Question about Craftsman Gas Mini - Tiller/Edger

1 Answer

Why will my tiller only run when the primer ball is pushed in. I replaced the ball and still have the same problem as soon as i let off the primer ball the tiller stops running.

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  • Roy Cagle
    Roy Cagle May 25, 2011

    4 stroke or 2 stroke model here? If it is 4 stroke, the main jet is probably clogged and needs to be cleaned (brass bolt that holds float bowl on carb). If it is 2 stroke, then there are different fuel issues, like check valves in carb dirty, debris (flakes of old fuel line) in the fuel lines, bac gas tank vent and/or filter. Many causes for carb problems in the 2 stroke, much more so than the 4 stroke float-type carburetor. Post back. I would like to continue to help.

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  • Craftsman Master
  • 7,482 Answers

Hi mjlqm....

Check/Clean/Replace your fuel filter if you have one.
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 year 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.
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 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 May 26, 2011

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