Wally / Montana - the throttle shaft is not the area of concern for leakage.

Also, if you follow through with my lamp idea suggestion, be careful where you set the lamp. If you set it too close to a clock, the clock won't work! The old Rochester B leaks out so many electrons from the lamp that it sets up a force field and kills the clock wink

Jon.

Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify.
If you truly believe "one size fits all," try walking a mile in your spouse's shoes!
The Carburetor Shop