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snowblower carb has me stumped #15463784 11/28/20
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KFWA Offline OP
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Pulled the snowblower out last week and attempted to start it today.

if it sits for a few minutes, it will start up and run for about 10 seconds, then die.

First I made sure there was good gas flow to the carb - no issues there. I also put in a new spark plug just for the hell of it.

Then I took the carb apart - this one doesn't have any jets you can remove (as far as I can tell). At any rate, I cleaned it up and blew compressed air thru the main line. Put it back together, same deal.

Took the carb apart again and I noticed the bowl was pretty much dry, so I took the float out , cleaned it up - without the float pin - whatever that doohicky is called - gas will flow thru in a stream , but when I put it back in with the float assembled it just a few drips. I'm not sure if that's correct or not but it seems to be the problem.

I screwed around with it a few more times and decided I'd just reassemble the carb without the float - and bingo - snowblowers runs great, but about 20 seconds after I stop it, gas is pouring out the carb of course.

Doesn't seem that complicated but I can't seem to find the sweet spot - the float is plastic and there is no way to adjust it.

I had another carb laying around that had a deeper bowl that fit, so I cannibalized it - it did help a bit - the motor would run for about 35-40 seconds, then it would eventually starve itself of gas again.

I gave up and ordered a replacement carb to be here on Monday, but I don't understand why I can't get this float to work like it used to.

BP-B2

Re: snowblower carb has me stumped [Re: KFWA] #15463810 11/28/20
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cra1948 Online Content
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Carburetors are why fuel injection was invented



Mathew 22: 37-39

Happy escapee from NY

Re: snowblower carb has me stumped [Re: KFWA] #15463824 11/28/20
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Jim_Conrad Offline
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Aint got no gas in it mmmm hmmmmm.

Re: snowblower carb has me stumped [Re: KFWA] #15463830 11/28/20
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viking Offline
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Clean the jets.

Re: snowblower carb has me stumped [Re: KFWA] #15463838 11/28/20
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MIKEWERNER Offline
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Your float needle is sticking.......open and closed.

Clean the passage the needle slides in, as well as the gas line intake.

Replace gas line also.


"Those that think they know everything are annoying those of us that have Google." - Dr. D. Edward Wilkinson

Note to self: Never ask an old Fogey how he is doing today.
Revised note to self: Keep it short when someone asks how I am doing.

IC-A

Re: snowblower carb has me stumped [Re: KFWA] #15463846 11/28/20
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Ghostinthemachine Offline
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Seafoam dat beeach

Re: snowblower carb has me stumped [Re: KFWA] #15463858 11/28/20
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gunzo Online Content
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What brand & size is the motor. I'd like to look at a float pic if I can find one.

Re: snowblower carb has me stumped [Re: KFWA] #15463861 11/28/20
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rockinbbar Online Content
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Another gift from the ethanol department.


~Molɔ̀ːn Labé Skýla~
~Liberal Stupidity Has Now Exceeded Their Ignorance~
Re: snowblower carb has me stumped [Re: KFWA] #15463883 11/28/20
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Dillonbuck Offline
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Try leaving the gas cap off.
Vent shouldn't have an effect that quick, but its an easy try.


Probably as others said, sticky needle.


I'm an American, we kneel to no man.
Only to God!

The Alabama section of Pennsylvania.
Where we cling to our God and Guns.
Re: snowblower carb has me stumped [Re: Ghostinthemachine] #15463914 11/28/20
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Originally Posted by Ghostinthemachine
Seafoam dat beeach

This.


If you take the time it takes, it takes less time.
--Pat Parelli

American by birth; Alaskan by choice.
--ironbender
IC-B

Re: snowblower carb has me stumped [Re: KFWA] #15463918 11/28/20
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KFWA Offline OP
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I did leave the gas cap off, but either way, I am getting good flow.

I don't have a wire to clean the jets but I'll get one tomorrow. The new carb arrives tomorrow as well. I hope I have better luck

I quit for the night. I smell like gas and I'm hungry.

FWIW, the carb is a Briggs & Stratton 798917

Last edited by KFWA; 11/28/20.
Re: snowblower carb has me stumped [Re: KFWA] #15463940 11/28/20
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Also put a fuel shutoff valve in the line. Before storing it close the shutoff valve and run it until it quits. That'll cure 99% of the gummed carburetor problems like the one you have.

