Craftsman With Auto Choke Won't Start Pt. 2
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- เผยแพร่เมื่อ 3 ก.ย. 2018
- This is part 2 of a 2 part series. A modern Craftsman mower with automatic choke won't start. Thanks to Boo (below) he explains that is the the wind vain that takes the choke off.
- แนวปฏิบัติและการใช้ชีวิต
I just realized another good thing about inline fuel shutoff valves??? When running the mower for the last cut in the cutting season, shut off the fuel valve and let the mower carb run out of gas. Then push the mower in the garage for the winter months...Done! Next, I'll install a dash fuel shutoff valve on my Sears 5hp Snow blower, Wherever I can install an inline fuel shutoff an any ground equipment I'm doing it. But, one Spring it took me an hour to find why my tractor wouldn't start. I forgot I install a fuel shutoff valve. Ha-ha-ha! But hey, I'm a 73 yo. These videos from Bruce taught me a lot since retiring, and Bruce puts quality in his work guys. I like that!
I just did that looking for the shutoff to my generator. LOL we are similar.
Man... I took apart my carb like 3 times....first video that solved it...good job sir.. I'm gonna give my mower another chance
Thanks for the nice comment Rich
Great 2 part series Bruce. Interesting seeing how that auto-choke works. Nice fix. Another happy customer, and also another happy subscriber! Thank you sir!
Heh!!! Thanks Mr. Goose.
You are a bad man!
Well done sir!
They don't make'em like they used to.
I learned everything from watching pops.
These young'uns would rather A let the grass grow high or B buy a new one.
So true. Thank you.
Thanks for taking us along the journey! This is the same model as my lawnmower.
They are great mowers.
Nice video Bruce - I just love working on those Quantum engines - even with the auto-choke. Thanks for sharing
Right. The auto choke is a step down.
That start was extremely satisfying. I have the same mower. I'm going to fix mine tomorrow thanks to your help.
good luck.
Thanks for this series. I picked up a Brute (MTD) with the same B&S motor. Diagnosed a missing choke vain spring and spark plug not gapped correctly. Cleaned out the carb while I was in there. Got myself a new self propelled mower now for spring!
Good for you. You fixed it !!!! so cool
Great job again Bruce. I was recently given a machine almost identical to this one. It has several issues and my friend chose to buy a new one. Lucky me.. I am anxious to check it out. Glad you worked on this one!
Good for you. Carb blockages (brass bolt in the bottom) ---- Choke like this one, -----rewinds, ----Stuck cables. Other than that the motors never quit.
Another interesting job. It's always nice when you find something. That's why I like the way to try everything before you start into the repair. Then you know what was what before you start to disasemble and troubleshoot. Well done!!! Take 'er easy!!!
Sometime it does work this way. Others it is tougher as you now. Thanks Grampie
This was exactly what was wrong with my lawn mower. I changed out the carburetor for a new one and still wouldn't start. Thanks for making this video!!! You're the Best👍🏽
You are welcome. Good work you did there.
Coffee and mowers repairs with Bruce ...thank you for sharing your knowledge.
Thanks for the nice comment
Can't have one without the other
Nicely done. Thanks for sharing the essentials of the Briggs carbs. You are right they are simple!
Thanks Walt
This video helped a lot. I have a pressure sprayer with the auto choke. I found it wrong like yours. I found out how to put it correct with this video. Bruce you are awesome. THANKS!!!!
To cool Thanks for the great comment.
I've already done this work. Nice job on this, Bruce. A one-pull start is the satisfying part.
Yes. If they don't start with one pull I just don't feel right. My Stihl blower takes 3. It drives me crazy.
@@BrucesShop I've never had a 2-cycle that started on the first pull. It's just the engine type. Well, you could use starter fluid if you wanted a one-pull start.
Thanks. It drives me crazy. It has a primer too. haha
Another Craftsman saved by the Master him self! Great job my good man! Sean~
Thanks Sean. I guess you just have to keep taking parts off until you find something wrong. Missed you on Sunday Chat. I am sorry. We got back from our trip---- 2000 km's in 3 days Way to much for me.
