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Lawn mower won't run. Cannot start it.

I have a Scotts 3 in 1 Convertible Self-Propelled Lawn Mower that will not start at all. It seems like when I push the primer button, it's just air. The best I've gotten from it is backfire. I think its the carb, but I've cleaned that and it still won't work. Thank you in advance for your help.

Posted by Devin on

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06 Dyna FXDI

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  • 171 Answers

Sometimes the primer bulb gets cracked and wont properly pump fuel into the carb. replacement of the bulb should fix the problem.

Posted on Jun 24, 2013

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5 Related Answers

mickey813

mickey813

  • 472 Answers

SOURCE: Self propelled mower no longer propells

SOUND LIKE THE TRANS IS WORE OUT

Posted on Oct 01, 2009

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Anonymous

  • 6 Answers

SOURCE: Lawn mower will not start and run

Sounds like a clogged carb or a cracked primer bulb. I would install a carb rebuild kit and new primer bulb if your mower uses one.

Posted on May 31, 2009

hunter19_46m

Curtis Sewell

  • 7482 Answers

SOURCE: Bilt 5.5hp Self Propelled Mower: Lawn mower will not stay running...

Sounds like you will need to clean your carburetor.
Sometimes you can get by with priming it a few times, and letting it
run a few times like that and it will flush the gunk out of the jets,
but most of the time you will need to rebuild the carburetor.
If the mower is over a couple years old, then I also recommend that you
buy and install a new carburetor repair kit, because the diaphragm will
get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, count the
number of turns it takes to seat the jets from their original position.
That way when you go to put the jets back in, you know how many turns
they were in/out.
Please do not forget to rate me, Thanks
Good Luck, I hope this help

Posted on May 24, 2010

hunter19_46m

Curtis Sewell

  • 7482 Answers

SOURCE: My Scotts self propelled lawn

Hi teeemhays...

Sounds like you have dirt/debris in your carburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Also check you fuel line condition after a while they will degrade and need replacment.
Make sure you are getting spark at the spark plug, to do this:
Remove your spark plug and check to be sure you are getting fire at the spark plug.
You do this by grounding the plug on the head of the engine and pulling the crank rope, if you are getting spark then:
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
Once you have your carburetor rebuilt that should solve your problem.
This is a FREE answer,Please take time to rate me

Posted on Jun 17, 2011

wrxplayer

wrxplayer

  • 11 Answers

SOURCE: toro self propelled lawn mower dies after an hour

maybe u have to much oil in it or there mite be a stone in the carberator or petrol tank thats blocking the petrol ?

Posted on Aug 07, 2012

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