You need pressure, ultrasonic, and abrasives to remove the plastic-like varnish of dried gas. It cross-links into poly-vinyl bonds that can never be dissolved again. You also need to floss out the hidden passages.
Quote:
Originally Posted by n4mwd
Here are the secret passages in the carbs. They are kindof hard to figure out sometimes and this picture guide will show where they are for cleaning purposes.
Carb Pilot jet Circuit
Carb Main Jet Circuit
Carb Fuel and Overflow Drain
Carb Diaphragm Intake, upper choke and vacuum ports
Carb Choke Circuit
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