I have a M6800 Kubota and have problem with the turn signals and flashers. Neither work but if the flashers are pulled on and you turn the knob for a turn signal the opposite light comes on but does not flash. I have replaced the flasher and switch with Kubota original parts and still same problem. There are two types of flashers and switch for this model and mine has the switch that pulls out to turn on the flashers and is same switch as turn signal switch. Both bulbs doe work and they are a single filament bulb. Thanks for any help.