Briggs and Stratton popping and missing

  Рет қаралды 233,647

Johnson's Small Engines

Johnson's Small Engines

6 жыл бұрын

This is a no start condition on a single cylinder Briggs & Stratton 19.5 hp overhead valve engine. Briggs and Stratton Engine is popping and missing.

Пікірлер: 99
@osbornebay944
@osbornebay944 5 жыл бұрын
Nice to hear the engine passing your home. Our local train stopped running for the last 10 years due to stack holder in fight.
@johnobiro5202
@johnobiro5202 2 жыл бұрын
I’ve seen that problem lots of times. I don’t know why they don’t lock tight them in at the build stage. Great video buddy.
@dozer8065
@dozer8065 4 жыл бұрын
awsome informative video my man,, and much respect to doing it one handed, i cant say how many times ive bitched about needing 4!
@battmann678
@battmann678 3 жыл бұрын
Saw this exact same issue on another channel. Was the same mower too. Seems that stud problem is a real issue with this mower. The other engine had a valve rotater that fell off but was contained by the valve cover. Good vid, thumbs up.
@Hubjeep
@Hubjeep 4 жыл бұрын
I have that same Milwaukee ratchet, it's one of my favorite tools!
@dangerous119
@dangerous119 2 жыл бұрын
Same exact thing happened on my 18.5 hp Briggs last weekend. Thanks for sharing the info.
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
I’m glad it was helpful! Thank you for watching and commenting:)
@MichiganBruce
@MichiganBruce Ай бұрын
THANKS BRAD!!! I had a bent pushrod. Replaced it and runs great. Thanks again, YOU DA MAN!!!!
@JohnsonsSmallEngines
@JohnsonsSmallEngines Ай бұрын
I’m glad all worked out and you’re back up and running! Thank you for the kind comment. Please give this video alike and share my channel to help it grow. It would be greatly appreciated!
@davidprodigy5833
@davidprodigy5833 5 жыл бұрын
Is the back firing popping bad for the lawn mower if the (riding lawn mower cub cadet) still runs otherwise?
@franklauriekranitsky2782
@franklauriekranitsky2782 4 жыл бұрын
Good video! Would have liked to see the repair also!
@roberthendricks1453
@roberthendricks1453 4 жыл бұрын
Thank you. Very good information video.
@wayneasiam65
@wayneasiam65 Жыл бұрын
Excellent advice on this. Thanks!
@JohnsonsSmallEngines
@JohnsonsSmallEngines Жыл бұрын
Hi Wayne, I'm glad it was helpful and thank you for the kind comment. Please give this video a like, subscribe and tell your friends about my channel to help it grow. It would be greatly appreciated.
@SeeMooreVids
@SeeMooreVids 4 жыл бұрын
Great find
@rabaloo6549
@rabaloo6549 2 жыл бұрын
Yes, great video. I think my rocker backed out. Thanks for the video.
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
I'm glad it was helpful. Please give this video a thumbs up to help the channel! Let me know how you made out?
@brikeibur123
@brikeibur123 4 жыл бұрын
Very informative, thank you.
@harpoon_bakery162
@harpoon_bakery162 3 жыл бұрын
found this video from your recommendation to me on another of your videos. my rocker arm was identical to this, extremely loose, i took the head off and the valve seat was displaced with the valve stuck on it. also the head-gasket was blown in the typical spot. But my engine is a Briggs & Stratton 18hp OHV Intek, known for blown head - gaskets. I did notice that there are stress fractures in the aluminum on the inside but not on the smooth part of the aluminum where the head gasket sits. It's inside on the intake side, multiple stress marks/cracks. I think i'm good on that but i'm not a metallurgist and i figure you have seen that on these B&S aluminum heads more than once and I value your opinion....THANKS.
@FlySafe1000
@FlySafe1000 Жыл бұрын
Excellent video. Thank you Sir.
@JohnsonsSmallEngines
@JohnsonsSmallEngines Жыл бұрын
I’m glad it was helpful. Thank you for watching and the kind comment.
@dannylinc6247
@dannylinc6247 2 жыл бұрын
I've seen where the keeper for one valve was not present on diagnosis and disassembly. It was not found either. One was obtained from a donor mower with a bent crank. Not made in USA and it shows.
@lburkee
@lburkee 4 жыл бұрын
Mine was doing it when it was running i traced it back to one of the spade connectors on one of the coils it wasn't loose enough to fall off but the vibration of the engine would cause it to lose connection while running.
