Hi and welcome!!!
Quote:
Originally Posted by LilBoogie
It has 22,500 miles on it total, backfired on downshift before, like one or two pops at high rpm, now it crackles with a bunch of pops on downshift deceleration.
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This is your coast-enricher not working. It's the little UFO-looking device on left of carb:
1. ensure all hoses going to it are intact and not cracked
2. remove outside cover to diaphragm
3. verify diaphragm not ripped
4. make sure eeny-tiny hole from vacuum port is not clogged. Too small to measure or feel flow, drip some dye from outside and make sure it gets to inside.