snow blower rpm question

SDE

Well-known Member
The first time I started my 8 hp Simplicity it ran at a very high rpm. I started blowing snow and the load on the engine brought the rpm down. The engine stopped after about thirty yards. The problem was the gas cap wasn't venting and I would run out of gas. I brought the cap into the house today and I am expecting that melting the ice that might be in it will fix that problem. Is the high rpm a separate problem? Will only a carburetor removable and cleaning fix that? It isn't running smooth either. Are both of these problems in the carburetor or are both problem associated with a problem with the governor? If the problem is with one, I would rather not mess with the other.
TY
SDE
 
No. The throttle has always had a lot of tension on it. I don't think the butterfly is tight though. After I take the shield off, I will check to see if it is binding.
 
If you just aquired the blower, anything is possible.

Storage might be an issue. If you have ice in the gas cap you may have ice interfering with the throttle linkage too.

You say this is the first time you ran it. Do you mean you just bought it? Or is it just the first time this year?
 
I am sorry that I have not returned before now. It was mud plugging the cap. Darned mud daubers.

It was the first start of this year on a machine that I got the year before. It is an older machine that someone decided that they did not want to pay for the repairs. The throttle rod is a vertical rod that is broke and so I have to set it and forget it. I choke it to turn it off. The carburetor had slime and crud in it, when I got it, and after I cleaned it out, it ran very well. I really like this machine. It's a Simplicity with an 8 hp Tecumseh engine. My concern is that it seems to be running at a RPM that is much higher than another 8hp Simplicity that I use at my Dad's house.
 

Did you use new carb gasket at engine/manifold?
Maybe it is sucking extra air downstream of butterfly via gaskets or shaft bores in the carb casting, etc.
 
When I was going to remove the carb., I found that one screw wasn't tight and that the other one wasn't even that tight. I tighten both screws that hold the carb. to the manifold and hoped that it was going to fix my problem. It wouldn't run at all then. I took the gas cap off and found that it was out of gas. Added gas and the rpm seemed to be in the normal range and it blows snow again.
TY
SDE
 

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