Best to run carb dry when putting away at night or no? - Snowblower Forum : Snow Blower Forums
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post #1 of 40 Old 02-08-2019, 05:35 PM Thread Starter
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Best to run carb dry when putting away at night or no?

Assuming that I am using ethanolated fuel with a stabilizer would it be better to shut the fuel supply off at the supply valve and run it dry until it shuts off or kill the ignition and just leave some in the bowl?

Im not talking about seasonal storage just in between uses during the season.

1999 MTD E662E 24 with 10HP Tecumseh Engine.
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post #2 of 40 Old 02-08-2019, 05:40 PM
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You'll get different opinions. After every use I turn off the fuel and let it run until it dies from fuel starvation. Others leave fuel in the carburetor bowl and have had no ill effects. At end of season I even remove the carburetor bowl drain screw and drain out that last little bit.
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post #3 of 40 Old 02-08-2019, 05:40 PM
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post #4 of 40 Old 02-08-2019, 05:44 PM
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I turn off the fuel and let it run dry. Not sure if that's the absolute best thing to do but I figure if no gas is in the bowl there is less of a risk of water and gum building up in the carb.
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Quote:
Originally Posted by WVguy View Post
You'll get different opinions. After every use I turn off the fuel and let it run until it dies from fuel starvation. Others leave fuel in the carburetor bowl and have had no ill effects. At end of season I even remove the carburetor bowl drain screw and drain out that last little bit.
Okay thanks. Hey since you do the same thing, have you ever had any leakage from around the carb when priming it before starting? Ive never had it before but did the other day and wasnt sure if it was definitely from a leak or if it just overflowed out of something from over-priming?

1999 MTD E662E 24 with 10HP Tecumseh Engine.
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post #6 of 40 Old 02-08-2019, 05:46 PM
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I've never had it leak fuel from use of the primer but I've seen youtube videos in which that does seem to happen a lot. As long as it doesn't leak when using or when the engine is off I wouldn't worry about it.
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post #7 of 40 Old 02-08-2019, 05:48 PM
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On my old MTD I have the same leakage when I prime. It's not unusual and nothing to worry about.
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post #8 of 40 Old 02-08-2019, 05:49 PM
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I don't think the fuel shut-off valve is designed for frequent operation so I leave it open, relying on the carb float valve to shut off fuel flow to the bowl. The float bowl valve is designed for frequent operation. Never had any problems. Allowing the engine to run out of gas and buck and spit as it does so every use is not a great idea in my opinion.

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post #9 of 40 Old 02-08-2019, 05:54 PM
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My thoughts from another recent thread:

IMO, there is absolutely no need to run the carb dry after every use.
Does it hurt? Probably not.
Does it help? Probably not.
Is it necessary? Definately not.

It could actually be worse though, because you are getting *most* of the gas out of the carb, but not all, so the little bit left over could dry out leaving varnish deposits behind, which could then gunk up and clog the carb. But if you just leave the gas alone until the next use, days or weeks later, there is too much gas to dry out completely, which IMO is the far better scenerio.

Most people do drain the carb, but *once a year*, at the end of winter, to prep the machine for 7 or 8 months of summer storage. In that case, they also remove the carb bowl and dump the excess gas, and wipe down the carb, to be sure its fully dry. Recent thread on that topic here:

https://www.snowblowerforum.com/foru...dry-treat.html

If you choose to run it dry after *every* use, its probably fine. But IMO there is no good reason to do it, and it could in theory be worse than not doing it.

Its always best to follow the manufacturer recommendations:

Quote:
In the Honda 1332 Manual it states:

To shutoff track unit:

1_ Disengage Handlebar (Auger and Drive)

2_ Put it in neutral drive

3_ Put it from fast to slow

4_Shut off key from On to Off

5_ Turn fuel valve off
Which in this case is *not* running the carb dry after every use.

Scot

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Last edited by sscotsman; 02-08-2019 at 05:57 PM.
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post #10 of 40 Old 02-08-2019, 05:59 PM
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In between uses I just shut the machine down. No need to run the fuel out of the bowl for such a short period - IMO.
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