No worries on missing the show, although, it was a great one. Everyone throwing one liner jokes here and there. Was a good time for sure and Miss. Zippo was in attendance! Hopefully we'll see you next weekend. Sean~
Another job well done by Bruce's small engine repairs. Great find Bruce!!
Thank you Paul.
thanks, after watching both videos, I took the carb apart and cleaned it like you showed - it went from not running to first pull full power - very good
That is so cool.
Thanks for the videos Bruce. Had an old lawnmower given to me and was having all kind of issues getting started even after the replacement carb. Turns out auto-choke was in front of the lever as well.
Thanks for this I needed a good comment.
Thank you so much for making this video. My problem was the exact same as yours. Once I fixed that, the thing finally started right up. All I have to do now is get my blades sharpened.
Good for you !!!!!
My mower and snowblower are in top shape thanks to your knowledge. I even made a tidy profit by fixing a few mowers.
That is so cool. Thanks for the great comment
I have learned something today! I did not know about draining the oil from the bottom of the deck. I've been tipping the mower over to drain it. Thank you for this!!
Some ===as the Honda they have to be tilted unless you have an extractor.
My mower is the self propelled version of this one so should be the same I think.
Issue I'm having is it won't start at all. Cleaned carburator, checked flywheel key, new spark plug and still nothing. Last time it ran, my son got the chute clogged so he started slamming it up and down trying to clear it. Then, it stopped running and hasn't ran since.
I agree carburetor was on way to tight. Great job as always Bruce customer should be happy. Have a great week. God Bless!!!
Thanks Mr. Nash
Watching you work on mowers is like watching Bob Ross paint.
And in both cases, I feel like maybe I can do this. :)
I think you can do it. Just take the happy little wrench and turn the little bolt lol
Tats a gallant effort eah! -most awesome
Thank you for the most comprehensive and clear explanations. I am working on the exact same problem right now. Just finished cleaning the carburetor and having same problem. Will be checking the choke next; mine also momentarily runs when gas sprayed into carb then stops. Fingers crossed! BTW: You are correct about the over tightened bolts; another video says proper tightness is 7.5 fp . That is about one little sinch for those without a torque wrench.
Good luck
Thanks so much Bruce. I just fixed my machine by following your instructions. Thanks again! Gracias Bruce
Perfect
Great job Bruce love how good u r at what u do
Thanks Bigbadmowwer. It means a lot coming from a mower guy like you.
Thanks for helping me understand better the relationship between the air vane and the carb. By the way, using the magnet to "grab" those 3 nuts holding the gas tank is a nice tip. In the 21 years that I've owned my Deere walk behind with Briggs engine, I must have removed that gas tank 10 times and usually drop a screw or 2 when fishing them out of their recessed housing. Also, I never thought to use the discharge chute to peek under the unit while changing the oil. Thanks for that also.
Anytime I handle the oil dipstick tube assembly I thoroughly clean any dirt and gunk that is present in the area around the tube insert. Should that tube pull out entirely (easy to do) the debris is sure to fall into the oil sump. Best to you.
Great comment Tony
Awesome Bruce. 👍👍👍👍
great job bruce you saved another craftsman,enjoyed the two part vid,
Thanks Clinton.
Nice one Bruce. Informative and some good humor to boot!
Canadian Mowers are so clean and well Maintained from what I can see.
Not like here in GA. They are ran for months and serviced when they totally fail
Repaired (Hopefully) On - the -Cheap!!!
-Bob. Athens. GA
Thanks. Great comment.
Excellent in so many dimensions, good on the repairs but I found more value on the work setup and all the tricks, you find ways to work comfortably, I love it, nice garage, silence, peace and quiet, perfect way to work, seems like you have paradise and heaven where you live, I hope it is on the country side.
Well sorry, I am in the middle of a city of 100,000. Big lot at the end of a close.
Nicely done Bruce!
