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Re-assembling tecumseh carburetor #632641 off of toro ccr1000 snowthrower model 38190. engine 3hp tecumseh model #hsk600 type 1659r. everything is cleaned up and ready to go, but i can't remember how the float shaft spring came off or how to get it back on. i took some notes, but it came off too quickly. 90 degree L shape bend in one end of spring goes on the outside of the float, but i can't remember or figure out where the smaller 90 degree goes. does it just rest against the rim of the bowl housing just inside the gasket? does it provide that little tension? anyone have a photo? the diagrams and drawings on the web are pretty much useless. also, intake baffle/spit cup - cup up or down?

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  • bobbyorr Feb 12, 2009

    i figured out which way the spring was supposed to go before i got your answer, both ends belong on the inside, like a little hinge. i knew which way the carb bowl went, i guess i did not describe the other part very well. it's the little u-shaped, half cup on the outside of the air intake port? i just put on so the open part was facing down (take in less dirt that way). she starts, but still runs really rough and stalls. seems like it would run forever on full choke. i will double check carb, maybe pull welch plug, i think there are more needles under there. thank you (maybe it's a vacuum leak?)


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Got the same set up

Posted on Feb 10, 2010


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Engine will start after priming but stops quickly (actually runs only very slowly and then stops).

Rheupel, Check that you have good fuel flow in gas line from tank. It sounds like a carburetor issue still, one of the ports are still plugged or float level is not set properly. Did you remove and clean emulsion tube in carb. If your carburetor is of diaphragm type, replace the diaphragm. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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No spark in my toro 38080 mod# snowblower,new plus,new gas ,fuel line,primer bulb,line, no spark

The Toro 38080 was made from 1979 - 1993.

With it not producing a spark then you have an ignition system problem. Depending which Tecumseh HM80 engine setup you have you may have either an internal ignition system or external. By this I mean under the flywheel or external to the flywheel. There was also hybrid system that was both internal and external.

This engine could either points based system or a CDI all in one coil pack.

Now if it is an internal points systems it will be major an under taking for someone that never worked on one these engines as if you replace the points the ignition system must be re-timed. Note that where a few fix time setups. You might get lucky and it just dirty contacts which can cleaned without up setting the timing. To gain access to these points the flywheel must be removed.

Probably the best to do first is to download a copy of the service manual to see if this something that you can do or if you what to get a small engine mechanic that is experienced with Tecumseh repair to do.

Ignition system info starts on PDF page 67 (manual page 63) in the following manual. It will explain on how to test and repair the systems involved.


Dec 27, 2014 | Toro Lawn Mowers

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Governor linkage on toro snowthrower model#38415

If I cross reference the engine correctly it is a TEC HSK 850 so the follow service manual should be what you need.

Nov 03, 2014 | Lawn Mowers

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to far away for me to look at it i'm on the east coast

Sep 01, 2012 | Toro Lawn Mowers

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Toro recycler 20017 is very hard to start. it has to be primed many times. after it run a while it starts on one pull.

The carburetor may need to be serviced. You need to find a parts shop that handles Tecumseh parts. You will most likely need a rebuild kit for the carburetor. The carburetor part number is 640303. The rebuild kit is 632809. The Tecumseh engine company shut its' doors 3 years ago. Finding parts is becoming harder and harder. I've heard that someone has bought Tecumseh over the winter but it is unknown when the new parts will hit the market. Best of luck to you.

Apr 03, 2011 | Toro Power Lawn Mower

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I have a craftsman snow king snowthrower that will not start. The model is 247-884551. The gas was taking out of the snowthrower at the end of last season. Fresh gas was put in for the start of this...

My name is Dane and I am going to help you solve your problem. When you say that the engine turned over, I am going to take that to mean that the engine fired and tried to start. If this was the case, you definitely have a problem with fuel getting to your cylinder. Normally this means that your carburetor and/or fuel tank- filter -lines are dirty and they should be cleaned. However you stated that the carburetor jets and ports are clean. If you didn't flush the fuel lines and tank when you cleaned the carburetor, then it could have gotten recontaminated again from the tank.
The only other way you could have these symptoms is if the intake gaskets going from your carburetor to your engine are failing. To test this, place about 2 tablespoons of fuel directly into the mouth of the carburetor, turn the choke on and try to start the engine. If it starts for a second or two and dies, you will have to clean your complete fuel system again from the tank to the carburetor. If it doesn't try to start replace your intake gaskets.

I hope I've helped. Thank you! Dane

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My 13.5hp ov358ea is .004 both valves. Would like to know model of your engine. I want to replace the non-adjustable carburetor of my 13.5hp ov358ea with an adjustable carburetor.

Retired Airline Mechanic

Jun 26, 2010 | Mtd LAWN MOWER PART # 683-04163B FRAME...

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Engine will not stay running


When the engine stops check the spark at the spark plug.Check compression(remove the spark plug and ground the plug wire on the engine,seal the plug hole with your thumb.Operate the starter.If the compression preasure blows your thumb off the hole,the compression is adequate for the engine to run.Now priming the engine(put some gas into the spark plug hole,back the spark plug and try to start the engine.Let me know. savumihai71 regards

Dec 10, 2008 | Toro Lawn Mowers

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