Diagnosing a Briggs V Twin that won't start.

This 22hp Briggs and Stratton riding mower will not start. let's have a look around and see if we can figure it out.
#ridingmower #craftsman #husqvarna #ridingmower #briggs #b&s
Check out dozens of my videos here -- / hd883dd
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[@francisreese7313]

I have been going crazy for over a week trying to diagnose my mower. After watching your video, I went out and found that the same hose had dry rotted. Fixed! Thanks for sharing your information.

[@randomwrenching]

That's awesome Francis, glad I could help! Just this morning I posted part 1 of the refurbishing video I made on this unit.

[@BrucesShop]

Funny how some guys miss the basics. Nice work on finding this basic trouble. Fuel air ignition. YEAH.

[@randomwrenching]

Sometimes you can overthink a problem. Start with the basics, go from there... Thanks Bruce! 👍

[@len4338]

I didn't know that running a low battery could ruin the stator or alternator whichever you would call it. Good to know, not that I have a machine that has one but maybe some day. Thanks for another great video.

[@randomwrenching]

I have seen it a few times on riders. It's not super common, but the cost of a stator repair isn't work taking the chance of burning it out.

[@stevefranklin9920]

Haven’t watched the whole video yet, but here’s a tip for you folks that might have similar issues with fuel. Check your oil level first. If it’s overfull, smell the dipstick for gas. It’s a possibility that the diaphragm in your vacuum fuel pump is ruptured and pumping fuel into your engine. Second, take the fuel line going to the carb off the fuel pump and replace it with a foot long piece of 1/4” fuel line and route the other end away from the muffler. Try to crank it while watching the end of the line to see if gas is being pumped out in a sufficient amount. If it’s not, you need a new fuel pump and an oil change.

[@randomwrenching]

Great comments!

[@waynecampbell9693]

I had the problems with mine yesterday and the problem was with the throttle cable .When it was in the Choke position it really was choked

[@jp-us9rq]

quick fix thats what i like to hear when something breaks down

[@randomwrenching]

Yep, the fix was easy. Sometimes people just get hung up on the diagnosis.

[@Rein_Ciarfella]

Don, I’m not clear on what that plastic piece was that you showed was blocked after 7:45. Also, in my diagnostic process for a suspected no fuel issue I would have gone for the quickest, easiest check first and disconnected the fuel line downstream of the filter to confirm everything upstream of the carb was working. If still no fuel I would continue upstream. The last thing I’d check is the carb because that takes the most work to get at in this case.

[@lifeononeweel3008]

Nice vid

[@StevenmHall]

You know what alot of people don't do first , and that is , in the tank , on the bottom where the nipple drains the fuel , it gets plugged from dirty gas cans to where just a little amount of fuel drips down, I got a piece of wire and low and behold it started and ran great!

[@randomwrenching]

I have also seen that problem. It's not super common, but an excellent thing to keep in mind. Thanks!

[@Jose-wq9nv]

Thanks, it ended up being the same wire issue for me 🤦 😬😤

[@randomwrenching]

Glad it helped!

[@philliphall5198]

Where is the best place to buy a new Honda GX270 horizontal complete engine ???

[@randomwrenching]

I really would have no idea where to send you. You'll have to call around and find one.

[@liberty7835]

Thanks man bingo fixed my E180 JD👍

[@Rein_Ciarfella]

Don, what jump starter did you use in this video? Do you recommend it? Does it charge or only jump?

[@randomwrenching]

I use a JNC660 jump pack. Best one I've ever owned.

[@kgsalvage6306]

Would you know if the 24hp V twin has a cam compression release? Mines locking up when starting. I set the valves. New battery. If I hand turn the engine to just over a compression stroke, it turns over fine.

[@randomwrenching]

It absolutely has auto decompression built into the camshaft.

[@danielrandall2081]

I have same issue there, I'm thinking it's adjusting the ovh some that is the fix but not sure.

[@GeneralPatton31]

Mine wont start ive tired a little starting fluid and all it does is white smoke and kick cant figure it out

[@brub5174]

That's probably internal problems

[@waynecampbell9693]

I had the same problem yesterday.It was the throttle cable and choke position and it still wouldn’t crank. I went. around to the front of the mover to the carburetor and pushed the chocked all the way up and it started and it ran until I turn the key off . I tried cranking it again with out pushing the chock my self and again it wouldn’t start again. I pushed the chock all the way up again and it started again.. I plans to try to proposition the cable and that done work then off to the parts store or Amazon. Hope this help.

[@randomwrenching]

Thanks for the comments Wayne!

[@len4338]

So when the pump fills the bowl, what happens to the excess fuel ? Does it build up pressure in the line and restrict the pump ? How does that work with machines like that ? On 2 strokes there is normally a fuel return is why I'm asking.

[@randomwrenching]

The low pressure created by the pump can't flood the carb as long as the needle/seat are doing their job. The pump just makes a little pressure but fuel doesn't move.

[@brub5174]

I got a problem on my vtwin, it will start on choke, once i release it, it stalls. You got an idea? Sparks were replaced recently, carburator is cleaned 3 times in the last weeks, fuel filter is new, fuel line isnt clogged It seems to be something messing up the fuel air ratio. But i'm not seeing it 🥴 So messed up

[@mudko3589]

Valves?

[@skatingrednecks2086]

My 24hp is doing the same thing I can put my hand over the intake and get it to run perfectly.but dies when I take it hand off.

[@mudko3589]

@@skatingrednecks2086 does your idle linkage move /work when you adjust the throttle ?