Thanks for the pleasant comment Mr. Lawyer. I just had a crappy one on a different video. (A Stihl Leaf Blower That Bogs Down) You made my day. I know putting yourself out there is a risk but sometimes it hurts.
Another good job Mr. Bruce.
Thanks Danny.
Bruce, you saved my security deposit! My problem was not the carburetor either. It also wasn't the auto-choke. It was what you said at @7:00. I took off all of those engine covers and checked too see if the ground was separating from the coil when I pressed down in the bail... nope! Somehow it got bent. I took some pliers and bent it so that they separated when I pressed the bail down. Thank you again!!!!
That is great you got it fixed. You made my day. This is why i am on You Tube.
Good job Mr Bruce
Thanks for the great repair video. It helped me, because I have that same craftsman mower and the same problem. I was able to fix it.
Great to hear! You made my day
Great job good sir, Watching you taught me so much about mowers Because of your vids I was able to fix my mower. Thank you so much, you saved me from spending hundreds on a new mower. God bless and thank you again for your content. You got me to sub, now I'm binge watching all your vids😉😉😉😉
That is a lot of vids. Thanks
Don't forget to attach the thinging a jig to the whatchama call it:) Good job.
I agree completely with all the viewers complimenting you on your repairs but not on your cleanup afterwards.
Bruce you are Awesome keep up the good work nice job
Thank you Harry
Excellent video and presentation....
Thank you
I have a craftsman, pretty much like yours. It's doing exactly the same thing. I now feel like I might be able to tackle the problem, hopefully with the same outcome.
Well good luck and thanks for watching.
Thank you for educating us diyer’s wish you lived close to me.
Great tutorial. Very informative
Thanks Mark
Great Video again ( Encore' ) Non'c Bruce...........
3 things I want to mention to you and your viewers ............
1st... Yes the ratchets you use are the best for us small engine guys.... The Craftsman and Snap On type round heads are the fine click type used by Aviation technicians and other types of Techs for tight fitting and small areas where a few clicks makes a difference.........
2nd... That gasket on the air box you used is more pricey than the other gasket that comes in the 498260 carb kit from Briggs...... The gasket with no primer bulb hole and the holes for the air box tabs goes on the mower you worked on.......... That way you can save the pricey one for a minor repair........ I don't remember the part number right off the bat.......
3rd... The spark plugs on the 6.75 and a few other models are supposed to be gapped at 25 thousand instead of 30........
Plus Tard Mon Ami ~!~!
Thanks Boo
Nicely done video., i have a electric start similar to this craftsman B&S that won't start. I last had it running a few years ago and it was hard starting then. I have a few new ideas now and so thanks.
Right on
@@BrucesShop wondering where you got your stand. I could see this being useful for more that just working on your lawnmower.
Brilliant video as usual. Very nicely done. One suggestion Bruce if you don't mind. I have the same Lift as yours but I have made the wooden platform a few inches wider than yours. This helps to put the tools and the screws, bolts and any other parts on the platform so you don't have to walk to and fro to your work table to put the tools, screw, bolts and other parts on your work table.
I hope you don't mind the suggestion. Keep up the good work.
Thanks
Yes I have thought about it. My benches are 24 inches so this lines up with the edge of my benches. I do need the bigger width sometimes though, like bigger snowblowers. Thanks Shiraz.
What brand and model number is the lift table? I'm looking to buy one. Thanks.
@@KensSmallEngineRepair Missed the comment. Here is the info Ken
th-cam.com/video/yv7FtFWRHaU/w-d-xo.html
You are doing much better with your camera work. Thanks Bruce!
It is toughto get the subject and me into the shot. I am thinking about it more.
45 degrees. Instead of the lift being parallel to the camera.
