Model #917378920 CRAFTSMAN Walk Behind Lawnmower, Gas

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my mower started blowing white smoke and running poorly. when i shut off i had oil in the air filter? 917378920 Craftsman Gas, walk behind lawnmower

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Alina -
May 18, 2013

Check the oil level to make sure it is not over filled. If the oil level looks good, remove the air filter and let the machine run for a little bit and see if the smoke clears up. If it does, you will most likely just need to get a new air filter. If the machine continues to smoke then it may be a problem with the crank case breather, but that's just not something I see that often.

Let me know how this turns out.

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Wade_B -
Sears Technician
May 20, 2013
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