension to the spring between it and the governor arm. It's hard to tell from your photos, since you managed to not get the complete linkage in any shot . . .

Typically, there is also a small return spring atop the carb that pulls the throttle closed *IF* nothing else is pulling it open.
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post #3 of 17 Old 01-25-2019, 05:36 PM Thread Starter
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I'll dash out there now and take a couple more pics showing the throttle plate and governor linkages - thanks - be right back...…………..
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post #4 of 17 Old 01-25-2019, 05:58 PM Thread Starter
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Now I'm not sayin' that it being 6F out there is cold, but I did have to fight my way past a crabby polar bear to get in and out of my garage.

Do these Pics help any?

https://photos.app.goo.gl/6tTCV5X1gwGLseXS9

https://photos.app.goo.gl/wwr65S24B9ne4Mi89

https://photos.app.goo.gl/CAFuoDjqjofouyAy9
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post #5 of 17 Old 01-25-2019, 07:33 PM
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It looks like you have it assembled correctly. I put an arrow on the tab you can adjust to change the throttle tension. I had a machine I had to bend the tab to adjust the engines high speed.
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post #6 of 17 Old 01-25-2019, 07:55 PM
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Rule of thumb, never work on a carb or anything else complicated when there is a crabby polar bear in the vicinity.

You cannot trust those bears to just mind their business, gotta keep an eye on them every minute so it's easy to make mistakes...

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I can watch somebody work for hours...
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post #7 of 17 Old 01-25-2019, 08:32 PM
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Hello randy, welcome to SBF. Here is a link to the Tecumseh OHV engine service manual. Page 26, figure 14 shows your throttle control. It is going to be difficult adjusting your engine speed correctly without a tachometer to measure engine speed.
Are you in Chicago or one of the burbs? I'm southwest of the city and have a tach if your close by.


http://www.barrettsmallengine.com/ma...alvemanual.pdf

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post #8 of 17 Old 01-25-2019, 08:34 PM
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Take off the carb completely, removing the 2 screws and nuts and the throttle linkage, and the gas line.

Move the governor back and forth, then the throttle handle, checking for movement or binding. By removing the carburetor, you are disconnecting a possible point of resistance which will allow you to track down the problem.

The short throttle linkage arm that goes to the carburetor, has 2 ends of course. The curved end goes in to the carburetor throttle plate; the end that forms a V goes on to the arm that goes to the governor. If you don't, it may bind.

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post #9 of 17 Old 01-25-2019, 09:43 PM Thread Starter
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Thanks all,

It would appear per JLawrence's post that I have inserted the short throttle linkage 'wire' backwards from the governor arm to the carburetor throttle plate.

I'll swap it over in the morning, fire up the beastie and report back. We're forecast to get another 6+ inches of snow on Monday, and at 70 I'm not likely to grab a shovel - LOL - haven't much touched one except for my front bungalow stairs since I got this blower in '07.

Oh, and the polar bear seems to be sleeping soundly. I fed him my pet seal.
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post #10 of 17 Old 01-25-2019, 11:42 PM
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I thought it looked like it might bind, but missed that you had taken it apart, instead thinking that this just started happening. . . . and assembly was correct and had been working. Sorry . . .
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