Right
I have the Troy Bilt version of this mower that a neighbor tossed out. It would not fire at all with either gas or starting fluid. I disassembled the carburetor and found gray sludge in fuel bowl and center port of 1/2” nut plugged. From what I could tell all passages were clear. Tested with known good plug, tested coil, checked gap, still no joy. I lost track of how many times I dis & re assembled that mower, wondering what I was missing. I checked the kill wire at the mechanism and then pulled the bail. The brakes were releasing but it didn’t move far enough to break the ground connection. I bent that tab up just a bit and the mower started first pull. Still runs a bit rough but now I have a spare /loaner mower!
Cool. Good for you. Some times the brass bolt that holds the bowl on the carb needs a wire poked through it in all directions that can help.
finally part 2 thanks bruce
You are welcome.
Yay, the Craftsman/B&G mower I worked on ripped the gasket when I removed the air filter and it's the same part number! NOW I feel like I'm on the right track here! My gasket was majorly stuck to the carb, took much work to get all of it off.
Good for you.
Thanks for the help! Very good video.
You are welcome.
Bruce it sure looks good. So I would say it was that choke arm.
Because she started on first pull.
I too have a 2012 self propelled she runs great until this year. I was cleaning her up and a ting spring went missing the vane spring. Will I found it but it took me hours to figure out how to connect. All done now.
I need to get a float pin mine seem to have taken off last year so I put a small paper clip in its place. It seams to be not working this year. Gas pouring out of filter area.
I will take apart soon and hopefully I can buy a pin locally. I sure don’t want to use a mail order place.
Thanks for all your help.
Great video and repair Godfather of mowers! Those Auto chokes are a bit finicky.
They are.
Thank you! Great video.
You are welcome!
Nice job Bruce. Purrs like a kitten!
Thanks for watching. These are nice mowers to work on. 5/16, 3/8 and 7/16 sockets.
Thanks for this video! Those vane style chokes are a nightmare. They are really problematic...
Flimsy is the word.
Nice mower thank you for the video
Thanks Joe
Hey Bruce, thankyou for all your advice and guidance. I pulled the head and found the exhaust valve is terrible worn/chipped and appears to not fully seat. The seats look great so I ordered a new exhaust valve. Head gasket looks good. This is a repair for my sister so i'm trying to keep costs low. Cheers!
That is great!!!! If i can add on e thing check the valve clearance with both valves I am sure you know that.
New exhaust valve arrived. It's a little smaller in dia but more meaty. Anyways, all lapped installed both valves set to tolerances. Started second pull and runs like new.😃
Great demonstration. I observed by moving the carburetor blade choke could give a clue that if it feels loose, the auto choke might be disconnected. Thanks.
Good luck with it.
Great video Bruce your the best. i have the exact mower i got for free because it wouldnt start. i replaced the carb new plug,new airfilter,re-gaped the coil , but when it runs about every 10 seconds it putts like a slight misfire. maybe take off kill wire in case there is a short and take coil off and sand the mounting surfaces maybe that will help . its a really nice machine
Just keep working on it if you have time.
if the flywheel key shears slightly, the engine runs rough or misfires. hope this helps.
Good point. If most things don't work and it still backfires it could well be a key. Sanding the surfaces of the coils usually doesn't help.
Good job!
Thank you! Cheers!
Hi Bruce thank you have the same lawn mower it starts and then I shut the lawn mower off the choke doesn’t close so now I need to order the thermostat piece in order for it to restart
I would check the choke linkage under the shroud first. Make sure it is not stuck or bent.
nice job. I believe the ready start engines spec a .020 gap on the plug. I have run them at .030 and have not had any issues. Sometimes at .020 the engine skips.
