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Walbro Throttle Plate Screw Sourcing

#1

T

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?


#2

Scrubcadet10

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
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#3

T

The Push mower

Scrubcadet10 said:
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
Click to expand...
The other screw is really loose. definitely going to dig around for it in the muffler and scope cam the cylinder.


#4

T

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


#5

Scrubcadet10

Scrubcadet10

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


#6

StarTech

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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