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We have a Craftsman mower (with a Briggs and Stratton engine) that we have not taken very good care of. Not only did we not remove the gasoline before wintering it over, but we also did not maintain the air filter or spark plug. So it was not surprising that when we went to use it this spring it wouldn't start. However, with these simple steps we were able to get it running as good as new.
Total Time: 20 minutes
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We have a Craftsman mower (with a Briggs and Stratton engine) that we have not taken very good care of. Not only did we not remove the gasoline before wintering it over, but we also did not maintain the air filter or spark plug. So it was not surprising that when we went to use it this spring it wouldn't start. However, with these simple steps we were able to get it running as good as new. View the full project here: Fixing a Lawn Mower That Won't Start
I created a video blog on fixing a mower. It is a step by step process. It was much simpler than taking a thousand pictures and typing all that I wanted to say.
It is very professional and you can use the description to find any specific part of the mower to fix. This particular mower I found in the trash. Hope you enjoy!
Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.
I'm looking for assistance in getting my gas lawn mower to start more easily. Last year I had minor back surgery. After that I had trouble pulling the cord hard and fast enough to get the motor to "catch" and run. I often ended up needing to pull the cord over and over to start - probably as many as 20-25 times.
It was maddening, frustrating, painful, and exhausting. I'm 58 years old and not in the best physical condition. The mower is 7 years old. I do all the recommended maintenance. Last year my neighbor was able to get it going in 6 or 7 pulls, so I don't think there's a mechanical problem. It's probably just me. I'm not currently in a financial position to buy a new mower or to hire a lawn care service.
Does anybody know anything I can do to make it easier for me to get the mower started? Thanks for any help.
Hardiness Zone: 5a
Amy from Lafayette, IN
does it have a gas primer button? I have to push mine about 20 times, then it starts easily. Sorry I don't have any other suggestions, other than make sure the spark plug is good, or call a neighbor kid to come over and start it for you.
My husband taught me the trick of using a can of stuff called Quick Start or something like that. It's an aerosol can of something that you spray onto the vent holes of the air filter of the lawn mower and then pull the cord. I think it may be ether. The people at your local hardware store may be able to help you find it. Of course, make sure your lawn mower is clean and in good working order and, as always, be sure to follow any safety instructions on the product. Good luck!
The day they gave those gas mowers automatic chokes was the day I started to loose my religion.
Oh yes I over primed them buttons
I did some ritual holding and releasing the feed handle. and checked the spark plug wire
What works for me is to pop open the air filter tank and send a little gas down the hole to the carburator.
You wait 5 minutes until the gas smell is gone then in about 4 or 5 pulls the mower grumbles. That next try it starts
GET RID OF THE CORD SYSTEM, AND USE A DRILL TO START ENGINE
Editor's Note: I have no idea if this is practical advice or not. I don't know how this would work. Anyone?
Hi I just want to say that I tried what Mr. Thrifty suggested about pouring a little fuel down the hole of the air filter ( I removed the filter and cleaned it too) and the mowre started right up and stayed cranked. I have been so frustated as I can't afford to pay a repairman to even check it out. This was free advise and I am so appreciative! My lawn needed mowing so badly...now I can finish up! Thanks!
I have a an commercial mulcher /mower which doesn't start on occasion. I replaced the spark plug, checked if it had spark after, and then cleaned the air filter by dipping it in gas of paint thinnner. I then sprayed the choke and carburater assembly with (brake) cleaner. I then adjusted the choke handle cable at the carburator site. So far so good.
Spray starting fluid in the air filter hole and where the spark plug goes or put gas in the air filter hole.
I did this when my pull cord reel broke. Removed the pull cord reel assembly. There was a 3/4"nut under there in a cup. The pull cord catches on the cup when you pull the cord. I put a 3/4"socket on an extension that fit in a 1/2" chuck drill. Set the drill on clockwise , hold or secure your mowers brake cable handle and use the drill to turn your engine over. It wont take long so get ready to quickly pull the drill/socket off.
Push the primer about 10 to 15 times before pulling the rope. I know people will poo poo this saying you'll just flood the engine, but I do that every time I start my mower, and it NEVER takes more than two pulls, and usually starts with just one pull.
I have a Briggs and Stratton classic/sprint/quattro, model series 90,000-100,000. I just need a belt, but what size is it?
By Mike from Morbihan, France
Try this Briggs and Stratton parts site:
I have a troy built, Briggs and Stratton, 6.50 self-propelled mower. What size spark plug do I need?
Lawnmower problem. Bought a new Poulan self-propelled in June 07. Briggs and Stratton engine. Very hard to start. Have used twice. Requires maybe 30 compressions of the primer (3 is recommended). I think it's a lemon--but are mower lemons returnable? My guess: needs some carburetor adjustment. Anyone have advice?
