Trash in the idle circuit is a possibility, however:
Carburetors go bad over years, even decades.
Ignition systems go bad in the blick of an eye, especially the electronic ones.
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
