2007 k-9. Bike was and has been running great. Went to start after sitting in garage for 5-6 days started up sounds like running on one cylinder very rich exhaust smell. Long story short checked coil wires to coil plugs plug wires. All good. Started again and only lights under seat is the yellow and blue blinking for cylinder firing. Nothing else headlight blinkers everything works but sounds like hitting on one cylinder. Any ideas please. Thanks

