Question about Craftsman Gas Mini - Tiller/Edger

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I have an old craftsman mini tiller. I replaced the neddle valve and diaphrams in the carb. Now it will start an run on half choke, but wont thottle all the way up, and dies when you move the choke to the run position. Any ideas whats wrong.

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Sounds too lean, open up the needle valve more.... If no success, check float level is high enough.

Posted on Mar 27, 2011


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did you try running it on half choke ? does it run anybetter ? also how old is the gas ? were the diaphrams nice and flexible in carb or stiff ?

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Craftsman mini tiller runs great for a few minutes then revs up a little and then dies. Restarts after a few minutes and then repeats over and over.

Fuel starvation, try slacken the filler cap to rule out a blocked tank vent, if no better replace the fuel filter in the tank, if no better you will have ti remove the carb and clean the filer under the pump diaphram.

May 13, 2012 | Craftsman Gas Mini - Tiller/Edger

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Craftsman tiller, 850 series, model 917.297032, Briggs and Stratton engine, will start but not run. If it does start, it's a rough idle, and it kills as soon as I move it off of choke. I have cleaned...

It could be the gas you are running in it, if it contains ethenol use some stabil in this type of gas. Ethenol attracts moisture and will cause the carbs. on small engines to gum up and get a fouled. I run 100% gas in everything. It may cost a little extra now but it will save you alot more in the long run!

Feb 26, 2011 | Craftsman Gas Mini - Tiller/Edger

1 Answer

Need to know how to rebuild the carb on a 3.0 hp

The carb sounds like a vacu-jet, very easy to rebuild. Remove it from the tank but be careful not to damage the siphon tube. Then make sure to check for foreign matter in the tank (big problem with this system), clean and flush it. The idle screw is easy, the other is set by going from idle to full throttle quickly and adjusting it just so it doesn't stumble

Apr 24, 2010 | Craftsman Gas Mini - Tiller/Edger

1 Answer

Tiller wont stay running..

Clean out the small fuel inlet ports behind the diaphragm. Sounds like they are clogged up. Use the end of a paperclip to gently make sure the passages are open. Hope this helps. Good luck.

Jul 10, 2009 | Craftsman 8.50 Torque Rating Dual...

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My mantis will not stay running unless the choke is full on

sounds like the fuel pump diaphram in the carb. you need to either be familar with it or take it to thae shop to replace

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Craftsman mini tiller starts good but will not idle nor run fast

i'm having the same problem. cleaned carb but didn't help. I found that if I spray starting fluid on the gasket between the carb and the motor it speeds up. I'm going to try to find a new gasket, I can't tighten it anymore.
Good luck

Jun 30, 2009 | Craftsman Gas Mini - Tiller/Edger

1 Answer

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it sounds like the the carb. either it needs cleaned of the float inside isnt working i would say to just get a new carb. if its possible concidering the age but try to clean the filter first im sure it has one sry but thats all i can think of

Jun 06, 2009 | Craftsman Gas Mini - Tiller/Edger

1 Answer

Tiller wont run


if it has set up for longer than a few moths it is most likely a fuel issue. many times the diaphram on the carb will dry out and shrink or crack allowing air to seep through leaning the motor to the point to where it will stall after a couple seconds. spray some wd40 aorunfd the ouside body of the carb and tank were the carb attaches if applicable and restart if it runs a little longer you will need to replace the diaphram which is inexpensive to fix usually under $10.00 refer to a manual or somtimes you can go online to youtube and there are many videos on the subject. hope this helps... good uck!

Mar 30, 2009 | Craftsman Garden

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