[@brub5174]

@@skatingrednecks2086 my model had the Nikki carburator. Which is an absolute shit carburator, almost every problem I had was involving this. But I struggle to find a replacement with how the linkage is positioned. So check this anyways, but it seems like you are getting in false air

[@brub5174]

@@skatingrednecks2086 or you might be running lean. And by covering your intake you are basicly choking it yourself. Open and clean the carb. If you completely cover it while starting, your engine should not even be able to crank. If you can, no doubt sucking in air somewhere else

[@megooderthenyou]

Come on man when we gonna see my mower !

[@randomwrenching]

Which mower was that Josh? I do so many I forget which one is which...lol

[@philliphall5198]

Those hoses don’t last but top of 3 years and I often replace them I just check every one

[@randomwrenching]

Good info

[@bkj242]

Great, really nice!

[@mumbles552]

I had a similar problem with my Briggs opposed twin. it would start and idle fine but would start crapping out when the throttle was opened. it took a while but I finally traced it down to the pulse hose, which was filled with a whitish goo. After cleaning it out, the machine runs like new again!

[@randomwrenching]

Good catch on that pulse line. I love the sound of those pancake twins!

[@calebmcmillan7566]

What is the polse hose

[@mumbles552]

@@calebmcmillan7566 The pulse hose runs from the crankcase to the fuel pump. It transfers the air pulses in the motor to the pump to make the pump work. It's the same idea as fuel pumps used on outboard motors.

[@calebmcmillan7566]

@@mumbles552 mine starts on starter fluid

[@rotwiler7674]

I have a 2011 Briggs intek v twin 26hp, with only 42 total hours. I had surging issue for past 2 years. but always started and ran and never stalled. Decided to replace carb to stop the surging since I moved to house with 1 and 1/2 acres opposed to old house with little less than 1/2 acre. Once I replaced carb, I used fluid to start it, so gas would fill carb, took 2 times and ran okay, had a slight surge, but nothing like before. Then tried to start even when warm without starting fluid and just turns over, but does not start. Thought I was out of gas, so added gallon, same issue. Fuel filter has gas in it. I am now trying to figure out what is issue. It is a aftermarket carb, so maybe the fuel solenoid is bad from the start. I have never dealt with lawnmower engines. Fuel pump should be good, I also tried different spark pugs, replaced fuel filter. I did notice the fuel filter is about 1/2 full of gas, not sure if that is normal, my old fuel filter was white, so was not as easy to see fuel. There are a few dry rot cracks in the ohv vac line, but ran before all this and I never removed it, I ordered another to see, awaiting it to arrive. Mower is a Craftsman YT4500.

[@randomwrenching]

Surging is almost always a lean condition. I have had no luck with the cheap amazon carbs, but quality aftermarket ones seem to be fine. Id do a fuel feed test by taking off the hose at the carb and cranking it over to see if it is pumps enough fuel into a container. A weak fuel pump may not work well enough to feed the carb at cranking speed, but may flow just enough when you use starting fluid to get it running. Air bubble in a fuel filter is normal. Also, make sure the choke linkage is set properly so it closes the choke butterfly completely in the choke on position. Those two things are where I would start. Fuel flow at cranking speed, and choke plate fully closed.

[@forrestdoody2059]

GOOD JOB !!

[@randomwrenching]

Glad you liked it

[@BuyingSouthFlorida]

Very helpful, thank you! 🤙🏼

[@burtburt1755]

Good job. Thanks for sharing your knowledge. I do have a question: Do you know if the cam in that motor has a compression release on it it? Thanks for your help. This is the first video of yours that I have found and I subscribed to see more. Thanks again.

[@randomwrenching]

Thanks for watching! For sure this has the decompression mechanism built in.

[@billbray8797]

I thought we were going to have a Carl moment from Slingblade. It ain't got no gas in it.

[@randomwrenching]

Well, it ain't got no gas in the carb, that's for sure! LOL

[@Rodger-j8p]

Everything is working, it's just not firing.

[@brub5174]

I had something similar, my I had short circuit in my key, Which made it think it was OFF

[@ayas.m.g7969]

Como é a ligação do comutador de ignição desses tratores cortadores de grama? Como é o esquema de cores? Estou usando um motor briggs exi2000 de 20 HP e sai um conector com fios vermelho verde... e o cinza e preto vem do solenoide do carburador. Não encontrei o esquema de ligação no manual.

[@randomwrenching]

O Google tradutor é o melhor que posso fazer. Tomara que o português seja a língua correta... Existem muitos interruptores e fios diferentes que mudam com diferentes modelos e anos de tratores. Você terá que encontrar o diagrama para o seu modelo exato de trator para obter a maneira correta de fazê-lo. Desculpe, não posso dizer qual é qual.

[@ayas.m.g7969]

@@randomwrenching Thank's!!! That's ok. Very nice!!!🤝🤣🤣👏👏👏

[@ayas.m.g7969]

@@randomwrenching To Briggs exi2000 twin Alternator is 16A 30VAC. The batery is a 12V? or 24V?

[@randomwrenching]

@@ayas.m.g7969 Should be 12v. Alternator outputs AC volts, then gets rectified to DC volts

[@ayas.m.g7969]

@@randomwrenching Thank's. That's right 🤝🤝🤝👍👍👍🤣🤣🤣

[@jamessterling2189]

yes I have a Briggs & Stratton 24 horsepower was mowing it died got fire going to it bowl is full of gas but won't start just turned it over you can spray starting fluid in it it starts up

[@randomwrenching]

Does it fire then die when using starting fluid? If so, it's not getting the fuel from the bowl up into the engine. I'd start with checking the fuel shutoff solenoid under the carb bowl to make sure it's working properly.