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Can't believe I fixed it #4677872
02/25/18 05:40 PM
02/25/18 05:40 PM
Joined: Feb 2011
Posts: 2,039
California
Stelth Offline OP
Stelth  Offline OP
Joined: Feb 2011
Posts: 2,039
California
Last year, I bought one of those wheeled string-trimmer things that looks kind of like a lawn mower, but has the really heavy string where the mower blade would be. Sears Craftsman, Briggs and Stratton engine. After getting quite a bit of use, it sat for a while. Then it wouldn't start. It had usually taken one or two pulls to start, very reliable. Now, nothing. So, I put more gas in it, no dice. Now I'm thinking carburetor trouble.

I have never had good luck with carbs. My feeling has been that they are inhabited by evil spirits, and I can't find the proper incantations. Cars have been fuel injected for quite a while, so I figured I didn't have to worry about it. Of course this one is plastic. I figured out how to get the float bowl off, and found that the float was moving freely, and that there was fuel in the bowl. Now what. I noticed a plastic deal in the middle of the bottom of the carb that looked like it might come out. After some judicious prying, a plastic thingy that looked like three towers came out. I discovered that there was a little brass insert that I couldn't blow through (gotta love the taste of gasoline). I showed it to my DW and asked her if she could think of anything small enough to stab into it, and sure enough, she suggested a sewing needle. Eureka.

Surprisingly, I was able to re-assemble everything on the first try, and now it starts on the first pull again.


Experts are often wrong, but rarely in doubt.
Re: Can't believe I fixed it [Re: Stelth] #4677881
02/25/18 05:48 PM
02/25/18 05:48 PM
Joined: Apr 2009
Posts: 2,933
Canada
boraticus Offline
boraticus  Offline
Joined: Apr 2009
Posts: 2,933
Canada
Garbage bag wire ties are good for cleaning carbs if you don't have anything else like a set of cutting torch tip cleaners.

When I can't find the torch tip cleaners, which is often, I get a garbage bag wire tie, strip the paper/plastic from it and go to work. The wire is the right diameter and very flexible so I don't worry about it breaking off in an orifice.

Re: Can't believe I fixed it [Re: Stelth] #4677882
02/25/18 05:49 PM
02/25/18 05:49 PM
Joined: Mar 2013
Posts: 4,763
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 4,763
The Midwest
Good deal! Never be afraid to try.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Re: Can't believe I fixed it [Re: Stelth] #4677883
02/25/18 05:50 PM
02/25/18 05:50 PM
Joined: Jun 2003
Posts: 33,077
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,077
ME
I was vacationing once on this island where there was no industry, no hardware store, but a dump. Inspired by the overgrown hay in the 100 square feet of non-rocky property I lugged home a lawnmower that only ran if you pressed the primer button. It came full of gas and oil even!

Dismantled the carb with a crescent wrench I found, stripped the paper off a bread tie, shoved that through the carb, reassembled, and it started right up. I mowed. drive

Re: Can't believe I fixed it [Re: Stelth] #4677898
02/25/18 06:02 PM
02/25/18 06:02 PM
Joined: Jun 2003
Posts: 17,351
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,351
Deplorable in apple valley, ca
I can rebuild a racing carb,Holley or carter. I don't have any luck with small engine ones. Spent most of Friday morning messing with my chainsaw. Finally took it to a shop about 3pm.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Can't believe I fixed it [Re: Stelth] #4677919
02/25/18 06:27 PM
02/25/18 06:27 PM
Joined: Mar 2008
Posts: 5,840
South Florida
bubbatime Offline
bubbatime  Offline
Joined: Mar 2008
Posts: 5,840
South Florida
Many small engine carbs are as cheap as $12 to $15. Just replace it, instead of taking it to the shop. Very easy, works perfect every time.


17 Chrysler Pacifica Mobil 1 5W30
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 PZL Plat 5W30
06 GMC Sierra Nextgen 10W30


Re: Can't believe I fixed it [Re: bubbatime] #4677944
02/25/18 06:51 PM
02/25/18 06:51 PM
Joined: Oct 2012
Posts: 4,611
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,611
Taiwan
If it worked, good, but I dont think a sewing needle is a very good choice because they have a taper.

Common recommendation is a nylon bristle.Also fine copper electrical wire strand.

In extremis I use a pressure jet of detergent-in+water from a hypodermic syringe, (after boiling) and in extreme extremis I poke it with the needle at the same time.

You need a fine needle, like from an insulin syringe, for the last resort.

Re: Can't believe I fixed it [Re: Stelth] #4678019
02/25/18 07:59 PM
02/25/18 07:59 PM
Joined: Aug 2008
Posts: 3,159
USA
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,159
USA
Carb Jet. Meters fuel into the carb.

On older motorcycles it was a thing to get a "jet kit" to bump up the fuel delivery for more power or to make the bike run cooler.

