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NFT: lawn mower starting problems

Rick5 : 5/4/2018 7:33 pm
I posted a thread about this toward the end of the lawn mowing season last year. My lawn mower would run fine, but it wouldn't start without using starting fluid (even though I always use fuel stabilizer). I figured I would mess with it in the spring by cleaning or replacing the carb. I ran across online a product called "mechanic in a bottle" which claimed to clean carbs without removal. I bought it at home depot for $6 or something like that. I followed the instructions with no luck at all using a fresh tank of gas. I cut the grass a couple of times and still needed starting fluid. I was going to take it apart tomorrow to work on the carb. Lo and behold, tonight it fired up on the first pull! I know a number of other people had this problem on the thread I posted in the fall, so I thought I would pass along something that worked for me without removing the carb. I think I am going to add an ounce of this stuff every other tank going forward. It took a little time, but it worked like magic.
Had that issue two years ago  
eli4life : 5/4/2018 8:02 pm : link
Replaced the carb still had the same issue. Ended being the little tile plastic piece in the fuel line had a extra little bit on the end of it (wasnít cut off properly) the place I took it to trimmed it off and has worked beautifully ever since
Thanks for posting  
mainiac : 5/4/2018 8:59 pm : link
I have this issue every year and will definitely give it a try.
Also, the way those engines  
section125 : 5/4/2018 9:18 pm : link
vibrate, you may want to check the cap screws that hold the carb to the head. See if they will tighten up, or maybe replace the gasket between the carb and head.
Wouldn't hurt to  
winoguy : 5/5/2018 9:27 am : link
check the spark plug. Clean it or replace it.
not sure if a riding or push/powered  
mdc1 : 5/7/2018 8:58 am : link
but I would recommend finding a maintenance kit for the mower that has a new spark plug, fuel filter, etc and start with that. Also, hopefully you are using new fuel and not stuff lingering off the winter months in a gas container.
Do you have a 'Primer' button?  
mvftw : 5/7/2018 9:01 am : link
They do go bad.
They all suck...  
x meadowlander : 5/7/2018 10:26 am : link
...back in the 70's, my old man had cheap push mowers with Briggs and Stratton motors. He's leave em' outside under the deck all winter every year.

Spring would come - top of the tank and pull. Damn things would start up within first 3 pulls every time. No primer button. What changed over the years? Better gas? Better design?

No idea.

I do know this. Modern mowers suck balls so bad I finally got fed up and bought an electric. Same with the weedwacker and blower. Got fed up with cursing at lawn equipment, removing carb's and cleaning out fouled parts.

I hate the extension cord, but love that it works every. Fucking. Time.
meadowlander, it's  
dorgan : 5/7/2018 10:31 am : link
the fuel.

Ethanol is a killer to small engine carbs. Buy non-ethanol fuel and your issues with small engines will disappear.
Rick5  
fivehead : 5/13/2018 5:56 pm : link
Thanks so much for this thread. I was having trouble with my 20 year old McCulloch trimmer. I tried a thousand pulls and could not get it started, but I put the MiB in, and it started on the first pull! I just let it ilde for 15 minutes, and it seems to be fine now.
Y'all are doing this shit wrong.  
Geomon : 5/13/2018 7:42 pm : link
Set it and forget it.

RE: Rick5  
Rick5 : 5/15/2018 9:58 am : link
In comment 13962544 fivehead said:
Quote:
Thanks so much for this thread. I was having trouble with my 20 year old McCulloch trimmer. I tried a thousand pulls and could not get it started, but I put the MiB in, and it started on the first pull! I just let it ilde for 15 minutes, and it seems to be fine now.

Yeah. I was totally shocked how effective this stuff is for a few bucks. I use a full stabilizer and do a full tune up each spring, but still developed a problem. Ethanol sucks and the pure stuff is too expensive. Problem solved with MIB. Mine has started with a couple of pulls since I posted the thread. No more issues.
Unfortunately, in some areas you can't get pure gasoline  
Greg from LI : 5/15/2018 11:26 am : link
If you look on that website that has a map of places that sell it, there's an empty swath through central Virginia centered on I-95. I'd have to drive at least an hour away to buy it. I have to keep buying fuel stabilizer.
RE: Unfortunately, in some areas you can't get pure gasoline  
Jim in Fairfax : 5/15/2018 11:51 am : link
In comment 13964212 Greg from LI said:
Quote:
If you look on that website that has a map of places that sell it, there's an empty swath through central Virginia centered on I-95. I'd have to drive at least an hour away to buy it. I have to keep buying fuel stabilizer.

You can buy pure gasoline in cans. Itís ridiculously expensive though.

BTW: the best fuel stabilizer is Star Tron.

RE: Unfortunately, in some areas you can't get pure gasoline  
Rick5 : 5/15/2018 12:58 pm : link
In comment 13964212 Greg from LI said:
Quote:
If you look on that website that has a map of places that sell it, there's an empty swath through central Virginia centered on I-95. I'd have to drive at least an hour away to buy it. I have to keep buying fuel stabilizer.

Same here. There was one station a few miles from my house, but it's all ethanol now. There's nothing remotely close to me now, and the stuff at places like home depot is outrageously priced.
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