motor won't start

walldo

Forum Newbie
Joined
Jul 20, 2017
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2
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when trying to start 12hp briggs and stratton I am getting blow-back through carb. Is this a sign of a stuck or broken exhaust valve?
 

Rivets

Lawn Royalty
Joined
Mar 11, 2012
Threads
55
Messages
14,683
Do you really want some help? With the info you provide there is very little we can tell you, outside of take it to a repair shop. Briggs has made over a dozen different models of 12hp engines. Which one do you have? Give us the model, type and code numbers off the engine. How about some background. Did this just start happening, has the unit been sitting for XXX number of years, what have you tried to fix, what is the service record, what is your mechanical experience? These are all things that will give us a picture of what you have and the direction to send you. The techs on this site are good, but none of us have ESP, supermen like vision, or are miracle workers. If you want help from us, you must give us more than a two sentence thread and even a pic or two would help. The ball is in your court as to what happens next.
 
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