I like to screw with people sometimes and I'll ask if their bike (that had EFI) has a performance jet kit. You'd be surprised how many people say yes because it sounds like something cool to have.

Re: Can't believe I fixed it [Re: Stelth] #4678033
02/25/18 08:10 PM
02/25/18 08:10 PM
Joined: Apr 2013
Posts: 170
Kevil,Ky
vwmaniaman Offline
vwmaniaman  Offline
Joined: Apr 2013
Posts: 170
Kevil,Ky
Once met an old man at a flea market, he had a trailer full of weed eaters and saws and the like for sale. I asked him how he got all of them and how he fixed them. He said he added a quarter cup of sea foam in the tank first and some gas. I had a weed eater that came from my Dad's shed. He passed away like 12 years ago. it had sat all that time. Son added 2 stroke gas and tried to start it with no luck. I went over to it and added the sea foam. It started on the third pull and ran fine again Used it all afternoon on leaves. I'm a believer.


Don't waste your time on a slipshod repair.
Re: Can't believe I fixed it [Re: Stelth] #4678046
02/25/18 08:18 PM
02/25/18 08:18 PM
Joined: Jan 2007
Posts: 796
El Oeste
HawkeyeScott Offline
HawkeyeScott  Offline
Joined: Jan 2007
Posts: 796
El Oeste
Great story. Congrats on the successful repair. Too many good how-to videos not to at least give it a shot. That said, I really enjoy doing a carb rebuild on a Briggs or Tecumseh. On 2 cycles, itís just too cheap and easy to buy a new carb and swap it out. Tiny parts and passages can mean big headaches.

Re: Can't believe I fixed it [Re: boraticus] #4678298
02/26/18 01:08 AM
02/26/18 01:08 AM
Joined: Dec 2016
Posts: 6,230
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,230
Waco, TX
Originally Posted By: boraticus
Garbage bag wire ties are good for cleaning carbs if you don't have anything else like a set of cutting torch tip cleaners. The wire is the right diameter and very flexible so I don't worry about it breaking off in an orifice.


Keep old broken guitar strings around for the same purpose! thumbsup


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Can't believe I fixed it [Re: Linctex] #4678582
02/26/18 11:30 AM
02/26/18 11:30 AM
Joined: Apr 2009
Posts: 2,933
Canada
boraticus Offline
boraticus  Offline
Joined: Apr 2009
Posts: 2,933
Canada
Originally Posted By: Linctex
Originally Posted By: boraticus
Garbage bag wire ties are good for cleaning carbs if you don't have anything else like a set of cutting torch tip cleaners. The wire is the right diameter and very flexible so I don't worry about it breaking off in an orifice.


Keep old broken guitar strings around for the same purpose! thumbsup


The best I can do is play a radio, so I don't have any guitar strings laying around.

Good idea though. I'll have to find some of my old rocker friends from the 60's who may still play a bit of guitar and ask them to save the thin strings for me.

What I find ironic is we're having this discussion regarding the best wires to use to clean a carb, but according to "experts" it's the last thing we're supposed to do to clean a carb?

The only sensible reason I can think of for not using a wire is that you won't be able to clean the carb and will need to take it into a shop so an expert can clean it, likely using a piece of wire. wink

Re: Can't believe I fixed it [Re: Stelth] #4678690
02/26/18 01:35 PM
02/26/18 01:35 PM
Joined: May 2006
Posts: 4,012
Central Wisconsin
dwendt44 Offline
dwendt44  Offline
Joined: May 2006
Posts: 4,012
Central Wisconsin
Quote:
The only sensible reason I can think of for not using a wire is that you won't be able to clean the carb and will need to take it into a shop so an expert can clean it, likely using a piece of wire. wink


But that would be the factory's officially endorsed wire. laugh


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
Re: Can't believe I fixed it [Re: Stelth] #4678739
02/26/18 02:38 PM
02/26/18 02:38 PM
Joined: Feb 2015
Posts: 2,199
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,199
Slovenia EU
This is how I do it smile


2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: Can't believe I fixed it [Re: vwmaniaman] #4683942
03/04/18 10:58 AM
03/04/18 10:58 AM
Joined: Feb 2011
Posts: 2,039
California
Stelth Offline OP
Stelth  Offline OP
Joined: Feb 2011
Posts: 2,039
California
Originally Posted By: vwmaniaman
Once met an old man at a flea market, he had a trailer full of weed eaters and saws and the like for sale. I asked him how he got all of them and how he fixed them. He said he added a quarter cup of sea foam in the tank first and some gas. I had a weed eater that came from my Dad's shed. He passed away like 12 years ago. it had sat all that time. Son added 2 stroke gas and tried to start it with no luck. I went over to it and added the sea foam. It started on the third pull and ran fine again Used it all afternoon on leaves. I'm a believer.


I'm going to keep this in mind. I have some other OPE that hasn't been run in a while. Thanks.


Experts are often wrong, but rarely in doubt.
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