As you can't start the mower is no indication that it is a lemon. I would call,a visit is best, the store you had purchased the mower from and ask for a return. What is their return policy? What policy do they have for repairs?Have you called Poulan with your concerns? Did you ask a small engine repair man his opinion?
Ok, there's a reason why we used to call them "Briggs and Scrap Iron"!!! Where did you buy it? Any place with any kind of reputation to uphold should take it back or offer service for the lemon. Personally, I avoid Briggs etc..like the plague!
Anything is returnable - it just depends on the policy of the store and the sympathy of the store manager from which you bought it!
I tuned up my Scott 6.5hp push lawnmower. I changed the oil, spark-plug, put in fresh gas and a new air filter. The mower started, ran for 1 min, then shut off and will not start again. Can anyone tell me what might be the problem? Thanks.
By Mike from Houston
You need to find out if the mower is getting a spark from the coil as it could be a bad coil. It could be the carburetor orifices.. Take a small wire from the bread tie or garbage bags and clean it off then run the wire through the orifice and take nozzle from air pump and blow it out better. Also check to see if the float valve is working as it could be stuck.
Hi Mike, I have had the same trouble. Make sure spark plug is tight. The right oil is in. The lever to lift mower is not down low. Leave a while as might be flooded. Michelle.
I have a Murray 21" push mower with a Briggs & Stratton engine, model year 2015. I've been using it fine for over a year. I keep it maintained: make sure the carb is cleaned, oil checks, nonethanol gas, etc.
I mow my grass every 2 weeks, aside from winter months, of course. Last time I cut my grass, it cut fine. Normally it takes 2 tanks to mow my lawn. I filled my tank the 2nd time to finish up and it won't crank. So, I figure I'd wait until next time, since, I didn't really have, but a couple of passes in the backyard.
Now, two weeks later, it still won't crank. I've taken apart the carb and detail cleaned it and checked it for any cracks or breaks. I know the gas is getting into it, because, I poured out gas when I took it apart. I've replaced the already fine gas with brand new gas, again, I use nonethanol anyway.
I've checked the spark plug, cleaned it off, it's fine. Checked the blade, cleaned it. Checked the oil, it's at a really good level. The pull string is at a fine tension, same as it was when I bought it. It tries to turn over, but just doesn't.
I have purchased a used, well kept Husqvarna self-propelled push lawn mower from a friend. It worked fine last year and this year I changed the dirty air filter, spark plug, and added gasoline and oil. It worked a couple of weeks ago and last night started in order for me to cut for 5 mins. or so. It puffed out white smoke and conked-out. I primed it, but to no avail, it will not start.
My mower won't start and here's the situation and what I've tried so far. It has been running this spring even with a tankful of last summer's gas. But I wanted the blade sharpened and a service (spark plug and air filter check) so I took it to a free community fixit place and watched as the guy removed my air filter which was in pretty good shape with lots of white and just a bit of debris, but didn't see the filter when he replaced it.
He checked the spark plug and sprayed something in the carb and it started right up. I guess he sharpened the blade. Anyway, I came home and the mower ran for about 10 minutes and then stopped running! It wouldn't even turn over. I pulled the spark plug and I don't think it's the same because it's not the part number the manufacture suggested. I purchased a new spark plug. Still won't turn over.
Then I checked the air filter and the one in there now is about 5 years old and filthy dirty. I am not sure why that guy felt he needed to take my good one, but whatever. So I purchased a new air filter, but still nothing. So, is it possible that the mower ran on last summer's gas for a little over a tank then quit?
Also, I pulled the new spark plug and it smells like gas and is wet, does this mean that when the guy laid the mower on it's side to work on the blade that the gas and oil are now in the engine and it so, am I doomed? If not, should I remove the gas and start with fresh - obviously yes, but at this point will it matter? Thank for your help!
I have a Craftsman LT3000. It has been sitting since July. I cleaned the tank and changed the filter and replaced the gas. It will not start and stay running unless I hold my hand over the carburator. When I move my hand away it dies. What can I do?
I own a 6.5 horsepower Craftsman lawnmower, model number 917.377662 which has a Briggs and Stratton 4-cycle engine. It won't start without using a starting fluid spray. I changed the air filter, fuel, spark plug, and serviced the carburator using a carburator kit, with the same results as before. I needed to use starting fluid. Suggestions? Thanks!
By Allan J
I haven't used my mower in about 2 months. I tried to start it today, no luck. I dumped the old gas out and cleaned the filter just like the internet said to do. I just purchased it in May of this year. What do I do?
