13.5 hp briggs throttle has no effect

[ba_50]

Model 311777
The throttle lever moves the linkage on the carburetor but only runs super fast. The
Motor acts like it is falling apart for a moment so I shut it off. Just had the carb apart and put a used throttle plate in. If it was stuck open I don't think the throttle shaft would be turning.

What can it be?
Thanks

 

[ba_50]

I adjusted the valves, .004 at exhaust at .006. Wrong?

 

[ba_50]

.006 I take, sorry

 

[StarTech]

Either the static governor adjust is off or the governor has failed.

 

[ba_50]

Does it look intact?the
When the motor was flipped upside down, the throttle shaft fell out. The plate was still in the carb. The screws will have to be locked in somehow. If the throttle plate position is wrong or missing can it cause the motor to overspeed?