Thanks guys – I don’t think there’s really anything the matter here. Under no load it revs up and backs off equally and that would make sense with what “Dude” said. I’m just having fun playing with, and getting to know my new toy. Maybe I can find out about the flywheel on the tech discussion.

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89 300E
79 240D
72 Westy
63 Bug sunroof
85 Jeep CJ7
86 Chevy 6.2l diesel PU

"The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane."
Marcus Aurelius