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I have a Sears Weed Trimmer. Briggs & Statton 6.5hp engine.

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I have a Sears Weed...
I have a Sears Weed Trimmer. Briggs & Statton 6.5hp engine. It is a Sears Model NNN-NN-NNNN It will not crank. I can pump the bubble and it will fire but not stay running. The spark plug is new. The engine is a little over 1 year old. What can I do?
Submitted: 8 years ago.Category: Small Engine
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Answered in 7 minutes by:
6/25/2010
Technician: jcook, Small Engine Technician replied 8 years ago
jcook
jcook, Small Engine Technician
Category: Small Engine
Satisfied Customers: 120
Experience: 15 yrs experience John Deere C&CE technician. Briggs & Stratton MST, Instructor
Verified
This sounds like the carburetor has internal restriction. This is caused when the fuel sits unused for over 30 days. It will varnish and gum up the internal passages and will not pull fuel on its own. That is why when you pump the primer it will start. You will have to remove and dissassemble the carburetor and have it cleaned, I prefer ultrasonic cleaning, The heat and soundwaves this type of cleaning provides will blast all of the trash from the internal passages that you cannot see. Reassemble and you should be okay. Warranty will not cover fuel related issues like this. But the complete cleaning of the carburetor should solve your issue. Talk to you soon. Thanks, Jason
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jcook
jcook
jcook, Small Engine Technician
Category: Small Engine
Satisfied Customers: 120
120 Satisfied Customers
Experience: 15 yrs experience John Deere C&CE technician. Briggs & Stratton MST, Instructor

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