1 Yr old B&S Snow Blower Running Rough

Status
Not open for further replies.
Joined
Jul 23, 2008
Messages
9,808
Location
New Jersey
i have a ariens large 9 hp B&S and it seems to run a little rough i think its because i did not drain the gas out what should i use to clean it? I know there is something to add to the fuel but i dont remember what
 
I understand. But how can you be sure you've found the problem and fixed it properly? I like to fix things only once. You may have green gel in the carburator. You won't know unless you removed the carburator bowl.

Plus, if it's running rough because of a fuel problem, I don't think running a solvent is going to help. Gasoline is a pretty good solvent on its own.
 
Seafoam +1

Or...the cover over the carb comes off pretty easily. Turn the gas off or pinch it off with vise grips then remove the bowl. Clean out the bowl and you're probably done. Too easy.
 
I'd try a healthy dose of Seafoam first.

If it fails, then you can start tearing it apart.

Very little to lose if it doesn't work.
 
Since it is only running a little rough, I would just run it for a while to get most of the old gas out then dump in some fresh stuff.
 
I would try Techron or Gumout. I think it can clean carb passage as it does fuel injectors. Of course you'd want to use a very small amount in relation to the fuel amount maybe less than 1 once for 1/4-1/2 gal tank, probably best to mix with your fuel can.
 
Yep, like said, I'd dump the fuel, add fresh with a heavy dose of seafoam.

Worst case, like yeehaw suggested, a bowl cleaning.

I'd also check the sparkplug just to verify it's a not a Chinese bubble gum and paper mache' special. Swap it out with a quality name brand if so.

Joel
 
+2 on Seafoam, I add the recommended amount when I fill my small engine gas containers. I don't worry about draining the fuel at the end of the season, I actually top it off.

Had a nagging missfire on my mower a couple years back. While preparing it for winter storage, I fogged the combustion chamber with SeaFoam spray. When I started it up last season, backfire was gone and the engine ran smooth all season. Probably a stuck valve that SF loosened up.
 
I cured an old snowblower engine of stumbling by putting in a heavy mix of Toluene with the fuel and ran it for 20 mins. Then I chased it down with a batch of fresh gas. It worked great.
 
Originally Posted By: JTK
Yep, like said, I'd dump the fuel, add fresh with a heavy dose of seafoam.

Worst case, like yeehaw suggested, a bowl cleaning.

I'd also check the sparkplug just to verify it's a not a Chinese bubble gum and paper mache' special. Swap it out with a quality name brand if so.

Joel
Hagar's Dustbin (Home Depot) has fine wire center electrode Champion plugs for the Briggs engine family, they don't cost much ..if you're going to change the plug might as well put in a good one.
 
Originally Posted By: crazyoildude
I know there is something to add to the fuel but i dont remember what

Mechanic in a Bottle (can get at Home Depot) hands down.
 
Last edited:
Originally Posted By: Smokescreen
I cured an old snowblower engine of stumbling by putting in a heavy mix of Toluene with the fuel and ran it for 20 mins. Then I chased it down with a batch of fresh gas. It worked great.


Cost effective and will elevate octane as well as elevate burn temps which may help blast out combustion camber carbon if run at full blast for the tank depending on deposit formation.
I use toluene/acetone/xylene and tc-w3 in every tank of fuel in my air compressor fleet. My service guy commented on how my carbs never have issues nor combustion chambers are all near spotless with no build up whatsoever. Apparently my 12 compressors are anomalies based on hours run vs other crews who bought pumps the same time I did and their services required til this point.
My air compressors. Have multiple thousands of hours on the engines and pumps. From what my services guy says 2000 hours is max before rebuild or replacement is required,and my newest one is well beyond that.
I use mos2 in the oil and a tc-w3/acetone mix in the fuel but substitute toluene or xylene for acetone sometimes. My service guy tells me that whatever voodoo I'm doing is working because in his experience no crew he services has equipment that lasts as long and requires less maintenance than my stuff.
I think its interesting that a man who services 50 crews equipment finds that mine needs less service than every other crew he services.
Just my experience.
 
what ratio of your vodoo mix? I am game to trying it. I already have acetone and tc-w3 in the garage and a snow blower on which I can experiment.
 
Any other tips from the health department?
Toulene is a benzene derivative and quite unhealthy to breathe in mainly because you will get dumb if exposed to it much.
Now, in an OPE, benzenes don't completely burn so you will breathe toulene in some amount.
I would *never* do that to myself!
Instead I try to do the opposite and choose alkylate fuel with alomst no benzenes and the likes. Will also reduce your problems with that seasonal use engine.
 
Status
Not open for further replies.
Back
Top Bottom