Excellent carb; much better than any of the new ones, plus it is calibrated for your engine.

Disassemble the carb and do a thorough job of cleaning (blow compressed air through all the passages). Put in a good quality rebuilding kit, and you should be good to go. Get rid of all the silicone. Silicone should NEVER be used around gasoline.

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