Walbro Throttle Plate Screw Sourcing

[The Push mower]

One of the two screws for the throttle plate is completely gone. Where might I find one? Engine Model 31P777. Thanks for any help.

EDIT: I believe I found it 691636. Red thread-lock for these?

 

[Scrubcadet10]

First i would attempt to find out where the missing screw is.... might be on it's way to your combustion chamber.
Briggs & Stratton 691636 appears to be correct, and it appears they already have a thread locker on them

 

[The Push mower]

First i would attempt to find out where the missing screw is.... might be on it's way to your combustion chamber.
Briggs & Stratton 691636 appears to be correct, and it appears they already have a thread locker on them

The other screw is really loose. definitely going to dig around for it in the muffler and scope cam the cylinder.

 

[The Push mower]

Throttle shaft at the bottom is really sloppy and the top plastic bushing is well worn. Fix or replace?

Carb number is Walbro 697202

 

[Scrubcadet10]

shaft bushing https://www.partstree.com/parts/briggs-stratton-690602/
or you can get a whole new kit
Throttle shaft kit w/bushing

 

[StarTech]

Steel binding head slotted screw 4-40 x 3/16. Less than 0.20 ea. including shipping. Use a little blue Loctite when installing.​

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