Briggs and Stratton 22hp OHV only runs good on choke. Craftsman tractor
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- Опубликовано: 15 окт 2024
- Here's a Craftsman tractor with Briggs and Stratton 22hp ohv twin cylinder engine which has just been restarted after a couple of years and now runs poorly and even then likes to run with choke on. Diagnosis of issue and removal of intake assembly and full carb disassembly all the way through reassembly to test run.
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I found the ports to the heads were leaking air past the o rings due to warpage. I found the face of the manifold to the carb warped and letting in air as well. I also found that the rubber gasket under the transfer tube had swelled or just mashed so flat over the years, It was obstructing the space around the emulsion tubes nearly blocking them. ALSO, the the gasket under the black thing behind the throttle plates, the old gasket was partly obstructing flow. Glad it worked out for you, just some tips on things I have discovered.
The difficulty in the engine turning over is caused by the valves being out of adjustment. These engines use a compression release on the camshaft and the valves have to be set correctly for it to work.
I've got a 26hp with the same setup. I did a basic quick clean like you said in the beginning and it'd only run on choke. I had a feeling it was gonna take a chemical bath cause it sat for years. I thought make adjustments on the screws but i need this thing to do the work next season.
Thanks for the video. You helped me make a decision.
Have a rebuild kit in hand when you open up one of these older carbs full of O rings, seals, and gaskets that shrink, swell, deterioriate, and crack. Also replace the 2 intake to cylinder square cut seals.
Remove float bowl first, then remove fuel solenoid. You will then see how the plastic fuel tube adapter fits.
Never use a powered driver on carb fasteners.
The 4 studs are not 4mm, They require a female torx socket.
The 2 float bowl screws have JIS heads, not meant for a #2 phillips.
Ty brother, I still haven't got it running, but Your video helped a lot, especially with my springs, lol. I may need a carburetor kit.
I'm glad it ran well after all that effort
Nice! Thank you for all the tips! Save us the time and hassle of getting it wrong the second and third time! 👍
Thanks!
Very good job, have same engine and model and does the same thing you said about diagnosis, thank you again
Just did the valve clearance and that was not the problem, so thanks agan
Need a lot of love and a cleaning
It’s all easy fix and reasonably labor
Fuel filter between fuel pump and carb really helps to keep fuel pump rubber from entering carb
Red or white will both work and a good paper filter from stens
Can't believe your using a power driver on a carb, Good way for things to go wrong in a hurry.
I've done it a thousand times and never had any trouble.. just have to know when to stop
@@TheHomeImprovementChannel yeah me too low power slow and know when to stop. Also have jis bits for yhe bikes!
@@TheHomeImprovementChannel So then you must have noticed that he said he was using a 4mm socket on the 4 studs, which require an E torx socket.
@@steadyeddie7453 Most people don't have an e-torx socket laying around. A 4MM socket fits perfectly as a sub.
Learn control
Air intake gasket goes on after you put the four bolts in. The bolts have heads about an inch from the top that seat into the carburetor body. Note when the first bolt was tighten the gasket popped up. You broke through the gasket as the head was seating into the body. Probably no big deal since this is the air intake and the gasket was still surrounding the bolt holes. Excellent video.
Snickers is a gorgeous doggo!
This is the saddest video I ever tried to watch your wrong in every turn
This is just what I was looking for, I have an almost identical engine with the same problem.
Just took one of these apart today. Something I noticed is that with the air filter still off, the engine wanted a bit of a choke to run smoothly, otherwise it would surge and stall like this engine did at the beginning of the video. This makes sense as the carburettor would be tuned to take into account the resistance of the air filter. Without the air filter there's not enough sunction generated to draw enough fuel through, so it starves itself of fuel.
Big thing is cleaning and getting the jets on the right side, because there difference sizes
On plastic manifold with new seals I still add silicone because they work and leak
Great video. If this doesn't work for you try this. I have cleaned my Nikki double barrel carburetor on a John Deere Z535M 3 times and it would only work for about an hour and then it would start surging again. I had to look elsewhere. So I took out the gas tank a gave it a good rinsing. There was a lot of dirt in the tank. I also removed the tube going into the tank and blew it out. After all that the machine works great so far. I have manged to cut the grass for more than an hour now. Just thought I would mention this because everyone looks to a dirty carburetor first, which I did. I hope this helps someone.
maybe a bad fuel pump
Sir when I work on them which is every day I put a white or red plastic fuel filter between fuel pump and carb
I promise you it will stop a lot of carb problems
I don’t even charge the customer for it
If it runs fine for a hour or so, then surges, sputters, etc, try removing the gas cap. You may also have a clogged vent in the cap causing the fuel pump to pull the gas tank into a vaccum.
This is why mechanics need a license!
Great video thanks for sharing, it was touch and go there for a while but victory in the end!
Are there more Jets than just the main Jet. I have the same more with the same issue, have to run it with choke
I have the same rigg the problem was that the gas line was rotten, and stop running it with the wrong tipe of gas, and fix your problem with the small hose behind the fuel pump,, right in front of you
Good lord. This crapped-up mower first needs a thorough pressure washing. You can bet the fuel tank is full of debris, so remove and flush it. Replace the fuel lines and filter - they are cheap. And NEVER bother to clean and rebuild these carbs unless your time is of no value. As suggested by another commenter here, a new knockoff is $30 on Amazon and installs in minutes. I have purchased two for a 23-year-old machine that gets used every day. That said, this machine has been so thoroughly abused that rough running is likely to be only the tip of an iceberg worth of troubles.
maybe can someone tell me how to adjust the carburetor chokes on the viking mt 6112 zl? engine briggs and stratton 23hp
That is the longest time I've seen someone take to get the bowl off carburetor. You may want to get some help.
Much easier to pull the intake off
which serial number is that carburetor..
THANKS ALOT FOR UR VIDEO.IT REALLY HELPED ME BEING AS I NEVER HAVE WORKED ON A V--TWIN.
Would be way easier to remove the whole intake
DON'T do this unless you want to ruin the carb. He has no idea what he's doing!!!
I agree
Those manifold seals leak most often and have to be replaced once removed
I don’t like the dam plastic manifold eather
Awe man is he really using a screw gun 🤣 I can't you wasted so much time when you should have just took the carburetor off in the first place but instead you have to make it hard and difficult as it seems in this video and I'm not even all the way through 😅
That thing have been rode hard and put away wet. Things, like those bald front tires, tell you how this tractor was not cared for, right?
This mower is an absolute junker.
Needs to take to someone thar knows how to repair lawn tractor.
These engines are notorious for the throttle linkage binding against the plastic intake manifolds, fuel shut off solenoid failures, and failing carburetors. In the case of carburetor failure, do yourself a favor and buy a new Kipa one for $30. Problem solved
And we're am I going to find that carbator?
@@kylehance3960 Amazon
Can’t seems to figure out what carb to buy new? Care to share a link? Appreciate it
My new/used craftsman yx4000 24 Hp Briggs and Stratton . I had to replace fuel pump . It starts and I mowed but it will only run on Full choked. I know not good. Now trying to finish mowing it now
Dies even in full throttle. Is there possible a adjustment to the choke? I see a screw Above the linkage?
@@crimeshaveconsequences4268 Sounds like the fuel pump or carb is defective
Every one is a mechanic these days
Lololo utube fix it ASAP
carb out of turn
The electric mowers are a lot better than these carburetor. My Green works very good
Seriously
Not a good video. Just take carb off have it rebuilt or replaced.
Need two hands to work tools or a camera stand. Lost interest after 3 minutes
My newer videos do utilize a tripod. Thanks