motoquest
Active member
**** Update. Took the bike to have the exhaust fuel mixture/sniffer test done. The bike tuner said the bike is lean at idle which is by design to meet EPA standards. When you give it gas the mixtures goes to exactly where it should. This explains the discoloration because every couple of months I would let the bike idle for 15 min to charge the battery and let the engine run. Mystery solved!