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 maintenance 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.
Approximate Time: 20 minutes
I have a mower and when I pull the string sometimes it will jam up. This is killing my hand and shoulder and it also does not want to start. It tries to start, but all you see sometimes is white smoke coming out.
By Bryce from Round Rock, TX
Glen had the same problem with a mower last summer...after discussing it with his 80 year old father we all discovered that the 'jets or jet openings' inside of the mowers carberator were plugged up from trash that had been in the gas. They pulled the carberator, cleaned out all of it around inside and out, reassembelled it and the mower has run smooth since. Good luck though if your like me and not mechanically inclined you may need to go to someone who does this sort of thing on the side. IT would be less costly then replacing the mower itself though!
Good luck and keep us posted on what you end p doing with your problem mower! Have a great day!
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
The man who works on my lawnmower told me that gasoline with ethyanol added has been wreaking havoc with small engines.
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?
Take back to store for replacement or at least get help to return to manufacturer. Most equipment has one year manufacturer's warranty against defects.
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
If your not getting fire to your plug check your coil pack.
My mower has 12 volts at the starter, but it will not engage the starter.
My Yardman push mower won't start. I went to start it up, but it won't start.
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
Maybe the tiny hole in the gas cap, the one that lets the gas breath by letting the air in and out, is stopped up.
My mower won't start and my lawn is getting out of control. It has gas. Anyone have some tips? I used it a few months ago. It's a 10 year old gas mower.
By Linne Dodds
By David Graham
By bubba mechanicRE: Mower Won't Start Turn the mower over... clean all the gunked up grass off the bottom of the mower deck. You should do this every 2-3 times you mow. If there is too much grass built up it will not allow the blade to spin when you pull the rope, to start. ,P> Also some times tiny pieces get into the fuel line and will cause the mower to cut in and out unless you are a mechanic, find some who bleed the fuel line. ,P> Make sure the oil reserve is full this to on some mowers will not allow it to start. Lastly get a book on home improvement. Go ahead and laugh but they are so easy to use. I got one as a gift and have repaired my dryer, a washer a mower and my dishwasher. I have saved us hundreds of dollars in the past 10 years. I even made a few bucks helping neighbors with their appliances. (01/04/2007)
If the spark plug fires try this. Put a little gas directly in the spark plug hole on the engine (this is over the piston). You can use about a teaspoon of fresh gas. Screw Spark plug in position and pull the rope several times to see if engines fires. If engine starts and stops immediately or if it at least makes a rough attempt to start, you have a carburetor problem. Check the reason why your engine is not getting enough fuel from carb. It may be dirt, stucked floater, kinked lines etc. Also, be sure to use fresh fuel and clean carb from old fuel. (03/26/2007)
My lawnmower won't start. I turn it on and it just keep spinning. I put a new spark plug in it. I checked the gas for water plus I drained it. Please help. Thank you.
Thanks for these extremely helpful suggestions. After all of them I was still having issues and finally resolved this afternoon.
Replaced spark plug
Replaced air filter
Checked fuel line
Put gas into the spark plug hole and the engine fired up for 2 seconds with thick black smoke and then died.
Put gas into the carburetor after taking off the air filter. Same result. Engine started and died. So I knew that I had a fuel delivery problem. Took off the air filter plastic holder (3 screws). Be careful not to twist the hoses too much.
When the air filter holder is off then you can see the carburetor. I took off the carburetor (2 bolts) and flipped it over. You will see a metal bowl with a bolt in it. This 'bolt' is called the 'bowl nut'. Don't ask me why a bolt is called a nut. Take off the bolt carefully and slowly. Drain all the fuel out. Clean the holes in the bolt (one through from side to side and one from top to bottom which meets the side-to-side hole. Clean with a sewing needle very carefully. Also look into the carburetor area where you took the bolt out of and you will see two holes. Pierce those with the sewing needle and very carefully clean out all the gunk. If you have carburetor cleaner or can buy some, soak all these pieces in carb cleaner overnight (I did not do this). If you are feeling very adventurous take apart the entire carburetor, clean with carb cleaner overnight and then put back together (again, I did not try this).
Then finally put the bowl nut back and put the carburetor back. Fill fresh fuel, prime and it should all work.
The problem that I had was the very narrow (0.25mm) vertical shaft in the bowl nut was clogged (I had not used the mower in 2 years). (05/19/2008)
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?
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)
By mike l
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
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
L Flood (05/16/2010)
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. Could it be the fuel filter, and where is that located?
I have a pretty new lawn mower that won't start. The blade won't move and the cord won't pull freely.