[Oldsguy]

What C.J. is getting at is there may be voltage at the starter primary wire but that doesn't mean the solenoid is working or has ignition. Also, just having voltage at the primary wire may not idicate it is good, the wire may be degraded to the point that it won't support the greater current required to turn the starter motor, or you may have a faulty ground (not likely in the case of the starter to engine but could be in the case of ground wire from the engine to the battery). In addition to what C.J. suggested, make a physical inspection of the primary wire to the starter and the engine grounding wire/strap. Look for green corrosion on the battery ends of either wire and look for cuts, kinks, abbrasions or burns from exhaust, any of these might indicate poor wire condition and they could need replacement. The green corrosion on the battery ends could have crept up under the insulation a good two to three inches.