Ariens ST270, 932001 SN 9545 stalls randomly - Snowblower Forum : Snow Blower Forums
 
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post #1 of 4 Old 12-18-2016, 12:21 PM Thread Starter
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Ariens ST270, 932001 SN 9545 stalls randomly

Motor is a H35-?5503M (Google auto-corrected it to a H35-45503M)

Just picked up the mentioned snowblower from someone who had it stored for years. Fired right up after a little experimentation (gotta turn on the gas line....).

I've done an oil change on the motor and swapped out the spark plug. Fresh gas.

When I start out, it runs good. It has some supply issues where when it needs the power, it starts bogging down and would die if I didn't lay off the load. Also, the more I use it, the motor gets weaker and weaker and starts stalling out more often. After it sits, the cycle repeats. Starts out strong but weakens.

I'm going approach this two ways. I've ordered a carb (its only 13 bucks on amazon) and I'm going to open up the gas tank towards the end to see if I have an issue with a stuck vent.

Any other ideas?
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post #2 of 4 Old 12-18-2016, 12:30 PM
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More than likely it's just a gunked up carb..... drop it out pull it appart entirely (take pics first though so you know what goes where) and soak it in a good carb cleaner/solvent. Run a wire thorough every hole/oriface, and blow some carb cleaner through too. Be sure to replace needle seat and see what you have after that. If you get a new carb you may have to swap the choke and throttle plate from the old one...... most new ones are a different style. Either way you should be able to get it going. Sad that the carb kits cost more than a Chinko carb new...




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post #3 of 4 Old 12-18-2016, 01:38 PM
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I think carb also, maybe loosen the gas cap and see if it runs better. I had one that the cap wasn't venting and it would starve for fuel. The cap is an easy fix.

Bob
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post #4 of 4 Old 12-24-2016, 08:54 PM Thread Starter
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So... I think I figured it out.

First off, I'm still going to replace the carb.. I haven't played around with it because of the snow on the horizon.. but the reason for the random cut-outs was............. the key switch. The decals were worn off and I just looked at the manual and realized my mistake.

Its so old and makes such poor contact in the beginning.... and once it gets wet and makes the grounding contact solid.... it started cutting out.

I tested it out this last storm with the key in the "ON" position and I had no issues with it cutting out.... and it idled at the lowest throttle setting, instead of cutting out like it did prior to that.

Live and learn
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