@royalspin
@royalspin 4 жыл бұрын
Great explanation and concise . I was looking for something different but decided to watch this anyways and learned something . I'm wondering if that stud had any loctite to begin with .I've had unpleasant surprises before like four bolts on a steering column in my Pontiac that should of had it from the factory but didn't and backed out . So much fun 👍... NOT !! 😹
@rwaltonjr
@rwaltonjr 4 ай бұрын
I have one that starts fine. At low throttle, it runs fine. As you throttle it up, it pops and backfires through the carb. New carb, intake, coil, plug, fuel filter, and fresh gas
@JohnsonsSmallEngines
@JohnsonsSmallEngines 4 ай бұрын
Cannot diagnose without seeing the machine but a guess would be You could have a bad new carburetor. OEM is the way to go. I haven’t had much luck with the aftermarket Briggs carburetors on the single cylinder or twin engines. Or it sounds like valves issues or a possible slightly sheared flywheel key. Most likely a sheared flywheel key will pop and miss all of the time and you said it runs good at idle. Check spark plug gap is at .030”
@STAT303954
@STAT303954 2 ай бұрын
Have tou fixed yet?
@rwaltonjr
@rwaltonjr 2 ай бұрын
Not yet. Haven't had much time to mess with it.
@loganjohnson1375
@loganjohnson1375 2 жыл бұрын
Great video!
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
Thanks Logan, I’m glad it was helpful. Please give this video a thumbs thumbs up, subscribe and tell your friends to help my channel grow. It would be greatly appreciated:) thank you for watching
@hosscaddy
@hosscaddy 3 жыл бұрын
Ty for this video. I’m having a similar issue but mine will run but is poping real loud and won’t throttle up. It only idles so I’m gonna check this
@ClTlZEN_X
@ClTlZEN_X Жыл бұрын
I have the same mower. Was working fine before. Today, I started it and didn't move the handle from Choke to Run in time. The engine stalled. Now trying to start and what I get - very loud pops. Tried twice. I guess I'll let it sit overnight and try tomorrow. I'm not knowledgeable when it comes to engines.
@davessmallenginerevival2847
@davessmallenginerevival2847 6 жыл бұрын
Hi just subbed. I've seen the rocker arms come loose but I've never seen the stud back out like that
@jacon99able
@jacon99able 4 жыл бұрын
Any follow up video with repair steps?
@rafaelcabrera7570
@rafaelcabrera7570 Жыл бұрын
Thank you so much! 👍👍👍👍👍
@JohnsonsSmallEngines
@JohnsonsSmallEngines Жыл бұрын
I’m glad it was helpful and thank you for the kind comment. Please give this video a like, subscribe and tell your friends about my channel to help it grow. It would be greatly appreciated. Thank you for watching.
@Elmo_Fuddleputt
@Elmo_Fuddleputt 5 жыл бұрын
Thanks for the video. I appreciate the knowledge drop.
@themadtatter4055
@themadtatter4055 3 жыл бұрын
Tyvm sir do you so bad that's why this machine thanks for watching
@arealocal
@arealocal 8 ай бұрын
Hi Brad. I have a lawn mower with a Kohler 775 and I hitted a rock. The piece of metal that hangs the blade to the camshaft broke, but, after that, the engine started to pop and miss. I thought it was the flywheel key, but it´s OK. The spark plug is OK also. I don´t see any leaks and the camshaft is perfectly alined. What do you think it could be? Thanks!!
@JohnsonsSmallEngines
@JohnsonsSmallEngines 8 ай бұрын
I will assume that you mean 7.75 hp. Normally, it’s just a sheer flywheel key. Will it run? I don’t work on those engines any longer, so I do not know of that engine type. Without seeing the machine and listening to it. Impossible to diagnose. You may have heard the internal parts of the engine? Just guessing.
@j.c.holguin7007
@j.c.holguin7007 4 жыл бұрын
Wife was mowing w 2016 last year, cutting w mowing deck on 1, said it quit on it's own , last year. Finished the season w push mower. The flywheel fan broke in half, looked melted, got plug wire. Replaced magneto & fan assy, cleaned fuel bowl , repl fuel & filter, spark plug. Backfires out exhaust. I'm pulling the valve cover, any other suggestions??
@j.c.holguin7007
@j.c.holguin7007 4 жыл бұрын
Btw, one arm, I'm impressed. I have one eye, and complain all the time! Ty for being precise.
@boltonky
@boltonky 5 жыл бұрын
I still don't know how this happens to people, poor maintenance but after 260hrs and only oil change i still had factory valve clearance not to say i didn't have other problems but was a flow on effect from poor ignition
@hustlerbiden6815
@hustlerbiden6815 5 жыл бұрын
It helped
@chevinbarghest8453
@chevinbarghest8453 2 жыл бұрын
When checking fuel solenoid, remember to put the parking brake on (safety cut off) ..... so the circuit is live.. or sit on the seat...
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
Good point!
