So carbs on this bike hasn't been professionally cleaned/refurbished.
Usual suspects:
- clogged tank vent? Work better with gas cap open?
- petcock's vacuum hose. What vacuum level does it give to petcock? Measure how much petcock flows in 60-seconds at that vacuum level.
- needles, try with 1 washer
Seems hitting bumps did something, i'm just not clear what could happen to carbs by bumps.
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