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post #1 of 12 Old 08-07-2019, 11:42 AM Thread Starter
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novice to snowblowers

here is the new to me ariens st270 932001 ? h35-45503M ser, 8158B

so far my question concerns the throttle/governor connection, it is a diaphram carb. The machine runs this way and will throttle too far up if I move the speed control lever too far, moving it to lower the speed does nothing unless I jiggle the linkage to help the carb spring the throttle down. does it look like it is correct? Do you think I need a new speed control assembly? I found one on ebay?

Thanks for looking, TYIA for answers suggestions.

ps
I am only mechanically inclined enough to get myself into trouble!
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post #2 of 12 Old 08-07-2019, 02:00 PM
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First off, clean off all the crap on the carb so that the springs can work - the gov may well start working as well. When you throttle up, the carb opens to accelerate, and once it hits speed, the gov/springs pull it back, and can't work if dirty/sticky. All the throttle/gov parts should move with almost zero resistance, and sometimes on older engines, the throttle shaft/spring will gum up, but spray carb cleaner takes care of it quickly.
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post #3 of 12 Old 08-07-2019, 04:26 PM
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Welcome to SBF Joe. Looking at the ebay listing item, your spring looks to be stretched out and will effect rpm's. The arrow in the picture is pointing to the governed high speed adjustment screw. Turning the screw in or out will raise or lower the rpm's when the throttle is in the fast position. I "believe" turning the screw out will lower the engine speed.


https://www.ebay.com/itm/Ariens-ST27...wAAOSwIM9a14zb
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post #4 of 12 Old 08-08-2019, 08:47 AM Thread Starter
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ty, i will try both of these...
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post #5 of 12 Old 09-25-2019, 09:49 AM Thread Starter
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just as an update,
the control does nothing until it is moved about 3/4 of the way toward fast, which I suppose is good because a quick rpm check with the voltmeter reads that rpm to be 3600... this position has the carb only slightly open. so I do have "control" just not a full range of motion with the controller. And i can over rev the motor with it, turning the screw did nothing I noticed.
I guess I just need to wait for snow to see if it will work, thanks again!
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post #6 of 12 Old 09-25-2019, 10:01 AM
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@Joe,


I would pick up some new rims (preferably split rims, makes it easier installing tire and tube) and a set of SnowHogs or XTrac for that baby if its a keeper.
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post #7 of 12 Old 09-26-2019, 08:04 AM Thread Starter
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Originally Posted by oneacer View Post
@Joe,


I would pick up some new rims (preferably split rims, makes it easier installing tire and tube) and a set of SnowHogs or XTrac for that baby if its a keeper.
i know nothing about any of that, I need more details SnowHogs is a tire brand?
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post #8 of 12 Old 09-26-2019, 08:08 AM
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@Joe,


Yes, as well as XTrac:
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post #9 of 12 Old 09-27-2019, 08:24 AM Thread Starter
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ok ty
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post #10 of 12 Old 09-27-2019, 07:12 PM
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i know nothing about any of that, I need more details SnowHogs is a tire brand?
In @oneacer post with the two tires the left is the Xtrac and the right is the snowhog. I have used both and they are good in the snow and ice, perhaps the Xtrac are better in my area. Xtrac is produced by different tire labels with the same tread pattern, mine are stock on Ariens (Cub Cadet use Carlisle xtrac) and I prefer them to the snowhogs because they are smoother running. The deep tread blocks are closer together and cover more of the tire width. They are also directional. If you need chains then the snowhogs take a regular cross tread chain while the xtrac have very deep lugs so the chain must be able to stay on top of tread.

Good luck.

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