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Old March 31st, 2019, 03:07 PM   #8
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
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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