Snowmaster engine really that picky? - Snowblower Forum : Snow Blower Forums
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post #1 of 20 Old 01-19-2018, 10:45 AM Thread Starter
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Snowmaster engine really that picky?

I just bought a Toro snow master 724 this season. Thanks to helpful members of this forum, I was aware of the need to be careful with ethanol gas left in a tank as it may gum up your carburetor.

Bought new fresh gas and loaded up the tank fresh for first use. All is well. Love the machine -- so much better and easier to use than my old beast of a two-stage. Cleans my massive drive way in no time flat. Added marine Stab-il to tank and gas container.

No snow for two -three weeks. Then a small 6 inches over two days. First day, use the snow master 2-3 times with no issues. Next morning use again and run out of gas. Towards the end of the tank, the engine was running rough and surging. Fill gas from stabilized container, but now it won't turn over.

Suspect the carb is gummed up with the three week old gas. Will drain it this weekend, to include the carb. refill with new fresh gas and Sea Foam, prime and let sit for 24 hrs to see it that clears it up.

But seriously???? A potentially gummed up carb after several uses and just a few weeks of stabilized gas sitting it in?

Is this engine really that finicky? I probably had less than two hrs running time. Not even enough to change the initial oil yet. What can I do in the future to make sure the machine runs well? Thanks!
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post #2 of 20 Old 01-19-2018, 11:10 AM
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mine is 2 years old and leave the gas in it untreated for a few months during the winter wit no issues. I do use premium gas though. I suspect you have bad gas
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post #3 of 20 Old 01-19-2018, 11:15 AM
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Thanks to the great guys advice on the forum, I have not used ethanol gas for years. Small engines run sooooo much better using non-ethanol. You say you bought new fresh gas, but do you really know how fresh it was? That's the great unknown. Buy ethanol gas, let it sit and there you have issues. Even during the coldest temps my new Toro 721 starts best with 2 prime push and the choke pulled out 3/4 the way. If you don't have access to good non-ethanol gas I suggest using K100 fuel treatment. My neighbor, (Mr. Small engine disaster) starting using it on my advise and it has been working great with his ethanol gas.

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post #4 of 20 Old 01-19-2018, 11:17 AM
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Drain the carburetor and try starting it again.

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post #5 of 20 Old 01-19-2018, 11:18 AM
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Originally Posted by Wileyson4158! View Post
I just bought a Toro snow master 724 this season. Thanks to helpful members of this forum, I was aware of the need to be careful with ethanol gas left in a tank as it may gum up your carburetor.

Bought new fresh gas and loaded up the tank fresh for first use. All is well. Love the machine -- so much better and easier to use than my old beast of a two-stage. Cleans my massive drive way in no time flat. Added marine Stab-il to tank and gas container.

No snow for two -three weeks. Then a small 6 inches over two days. First day, use the snow master 2-3 times with no issues. Next morning use again and run out of gas. Towards the end of the tank, the engine was running rough and surging. Fill gas from stabilized container, but now it won't turn over.

Suspect the carb is gummed up with the three week old gas. Will drain it this weekend, to include the carb. refill with new fresh gas and Sea Foam, prime and let sit for 24 hrs to see it that clears it up.

But seriously???? A potentially gummed up carb after several uses and just a few weeks of stabilized gas sitting it in?

Is this engine really that finicky? I probably had less than two hrs running time. Not even enough to change the initial oil yet. What can I do in the future to make sure the machine runs well? Thanks!
Unless the gas itself was bad (seems doughtfull as you used it and it ran fine)
treated with stabul that gas has not gone bad in 2 or 3 weeks
did you put to much stabul in maybe
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post #6 of 20 Old 01-19-2018, 12:15 PM
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If it doesn't start and you have easy access to the carb bowl take it off and work the float up and down slowly and spray carb cleaner at the needle and up into the seat as best you can and see if that does the trick. It may not be so much that the fuel went 'bad' but some fuel line doesn't like ethanol and it starts to break down. Also just filling a blower while everything is wet and it's snowing introduces water.
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post #7 of 20 Old 01-19-2018, 12:48 PM
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Mostly for machines that I don't when will get their next use I shut the fuel and run them dry. After it runs down I choke, prime and start again and will usually run for another 20-30 sec. I can do this a couple times sometimes to clear the carb. If the machine has a float bowl drain all the better.

Having said all that, you're carb should not gum up from bad gas in three weeks. Pop the bowl off, wipe it out and run a pc of copper wire through the jet if possible. Something may have got in their but hard to believe it was from the gas you just put in it.
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post #8 of 20 Old 01-19-2018, 01:05 PM Thread Starter
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Thanks all! I'll definitely drain the fuel and carb and take it from there. Appreciate all the advice.
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post #9 of 20 Old 01-19-2018, 01:44 PM
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Sounds like you have a good handle on proper fuel usage and storage. Id spray a little starting fluid into the carb to verify if its a fuel issue. For the 5 seconds it takes, it could save you a lot of time in the long run.

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post #10 of 20 Old 01-19-2018, 02:40 PM
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why are u assuming its bad gas, especially after only a few weeks and u used stabil.
id suspect something else, fuel delivery like shutoff valve, spark, sticking throttle, bad gaskets, bad carb parts like float etc. u need to trouble shoot further than just assuming bad gas.

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