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I have a 2013 Craftsman lawnmower with a Briggs & Stratton 140cc motor. The number after the 140cc on the label says 381347. The other day it started up just fine then stopped dead. Couldn't get it to start back up. I checked out a couple of Youtubes and decided to take the Carburator off, clean it out and replace all the old gas. Just when I finished putting everything back together, there was what looks like a very small pass thru Gas Filter sitting on the deck where I was working. I can't find it anywhere in drawings or instructions. It's a small 1" long plastic round thing that has a small opening.

Does anyone have any idea where this goes? The lawnmower is working but takes two pulls to start compared to one before all this.

I'm all ears...

It is the white thing on the side of the carb in this picture. Supposed to go to a non existent primer hose. but could effect priming if not installed.

Thank you for your help! Like you said and showed, it fit right in and wasn't hard to do either. Just removed the Air Cleaner and slid the Carb off. Easy peasy, Pumpkin Pie!

Unfortunately, the mower did not start up afterward but I'm hoping it has something to do with the gas needing to get up and start priming. I'll give it a bunch of pulls in the morning. Thnks again!

Those plastic carbs are bad about developing clogging debris. Most likely you will need to pull the carb and clean it.

The number you gave does not back as a model number. Probably an in house label PN. With Craftsman mowers sometime they include the engine's model on IPLs but not always. It probably a 8P engine with the model and type engrave on the side of the crankcase.

As for carb I have seen what look like ting jelly beans to what was in the last carb that looked similar to snowflakes that had clogged the main jet.

StarTech said:

Those plastic carbs are bad about developing clogging debris. Most likely you will need to pull the carb and clean it.

The number you gave does not back as a model number. Probably an in house label PN. With Craftsman mowers sometime they include the engine's model on IPLs but not always. It probably a 8P engine with the model and type engrave on the side of the crankcase.

As for carb I have seen what look like ting jelly beans to what was in the last carb that looked similar to snowflakes that had clogged the main jet.

Click to expand...

Sounds like somebody had some water contaminated ethanol gas(similar to diesel algae) that had been treated with Sta-bil.

I get that the fuel could have been contaminated but what would that have to do with Sta-bil ?? I don't think that Stab-bil is made to contaminate the fuel or at least as to what I have read about it. You would think if it did there would have been a few lawsuits for the problem.

What IL is saying that the Sta-Bil is combining with the water and creating a jelly like substance. I have seen jelly like substances even without Sta-Bil being in the fuel. One time the carburetor I was working was complete filled with jelly substance that looked like clear gelatin and personally kow the customer never used any fuel stabilizers. He was lucky to even get out of bed on some days without telling him how.

The Sta-bil will form a white crystalline deposit when it deteriorates. That bit of information came from a retired engineer that worked for the company that made Sta-bil. Every time that I have found the white crystals in the fuel bowl on a carb repair, and make the comment to the customer "I see that you have been using Sta-bil". And the reply 100% of the time has been "I have, how do you know"

I took the lawnmower to a shop and dropped it off. This shop is awesome. I dropped off another lawnmower a couple of years ago, they had it for a week and only charged me $40. Said the gas had water and the plug was fouled.

I have no clue what the problem is. I took the carb off and completely cleaned it. I sprayed Carb Cleaner in every hole I could find. It was dirty but now it looks brand new. I believe there was a little water in the bowl and the gas tank. Not a lot though. These guys will figure it out and I'll update this thread when they do. Thanks again for your assistance!

I find it interesting my Carburetor sells for $54.00 on the Briggs & Stratton website. And when I Google the same Carburator, I found many for as little as $10.00.

The carb is made in China like every thing else in the Hyper greedy USA
Briggs have a quality control team that tests them all so they should be perfect out of the box
Guess where the rejects bought for scrap metal price end up ?

Plus China steals designs and make them too. They actually seeing the design so they can clone them.

Plus everything not made in China. There other countries doing the same thing and getting fairly rich off the unsuspecting public. But I can say that the communist are the worst at stealing amony other things.

China does not "Steal" anything other than data & the personal information of politicans & business leaders for blackmail purposes.
Which puts them in the same boat as the CIA, FBI, & our ASIO & ACIS
US citizens give them US patiented designs and ask them to copy them
Chinese patient laws puts patient responsibility on the orderer not the manufacturer
So if you brought the lattest B & S engine to a factory in China with the instruction to make 10,000 as per sample the patient infringement lies with you not the factory
So all of the copies of US patiented goods were done at the request of a greedy US businessman not a sneaky Chinese spy so the criminals are Lowes, Walmart , Harbour Freight and similar stores .
Tooling up is expensive and China was short of money so they set up the laws this way knowing that whatever they made for the dishonest USA ( and Australian ) thieves would be sold .
Once they have the designs then they can sell the same products to others if made to order without a breech of Chinese law
If they made the product then exported it themselves then they would be in breech of Chinese Law and the Party have a habit of enforcing that law by firing squads .
When your aim is to become very rich & destroy the economies off all of your enemies ( the entire West World ) then the last thing you want is to have competition driving down prices before you have become dominant in the manufacture of every thing that is made on the planet.
The Chinese made Kohler Courage engines are substantially better design & of higher quality than the USA made Courage engines as they have a forged crank as per the original design .
Because the majority share holders in just about every public company are pension funds, hedge funds & investment funds they are now in a situation to dictate to the boards what the dividends will be ( the exact opposite of what was supposed to happen ) so large companies have no option other than to purchase from the rock bottom supplier which in most cases is China and to a board member, making a decision that will put a million or more US citizens out of work while guaranteeing another term ( thus another $ 3,000,000 + in fees & bonuses ) is a no brainer .
This is why on average the quality of life & life expectancy for the average USA citizen is dropping and has been doing this since the Regian administration.
IT will not change because the top 10 % are becoming wealthy beyond their greedy imaginations while the bottom 60% are getting poorer by the day and the middle 30% aspire to join the top 10 so won't rock the boat .

Well Bert it still seems like thief when the plans get out the manufactures' hands into cloners' hands without their knowledge. Probably why so many clones are not update design wise.

I know I got a few custom clutch tools here that I will not even show my customers as I haven't patent them yet. Only my machinist know about them and he has retired. Even then I gave him only the basic design and not the finish design work.

Various Presidents & down here Prime Ministers intonate that the nasty communist Chinese are stealing because they need to carry favour with the real criminals for party funding .
Much worse in the US because your election cycle is way too short at 2 years where as we have 4 year terms for reps & 8 for senate which even then is too short with 1/2 the senate elected at each reps election which keeps the lunatic fringe out of the senate but of course also favours the bigger parties
Not perfect as the woman many overseas think is the Australian Prime Minister, Pauline Hansen has managed to get elected by the zenophobic racist right for tha past 15 years