My Honda HGR 536 lawnmower is not starting. I have tried all the normal things, ie. change spark plug, checked the spark, and made sure it has enough fuel and oil. I also checked that the cut of fuel tap is in the correct position.
By S Jarratt from London, England
I have a Troy Bilt push mower with a 6.75 engine. It has no spark from the plug wire. Any ideas?
By parkercarsfly from Columbus, OH
I adjusted the valves on my 22 Kawasaki engine. It turns over, but it acts likes it has no fire.
I have a Craftsman 6.5 HP self propelled mower. It is maybe 10yrs old and runs great once I get it started. I have the problem every week. I have to prime 15+ times, then pull the thing until my arm is about to fall off. I have had it serviced, oil, plug, carbkit, and the base air cleaner replaced. This one has the primer bulb. It is not bad gas, I drain and run it out every year. Once I have it started it will run and restart without an issue. A week later, same issue.
I have a Craftsman mower, model #917375622. I cleaned the carb and it starts for about 8 seconds then dies. It's fairly new, but I can't get it to keep running. It has a good plug and filter; choke works. What now? Should I try recleaning the carb again?
So what is the next step, when the primer doesn't seem to be working properly?
By Cynthia E.
My mower has 12 volts at the starter, but it will not engage the starter.
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I have a pretty new lawn mower that won't start. The blade won't move and the cord won't pull freely.
By Dec from Ireland
It could be a bent blade. If the blade is bent it won't allow the cord to be pulled out smoothly. Also clean the bottom of the mower, if it caked with dry grass it won't let the blade spin either. If you bent the assembly the blade is attached to you will have to buy another mower. (10/07/2010)
If when you try and pull start the blade is hard to move or jams it is the coil jamming on the flywheel. It will need to be moved back. That's what I think is the problem. If the mower has hit something it can shear the keyway, as this throws the timing out more likely to be the coil, it happens sometimes. (10/08/2010)
I have a 2010 Briggs and Stratton push mower that won't start. It has new gas, the carburetor is clean, and it has a new spark plug. It has been taken apart and put back together to see if it was the timing key, but it wasn't. Before it stopped, it was acting like it wasn't getting enough gas, but was still cutting the grass. Then it died and wouldn't start back up. Could it be the fuel filter, and where is that located? I'm running out of ideas. It was only used 4 times.
By Mac from Altus, OK
On my riding mower the gas filter is located on the gas line just before the line enters the carb. Not every mower has a filter. Do you have the owners manual to look at for this info. With ethanol in the gas and if the mower is not used often the gas can be a problem. I would look to see if the gas is getting to the cylinders. If not the gas line may be clogged. (06/17/2010)
I have a Troy Built lawn mower. I have already used it this year, but when I went to use it today, it just sputtered and wouldn't start. There is gas in there, so I know that's not it. Any suggestions?
By L. Flood
We got it. Thanks anyway.
L Flood (05/16/2010)
I have this trouble all the time. I remove the spark plug with spanner and see if the end is open and spray with CRC. Mine always works when I do this. Good luck. (05/18/2010)
I just tried to start my push mower and the cord is sticking, not pulling out all the way. Also gas is squirting out of the carburetor every time I try. The mower ran fine last week. What could this be?
Hardiness Zone: 8a
By Deji from Augusta, GA
My hubby says that the cord probably needs replacing. It could have grease on it or be worn. He also said that the diaphragm in the carburetor may need replacing. You might want to take it to a small engine place. (09/08/2009)
When I try to start my mower the first few times it seems to try to start, then the next time it's silent. What's wrong with it?
Clean out the gas line; if this mower has been sitting awhile unused, it's possible the carburetor needs cleaning. (08/02/2008)
If you do have a fuel problem (like leaving gasoline in the Lawn Mower for one winter season), flush the tank and lines preferably off of the engine. Remove the nut or bolt at the bottom of carb float bowl (leave carb on engine, if you can). Flush carb with fresh gas starting at where the gas comes into the carb till it comes out the bottom hole in float bowl. If the float bowl falls off, don't get excited. Clean it out while it's off and just make sure that you get the big round gasket back on the right way so the float bowl will not leak and put the nut or bolt back on.
Do not over tighten it. Finger tight, and if it still leaks use a 1/2 wench to snug it a little tighter till the leak stops.
If you have left gasoline in longer than one season then you will most likely have to put a kit in the carb and that is not a problem, and they cost less than $5.00 (I paid $3.65 for mine). (08/13/2008)
If it is a Riding Mower, such as a Craftsman, you might have to have the valves adjusted. They tend to loosen in a season. Some mowers may need to have carb. seated again. (10/06/2008)
By mike l