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Lawn Mower Carburetor Leaks Gas |
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My lawn mower is Craftsman 2 in one, Mulcher/Bagger, 3.5HP 20 Inch Cut. Model #: 917-383270 S/N: 068726.
I cleaned the carb and reassembled it. Then the mower started and I let it run for about 10 minutes. But after I stopped it, I found a lot gas flowed out from the air filter area. I guess the reason is that I did not reassembled the float and needle correctly. I don't know how to make it good. I need help. Thanks.
Jerry
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cleaning my carburetor
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Post By john petty (Guest Post)
(05/03/2008)
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I have a craftsman 6.73 self propelled. I had it for 2 years now how often should I clean the carburetor?
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RE: Lawn Mower Carburetor Leaks Gas
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Post By Jerry (Guest Post)
(05/03/2008)
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Hi BeeCee,
Thanks for your help. I rechecked the needle and found it is for sure inside the seat, which was a metal tube. At the bottom (or top when carb in normal position), it is the gas inlet hole. Could you tell me how gas gets into the carb if the needle always seals the gas inlet hole?
The needle is linked to the float at near the spining shaft through a very thin half turn steal wire spring, which pushes the needle into the seat. By "needle sticking to the seat", do you mean the needle is away form the hole so that gas leaks into the carb? Please advise.
I am trying to upload a few photos for yor further help.
Jerry

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RE: Lawn Mower Carburetor Leaks Gas
Jerry, You had a bad gasket or did not reasmble correctly.
For one make sure it had a new carb kit and made SURE the two halves went together precisely. Remember to tighten the screws not individualy but slowly around like a diaganal way until all are secure...slowly. Give each screw time. Sounds silly but it works.
If you did all of the above your needle is prob sticking. If its a new carb kit and did all of the above tap on it hard with a big screw-driver.
If a new kit, re-do the above if not get a new kit....If just cleaning remember the tightening procedure.
If its a lot of fuel the needle is sticking to the seat. Buy a new one for 15 bucks. Try the above first
A little time goes a long way.
BeeCee

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