These are 30. Flathead Briggs rj19lm
www.briggsandstratton.com/na/en_us/support/faqs/browse/identifying-the-correct-spark-plug-and-gap.html
nice job bruce
Thanks again EB
Bruce remains undefeated
Thanks Dave. I just had one defeat me. Film at 11 haha
Informative I have that same problem I'm just waiting for the parts to come in
Best of luck
Thanks for the step by step,... here in Austin tx, we have bulk trash about twice a year, it amazes me how nice of mowers that people throw away, I got 2 weed eater brand mowers I'm working on now, they have the Briggs motor with plastic carb, do you have a videos on how to hook up the 3 tiny springs to the throdel & gov , it's such a fine setting, got the first one going but wants to run wide open, I even have the second one to use as a refrance, ....just need to keep tinkering with ...thanks again, what type of oil do you like, it looked very clear ( if you give them a plug, they may send some goodies;)
Ok if it is the older plastic carb like the following video watch the hook is nice and loose that goes into the wind vane hole and also at 19:33 in the following video (not the one above) you should see the springs
th-cam.com/video/napEqitOk7c/w-d-xo.html
Sometimes I take something apart and put it back together again and it works...mystery repair.
Lol yeah ! Been there!
another fine job by the lounge singer lawn mower mechanic....lol
thank for the video
Thanks for watching.
Great 2nd half. Do most newer Briggs and Stratton‘s have that same setup for the automatic choke? I think I worked on one similar to the one you just fixed.
Well the newer one are autochoke like this. I get about half of each. The primer ones are older.
Oh boy I heard the cops man.... Hide Bruce, we will all say you were with us..... We got your back.... LMAO..... Great video.
Thanks. I live close to the station. It is both fire and police to save money That works great.
I will check that next. I swapped carbs, didn't think about the round rubber gasket, did look for cracks in the intake tube though. Too many projects, to little time!!!
I get that. I am just getting caught up on the mowers. Snowblowers are starting to show up---- plus my own too.
Well... I did the carb spray test, no change, the 6.75 is running with a miss that won't quit. Is it possible that the coil could be my problem. I checked the flywheel key, it's right on the $$$. It's got to be something I'm overlooking? 🤔
You are on the right track. If is an old machine with lots of hours. Then I would check the valve lash.
Zed bend of the throttle linkage. Can tell it's a Canadian thing! :)
right
Love me a good Zooba!!
Yes they are really something. haha
Well if would have read the comments I would have known. 60 hours a week at work has gotten the best of me
Sorry i already commented too.
Case solved. Wonder how that choke leaver got like that?
They are flimsy. Most likely a drop or me mucking around haha
nice
Bruce-
Thanks for all the information you give us in your videos! What are the dimensions of the plywood on your lift table?
I have a lift but don't have the plywood yet. Would appreciate the info!
Thanks,
Steve
This will show the whole thing
th-cam.com/video/yv7FtFWRHaU/w-d-xo.html
Thanks for the quick reply. You are the best!
Great show! So I guess it was the choker. Anyway, it sounded great, and trust that my will sound just as well once I overhaul. By the way, where may I get a table lifter like yours or is it your invention!
This video will hep
That’s a first, using the drain plug vs the fill😁😁
These new ones don't have a drain underneath.
Where did you buy and what is the model number of your hydro lift Bruce? Kudos from South Florida. Grate Job.
Here is an old video
th-cam.com/video/yv7FtFWRHaU/w-d-xo.html
Do you have a drain plug in the bottom of your mower? My lawnmower is 3 years old and no drain plug on the bottom of my mower it's all sealed in on the bottom as of a Briggs & Stratton. I have to use a suction hand pump to pump the dirty oil out of the base by where you fill it up. My mower will not run as of the choke plate will not open and I have to stick a screwdriver in to hold the round choke plate open to get it to run. So an idle spring must be broken or some other connection. After watching your video I will check my mower out as of what you have done.
The newer Briggs don't have a bung. Good luck on your mower.
Seeing the bowl of warm oil has got me hungry for a bowl of warm oatmeal with warm maple syrup drizzled on top of it.....it is a rainy morning here nasty out side
Cool here too.
Bruce, in this video you mentioned regarding the blade , “not too sharp.” Would you please explain why the blade shouldn’t be too sharp?
I mower blades are sharp to a fine edge when you hit anything harder than grass the edge will fold over easier. If it is blunted just a bit they edge will hold better and last longer. When you buy a new blade the edges aren't that sharp for that very reason.
