My 84SD is correct. The 85SD which was dealer serviced until I bought it is backwards. I haven't tested the switches to know whether the difference is the switch or the wiring. The switches look the same without pulling, comparing part numbers or connections.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.