Carburetors are of the devil.

Re: snowblower carb has me stumped [Re: MIKEWERNER] #15464061 11/28/20
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12344mag Offline
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Originally Posted by MIKEWERNER
Your float needle is sticking.......open and closed.

Clean the passage the needle slides in, as well as the gas line intake.

Replace gas line also.


This!

Replace the needle as well I've seen the tips swollen up from Ethanol. Start using Recreational fuel in all your small engine stuff as well.


Paul

"I'd rather see a sermon than hear a sermon".... D.A.D.

"Because I'm President and they're not".... DJT

Joe and the Ho 2020!

molɔ̀ːn labé skýla

Re: snowblower carb has me stumped [Re: KFWA] #15464122 11/28/20
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micky Offline
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Go find ethanol free gas and only run that stuff


"Pain and fear are your best friends. Pain lets you know you're alive and fear lets you know you're still sane."
Re: snowblower carb has me stumped [Re: KFWA] #15464176 11/28/20
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JeffA Offline
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Most all the small motors today are listed on Amazon for replacement carb, air filter and fuel filter kit for under 20 bucks

I've done my mower, pressure washer and one chain saw recently.
Not even worth looking at twice, just order the new carburetor.

Just for example

$15.96
640084B Carburetor for Tecumseh 5HP MTD 632107A 632107 640084 640084A TORO 521 Snow Blower HSSK40 HSSK50 HS50 LH195SA - Tecumseh 632107 640084 640105 640299 632107A 640084A 4 & 5 HP Engines Carburetor

[Linked Image from images-na.ssl-images-amazon.com]

Re: snowblower carb has me stumped [Re: KFWA] #15464268 11/28/20
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mike7mm08 Offline
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Probably not your issue but something to watch for that causes a lot of problems. Ethanol gas really messes with the fuel lines. Everything can look good but the ethanol will soften the lines causing them to collapse.

Re: snowblower carb has me stumped [Re: KFWA] #15464281 11/28/20
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Seafire Offline
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I started putting a value on my time screwing with stuff like that...

$15 for a new carb is pretty cheap... normally they were like $35 to $50....

As said above, I'd start to blame that on ethanol...

I quick using ethanol, and any gas station gas period...I even think the high dollar non ethanol fuel is usually ethanol any way..
because using that stuff at $4.50 a gallon, I was still having the same issues constantly... pasty stuff floating in the bottom of the Carb bowl...

I have started going over to the local Airport, and buying AV GAS... its $4.50 a gallon also.. but its 100 octane and there is NOT any Alcohol snuck in there.....buy it 5 gallons at a time...

haven't had one issue with any power equipment I use, and this property requires quit a bit of them to keep it up....

Figure a value on my time.. and $4.50 a gallon with no problems is cheaper than paying $2.50 a gallon and having to take the carb off and clean 4 or 5 times just during the life span of a gallon of pump gas...




"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC

“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez

Re: snowblower carb has me stumped [Re: KFWA] #15464295 11/28/20
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Seafire Offline
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for cleaning out jets in a Briggs Carb.. I find using a paper clip, normally works real well....

Replacing fuel lines is also pretty cheap, vs trying to clean them.




"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC

“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez

Re: snowblower carb has me stumped [Re: rockinbbar] #15464319 11/28/20
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Ranger99 Offline
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Originally Posted by rockinbbar
Another gift from the ethanol department.



^ ^ ^ ^

Re: snowblower carb has me stumped [Re: KFWA] #15464334 11/28/20
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Ranger99 Offline
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Just me-
I don't leave fuel in any small engine equipment
or outboard or motorcycle etc. anymore
I'll not try to start anything until I can flush the
tank and drain the carburetor if possible.
Trying to turn it over just forces bad gas and trash
into those tiny passages and makes for a BFM

Gas is crap anymore and I haven't had any
luck with treatments the last few decades
I quit trying to store a supply of gasoline some
time back. If it even seems the least bit rotten
it gets disposed of and I'll buy fresh

Last edited by Ranger99; 11/28/20.
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