I just picked up a 1999 GTX RFI with an apparent electrical problem. It just clicks when I push the start button. The first thing I did was replace the battery. I took one out of another ski that started just fine. Then I replacd the solenoid relay switch. Does the same thing. When I connect the laynard, the ski beeps once and the gauges come on. I push the start button and all it does is click in the rear electrical box. I also checked the fuses in the rear box. Haven't touched the front box or MPEM. Thought for sure the relay was the problem. Now I'm thinking it's the starter but not entirely convinced of that. Any advice?