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DannoXYZ · June 30th, 2019, 02:32 PM

clue

You mentioned #2 plug was rich/fouled and #1 was tan.
Please post photo of these plugs

I think there's some kind of air-flow mis-match between cylinders, leading to one side getting fouled. Compression-test will give some valuable data to work with

June 30th, 2019, 02:32 PM	#4
DannoXYZ ninjette.org certified postwhore 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	clue You mentioned #2 plug was rich/fouled and #1 was tan. Please post photo of these plugs I think there's some kind of air-flow mis-match between cylinders, leading to one side getting fouled. Compression-test will give some valuable data to work with Last futzed with by DannoXYZ; July 1st, 2019 at 03:26 PM.