@skyman06
@skyman06 4 жыл бұрын
What if it starts and runs, but is backfiring, especially at idle?
@johnwilson7809
@johnwilson7809 3 жыл бұрын
Air/fuel mixture is out of adjustment.
@daphnekite578
@daphnekite578 Жыл бұрын
Hiya. I have a briggs and Stratton quantum self propelled mower. It ran out of oil popped now won’t start. Just pops . It has compression as I can pull cord with tension, any ideas as I can’t afford a mechanic . Thanks
@JohnsonsSmallEngines
@JohnsonsSmallEngines Жыл бұрын
Running it out of oil definitely hurt the engine. From what you have told me, my guess would be either a sheared flywheel key or valve issues. I do not have any videos on those issues for walk behind lawn mowers.
@deant6627
@deant6627 3 жыл бұрын
Hi Brad, what run in procedure would you recommend for a new briggs V twin?
@JohnsonsSmallEngines
@JohnsonsSmallEngines 3 жыл бұрын
Change the engine oil and filter after the first 8 hours of use. After that just perform the preventative maintenance schedule in the owners manual.
@deant6627
@deant6627 3 жыл бұрын
@@JohnsonsSmallEngines thanks, is it advisable to not do full throttle and heavy use for its first few hours?
@JohnsonsSmallEngines
@JohnsonsSmallEngines 3 жыл бұрын
Unless your owners manual says otherwise, full throttle is ok.
@shortwavesurfer
@shortwavesurfer 3 жыл бұрын
Is this issue causing Popping and missing or no start ???
@JohnsonsSmallEngines
@JohnsonsSmallEngines 3 жыл бұрын
Both, it is pop and missing and will not start. If your engine is running popping and missing but you are able to use the machine, you have other issues like possibly a bad carburetor or bad spark plug.
@arciefan
@arciefan 10 ай бұрын
Or sheered flywheel key or bad valve adjustment
@swiss6253
@swiss6253 2 жыл бұрын
So how do you do the rest of it then? Do you need to have measuring shims to tighten it down a certain amount? My mower has started popping/backfiring especially when hitting bumps, almost stalls out sometimes. Replaced the spark plug, air filter, and checked the flywheel key. Was going to test magneto but supposedly checking the ohms is pointless.
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
Your engine runs, this engine does not. You most likely have a carburetor issue.
@swiss6253
@swiss6253 2 жыл бұрын
@@JohnsonsSmallEngines Okay, I'll clean that too.
@swiss6253
@swiss6253 2 жыл бұрын
@@JohnsonsSmallEngines Adjusted valves, fuel filter, cleaned out carburetor... Ended up being my damn seat safety switch. I ended up testing that out because sometimes it would nearly stall when turning. At least I know my hog is in tip top shape 8)
@_Vip.Memes_
@_Vip.Memes_ 2 жыл бұрын
CHECK YOUR BATTERY TERMINALS ARE TIGHT😂😂
@swiss6253
@swiss6253 2 жыл бұрын
@@_Vip.Memes_ It was the seat safety switch, same principle though 8)
@philward7130
@philward7130 5 жыл бұрын
It looks like the exhaust valve is stuck open.
@edwardknox7506
@edwardknox7506 4 жыл бұрын
mine was a bad coil
@TommyZTrains
@TommyZTrains 5 жыл бұрын
Nice "kill" :- )
@DeeRuss
@DeeRuss 3 жыл бұрын
This is only happens when I turn the blades on it pops and slows down
@danielrisnes3117
@danielrisnes3117 2 жыл бұрын
Same here🤔
@bradkerr2798
@bradkerr2798 2 жыл бұрын
@@danielrisnes3117 Most likely a carburetor jet or fuel supply partial blockage (dirty carb jets, fuel filter, pinched fuel line, etc) causing it to run lean. This causes lack of power under load (slowing down) and lean misfire (popping). Is still possible to be an a rich misfire (spark plug and muffler outlet will be really sooty), ignition timing or valve issue but much less likely.
@gene2200
@gene2200 2 жыл бұрын
What's the purpose of the selonoid? Engine, 19.5 HP, slowly fowled plug. Mines not clicking. After I made sure valves were right, keyway was fine, was getting gas, great spark, little over 60lbs cylinder pressure just wouldn't start back up. Guess I'll try that, ran fine all season...
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
It sounds like you may have a low battery charge or a safety switch not working if you are not hearing a click. The purpose of the starter solenoid is when you turn the key to crank, the key switch sends power to the solenoid and then the solenoid inside throws a magnetic to the other side making contact internally to send power to the starter to make it crank the engine. Normally when solenoids fail, you will hear a click inside the solenoid but the starter will not crank because the magnetic in the solenoid is stuck. Then replacing if the solenoid will be needed.
