My 2 cycle snowblower starts but doesn't stay running. There is good gas in it. I change the inlet needle and seat and still does the same thing. I check all gas lines and they are clean. When I push the primer it sounds like air is coming out of the carbuter. The engine number is HSK850-8310C
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Re: tecumseh 2 cycle snowblower
I know this may sound stupid but I've don it my self is the gas on? If it is then my next ? is, does the nut on the bottom of the bowl have an adjustment screw in it? If it does see if it is turned in all the way, if it's turned in than from just bottom out turn it out 1 1/4 turns out that is the fuel flow needle once running that needle may need to be fine tuned,also if it is turned out to far it wont run either cause it will flood out. If that doesn't work it might be something internal with the carb.let me know how you make out and if we need to check into it further.
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Sounds like the Needle valve in the carburetor is stuck 'down' letting gas continually run from gas tank into carb. When the valve can't go up (Close) gas will run past the carburetor and into the crank case I bet your oil is full of gas. Check oil level see if it is overfull
Many small engine problems such as you described are fuel related. In today's world, most of our gasolines are blended with ethanol and thus gasoline shelf life has been reduced to 4-6 months. It is important that after each season's use you be certain to run the snowblower until all gasoline in the tank and carburetor have been used - effectively running the snowblower out of gas. If you did't do that last season the "old" gasoline in the carburetor has began to gum up and will not let the carburetor mix fuel and air properly. The solution will be to remove, disassemble and clean the carburetor. It is likely the gas tank will also need to be drained, removed, and cleaned. If you are unable to do this you will need to take to a qualified small engine mechanic in your area.
Lastly and, very importantly, make certain when you are ready to use your repaired snowblower that you use FRESH gasoline. And, remember the first part of this discussion at the end of the season.
make sure you cleaned the main jet and low speed jet good and make sure your needle and seat are in good condition some time the seats swell up do to bad gas. there for no gas gets through the seat and make sure your gas is clean w no water, if this isnt a needle and seat carb use regular wire and clean it good.
First of all check all your fuel lines from your tank to your carb for cracks, with the carb it is common on these to leak past the needle and seat in the carb, I would remove the float and try clean up the needle and seat first, then if that doesnt work you should be able to purchase the needle and seat as a spare part and not have to replace the whole carb...
Most times this problem can be rectified with a quick clean up of the needle and seat as there could be some forign matter or debris under it, be sure to reset the float level/seat turn the carb upside down a check that the float is sitting level or parallell with the carb body...
tecumseh snow engines are natorious for not starting,first thing you need to do is take the old gas from the tank.gas only stays good for about 30 days.YEP .....that's all.there should be two screws that holds the cover over the carb.take the bowl off and there should be water and dirt in the bowl.clean that out,be careful not to drop the needle off the float.if you do it take a little patence to put it back on.now the nut you took off the bowl has three holes in the side of it.clean all the holes,one is really small and it's up twards the theads..replace the bowl gasket and reassemble the carb.now you should have fuel to the cylinder and it should start.if not let me know
First take the carb off of the engine and then remove the bowl, carefully take the float off paying special attention to the needle and how it is attached to the float. Next, lightly blow air into the fuel inlet while holding your finger over the spot where the needle goes in. Use a bread tie with the paper scraped off. Stick the wire through the pick up tube at the bottom of the carb. Find any other holes and probe those holes with the wire. Then thoroughly wash the entire carb with carb cleaner then blow the whole carb off. Then put the float and needle back in making sure that when putting the bowl back on that it seats tightly all the way around the rubber gasket. Also, just before you put the bowl on turn the carb upside down to see if the float is sitting level. If it is put the bowl on, If not then the spot where the needle sits on the float has to be bent one way or the other just a little until the float sits level. After the bowl is put in place, the nut that holds the bowl on the threaded area should have two possibly three holes plus the hole down the center, probe all holes with the wire. put everything back on the motor and try again. If it still won't run then you will need a carb kit.