Ski has new starter solenoid, and now a new start / stop switch. When you touch the poles on the solenoid togther, turns over just fine, so I l know the start motor (which is almost new) is fine. I have a wiring diagram, this is a simple circuit. I cannot understand why it will not turn over when you hit the start switch.

Only thing I can think of is that I do not have a good ground thru the stator or the voltage regulator. Anyone had this problem?