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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 12172
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Second opinion] - The engine speed is surging, then dies

Customer Question

Second opinion] - The engine speed is surging, then dies under a load.
throttle return spring coils look to be streached out
throttle arm moves back & forth with engine vibration
Submitted: 1 month ago.
Category: Small Engine
Expert:  Curtis B. replied 1 month ago.

Make and model? Sounds more like fuel starvation, than problem with the springs. When did engine last run?

Customer: replied 1 month ago.
I should have refered to the governer spring & lever
it goes all the way back to the stop position killing
the engine. it is a Briggs & Stratton, 3 hp J 607
Power Master mower about 30 yrs old
Expert:  Curtis B. replied 1 month ago.

Governor is doing what it should do. It's trying to compensate for lack of fuel Have you checked for fuel to the carburetor? Is this tank mounted carb?

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