Craftsman snow thrower who makes the engine

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Old 12-08-09, 02:20 PM
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Craftsman snow thrower who makes the engine

I have a 6 year old Craftsman snowthrower #536.887990, it starts and runs well with choke, but starts to surge up and down when the choke is off. I wanted to check to see what the price of a new carb is, but everyone wants the engine model #. There is no reference to the manufacturer (I think it's a Tecumseh) in the owners manual, they keep refereeing to snow thrower model. Whats the story on what engine is powering this thing. It's been super reliable and works well.
Greg
 
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Old 12-08-09, 02:38 PM
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Old 12-08-09, 03:18 PM
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small engine parts

look up tulsaenginewharehouse.com they ,have the conversion charts at much lower prices. I got sears parts there.
Sid
 
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Old 12-08-09, 07:18 PM
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These carburetors are easy to clean and repair. If you elect to clean, use an inexpensive aerosol carburetor cleaner and clean every hole, nook and cranny. Remove the Welch plug and clean behind it.

Sears 143.029003 Tecumseh HMSK90-156536E

Emissions carburetor 640052. New about $70.00

632760 carburetor kit about $8.00.

Service Manual
http://www.tradebit.com/usr/dealerna...11553Index.pdf


The following three links show carburetors very similar to yours.
http://www.greenindustryeducation.co...s/Tecumseh.pdf

Disassembly of Tecumseh Series 1 Emission Carb 640084B

Disassembly of Tecumseh Series 1 Carb 632107
 
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Old 12-08-09, 09:56 PM
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should I rebuild the carb or replace it. The carb definetley looks like an emissions type carb. How long to actually rebuild it.
greg
 
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Old 12-08-09, 10:14 PM
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Greg,, The engine info should be (notice I said should) on the fan shroud lower left corner if your standing behind the machine,, You may have to get on your knees to see it.. BFH & Airman have some excellent links for you... I'd rebuild it with a new kit & it shouldnt take you very long.. if your like me & study things it'll be longer than just going at it & fixing it... MAX 1 hour,, these are a pretty simple carb.. Roger
 
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Old 12-17-09, 07:51 PM
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removing choke knob

removed all the brass screws that cover the carb, but the choke knob (which is red on my machine) will not come off, it is attached to workings of the carb. I do not want to force it to much and break something. It turns left to right and looks like it should come off if pulled, but no such luck. I hit it with WD40, any ideas would be appreciated.
Greg
 
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Old 12-17-09, 08:35 PM
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Originally Posted by Greg29 View Post
removed all the brass screws that cover the carb, but the choke knob (which is red on my machine) will not come off, it is attached to workings of the carb. I do not want to force it to much and break something. It turns left to right and looks like it should come off if pulled, but no such luck. I hit it with WD40, any ideas would be appreciated.
Greg
Gently pry it off with a screw driver. They are pressed on.
 
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