I have a device that I use, a plastic pistol grip affair with a trigger that alligator clips onto two of the three screws attached to a "buss" on passenger fender. Available at any AP store. A little black box that is hinged, open it, you'll see. Trace from battery. All you have to do is connect #1 and #3, the starter will engage. You are bumping just enough to turn cam, no GP's, won't start. I also use this when replacing belts, get 'em almost on, don't use your fingers, bump the engine, "walks" on.

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83 SD

84 CD