Eaxctly. Bull nosing the cutting end of the blade sightly keeps the cutting edge from being bent too easily from rocks and tree roots and the like.
Thanks
You should always take your plug wire out 🧘at start , like your teaching of lawnmowers 100%
I replied on the other comment I guess you should.
don't ya just love those impact drivers ??
I do now!!!!!! haha I used drills before but just not the same. :-0
Quantum engines. The best engine Briggs & Stratton ever made. And one of the easiest machines to work on.
I agree
I agree. Just wish they had made thos gas tanks better. Dang they separate and leak a lot.
I love your videos
I have a question , I also have auto choke craftsman that I used for only 6 weeks, it's been nothing but trouble
My question is can I disconnect auto choke and install briggs air cleaner assembly WITH PRIMER BULB
No.--- the carb does not have the air flow for the pulse of air. I have done it but you need a new carb too. Do your homework. Sorry
Thank u Bruce
I have a regular carb briggs and stratton also
Same size motor
I'll put that one on with all new gaskets and primer housing
Thank u very much
Keep up the great videos
Did you adjust the lift ram so it drops faster? .. mine drops sloooow when the weight of the mover is on it.
No I never touched a thin. Sorry
Hey Bruce, I have this same mower and had it running and then it suddenly stopped dead. I cannot get it to start now. I have cleaned the carb, checked the spark, checked the compression and checked the choke and everything appears to be good. Any ideas that would help me hear? Thanks for your help in advance!
If it won't fire when you prime the carb with fuel I would try an ignition coil
I’ve got an Ariens Mower with a B&S 6.75 (same motor pretty much) I’ve done all of this, including cleaned the carb twice, my auto choke was also messed up, got that back in line, and adjusted the settings between the marks.
Still runs rough on start, RPM up & down, but if it stays running long enough (10 some odd minutes) it ends up running well. New filter, plug, oil, flywheel key is good,,, I’m completely lost, and about to go over everything again and hope a mystery fix plays, or I catching something I missed! Got any opinions??
Surging is usually a carb that needs cleaning. i wish I was there to help.
Thx, I’m gonna have to go over it again. I also have a theory the auto choke is malfunctioning. It opens way to fast. When I manually push it back a bit, it runs perfect! But if the auto choke was malfunctioning, wouldn’t it not open at all?
Bruce one more question the handle that we pull down to start and let go to stop does not work on mine. Sometimes I don’t even have to pull down to start. And to stop engine I have to carefully remove spark plug wire.
The stop cable that moves the lever by the engine must be sticky. Remove that and see if it can be loosened. Go careful and if you take your time it may be able to be lubricated.
I have lubricated the area near engine where that spring is it Still wont shut off.
What else can I do Bruce.
Thanks
Houli
@@johnhouli3450 This video may help. It is not my video th-cam.com/video/NbQxSWs85x8/w-d-xo.html
@@johnhouli3450 Right This video may help. It is not mine but may get you to the area you need th-cam.com/video/cD0tdiiwD4Y/w-d-xo.html
What way can you take the blade plate off of a victa 4 stroke with out stripping the bolt please.I've tried but the ring scanner slips after a bit of tension.
I have never worked on a Vista mower by that name. I think they are a Briggs and Stratton. An air or electric impact may be the way to remove the bolt. I think they are a standard direction thread??? Have a look. For example are you tightening it buy going to the counter clockwise direction Most likely not. I did find this video but the blade is off and he is taking of the adaptor or boss.
th-cam.com/video/CdLyCd9xv5Q/w-d-xo.html
When you drain your motor oil how much oil will it take to refill the mower?
Usually 500 ml or about 1/2 a quart.
I put film of oil on carburetor so hopefully air filter gasket will not stick next time
Thanks
Bruce, what is the correct height for that float (non adjustable) same problem but my float lean up towards the carb
These plastic floats aren't that adjustable. Is the seat down all the way??
@@BrucesShop yes the seat is down.
Also, do you know the correct coil gap. I've used a standard buisness card defore.
it is 10 thousands but a bussiness card is perfect.