Snapper LE3190E Snowblower Engine Issues

autoxstiFebruary 19, 2014

I am having problems with my Snapper LE3190E Snowblower. It starts without much issue and will run normal sometimes but then others it will idle low. It looks like the governor is opening the throttle, but the engine doesn't want to speed up. I noticed that there is some fuel that is sputtering out the air intake of the carburetor. I took off the bowl to clean it and checked the main jet hole to see if it was clogged. I am by no means a small engine expert, any help is much appreciated!

Thank you for reporting this comment. Undo

Small engines that are used seasonally tend to form gum deposits in the carburetor, and eventually they stop working altogether. This happens because gasoline is a mixture of different hydrocarbon solvents, and it includes a small percentage of gums and resins. In the off season, the lighter more volatile portions of the gasoline sitting in the carburetor evaporate away, and the gums are left behind. If your snowblower has a fuel valve, you can empty the carburetor of residual fuel, the last time you use the unit, in late winter. Just turn the fuel valve off, after you have finished, and let the engine run until it dies of fuel starvation. You might be able to improve the performance of your snowblower by mixing in a small amount of automotive "Gum-Out" or something similar with the fuel, and operating the unit for at least 30 minutes. If that does not work, the carburetor will have to come off, and be thoroughly cleaned up. Also, the ignition system does not last forever, and it will work better if the various parts are replaced every 10 years or so.

    Bookmark   February 19, 2014 at 10:32AM
Thank you for reporting this comment. Undo

Does it start and run fine after sitting for 10 min? If so it probably is the carb icing wherein the intake right at carb will form ice due to the pressure drop choking off the intake air fuel mixture. A snowblower engine should have a metal or plastic shroud around the carb to direct warm air to the carb throat.

    Bookmark   February 19, 2014 at 3:56PM
Thank you for reporting this comment. Undo

Yes, it will start, but still has the same issues before. It does have a metal shroud at the intake of the carb, but it isn't icing since I am having these problems even when the temps are not freezing outside. I would like to take the carb off completely however one of the allen screws that holds the carb onto the engine is not accessible because of the fuel inlet. Really bad placement! I can't even get to it with a L-Shaped allen key!

    Bookmark   February 19, 2014 at 4:56PM
Thank you for reporting this comment. Undo

It can still occur at a few degrees above freezing.

    Bookmark   February 19, 2014 at 5:26PM
Thank you for reporting this comment. Undo

The bogging occurs less than a minute after starting. I have looked into the inlet and don't see any debris or ice forming. There is an inline fuel filter, could that be clogged? There was plenty of fuel in the bowl when I dropped it. I'm guessing I have to somehow take the carb off completely to try to clean it out. Just have to figure out what the easiest way to remove that one allen bolt.

    Bookmark   February 19, 2014 at 7:12PM
Sign Up to comment
More Discussions
Kohler K181 valve clearance
The engine would run perfect for maybe 30-45 minutes,...
Primer not getting Gas?? After Carb Rebuid?
I just rebuilt a couple snow blower Carbs (both Tecumseh...
Electrolytic Rust Removal
Has anyone tried this, using a battery charger, "washing...
Dewalt 3800 pressure washer, open hole between pump and engine.
Hi, I just bought a dewalt 3800 pressure washer gx...
Sears air compressor engine won't run when plugged in
Sears Paint Sprayer/Air Compressor Model No. 106.153542...
© 2015 Houzz Inc. Houzz® The new way to design your home™