@gene2200
@gene2200 2 жыл бұрын
@@JohnsonsSmallEngines found out it was clicking and very hot hr after I was working on it.
@gene2200
@gene2200 2 жыл бұрын
Was the selonoid under the carb, had 10hrs on it. I cut the plunger off and added a petcock on fuel line, runs better than before. A .50cent part from china probably.
@askinggrandpa418
@askinggrandpa418 4 жыл бұрын
Why is the gas coming back from the motor blowing through the carburetor on a Briggs & Stratton 17 and a half
@sirenenundmehr1824
@sirenenundmehr1824 4 жыл бұрын
The same with my 17 and a Half b&s
@reeceraaum9556
@reeceraaum9556 4 жыл бұрын
If it's coming out the carb that means that the seal for the needle is worn out so it is overfilling the bowl of the carb.
@JM-yx1lm
@JM-yx1lm 3 жыл бұрын
@@reeceraaum9556 not on that motor, the flow would go down towards the manifold. Not out the air filter side of the carb.
@reeceraaum9556
@reeceraaum9556 3 жыл бұрын
@@JM-yx1lm Oh right because the air intake goes up
@matthewgarrett3432
@matthewgarrett3432 3 жыл бұрын
Anybody else going to answer this lol been following forever and mine won't run right. Backfire through carb
@ckc3166
@ckc3166 4 жыл бұрын
Mine dose something similar but when it's running it dose it. But when it heats up it stops. And sometimes when I shut it off it makes a really loud pop. When I started it up one day it popped and I think smoke came from the carb. If anyone knows what it means please let me know.
@JohnsonsSmallEngines
@JohnsonsSmallEngines 4 жыл бұрын
It sounds like you may have one of several issues, you could have a failing ignition coil or a clogged fuel cap making it stop when your running it. Does the engine run good until it stops? then after letting the machine sit for a while will it restart?
@ckc3166
@ckc3166 4 жыл бұрын
The motor fires up every time but once it's sat for 3 hours or so when you start it back up and it pops but then when when it's ran for 1 minute it runs great. But every now and then when you shut it off it makes a super loud pop like a gun shot.
@ckc3166
@ckc3166 4 жыл бұрын
When I started it this morning it started popping and then some smoke came from the carb only a little bit tho.
@ckc3166
@ckc3166 4 жыл бұрын
And also the motor is a 19.5 Briggs and stratton.
@ckc3166
@ckc3166 4 жыл бұрын
I've replaced the carb to see if that did anything and it helped a little bit but still dose it.
@duramax78
@duramax78 2 жыл бұрын
Sir my 22hp backfires about every 3 seconds, would anyone know why?
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
That is a little tough not hearing it and not knowing background on the engine, If it is a twin cylinder? Need to know how many hours you may think is on the engine? Any issues with mice in the engine? If yes, could be valves. The twin Briggs also had issues with a plastic intake manifold and poor quality gaskets from intake to engine which could also make a miss or pop. It could also be a little dirt in the carburetor. This is only if your engine is a Twin cylinder Briggs and Stratton.
@duramax78
@duramax78 2 жыл бұрын
@@JohnsonsSmallEngines it’s a bs v twin 22hp, 110 hours, may have issues with mice? Thank you very much for your quick response, it’s greatly appreciated. How do I check valves? Also could it be a coil?
@JohnsonsSmallEngines
@JohnsonsSmallEngines 2 жыл бұрын
I would first replace the intake gaskets to see if it gets better. Briggs part # 594209. They come in a two pack. Much easier to install. If the engine overheated due to mice I would first adjust the valves and unfortunately I do not have a video on adjusting a twin cylinder Briggs and Stratton yet. Somebody may have something on it. An overheating issue is not good as you may have valve seat issues after the valve adjustment doesn’t work. The only way to check that would be to take apart the engine and I would not recommend that for a back fire every now and then. Try Installing the Briggs intake gaskets if you can find a video on that. I do not have one yet. I will at some point but need the machines to come into the shop with the issue to make that happen.
@duramax78
@duramax78 2 жыл бұрын
@@JohnsonsSmallEngines thank you very much gonna take a look at that right now.
@duramax78
@duramax78 2 жыл бұрын
@@JohnsonsSmallEngines just checking my filter, I put a pre filter in, gonna take that out maybe starving.?
@lewishawks2258
@lewishawks2258 Жыл бұрын
But my lawn mower is running but is back fire out of the carbs
@JohnsonsSmallEngines
@JohnsonsSmallEngines Жыл бұрын
It’s impossible to diagnose that without seeing the machine but my guess would be dirt in the carburetor, rebuild or replace the carburetor.
@lewishawks2258
@lewishawks2258 Жыл бұрын
@@JohnsonsSmallEngines no new carb
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