I bought an 03 700 sportsman last week to take hunting. The battery indicator flashed and the battery was dead when I bought it. I purchased a new battery but the same thing happened. The diagnostic says the battery never charges at all. The same reading is there with or without the throttle. Also, the speedo and tach don’t advance. The cluster will light. The awd never comes on, no matter the switch but the front wheels always pull. The PO said the only thing he did to the bike is put a cylinoid from autozone on it. Let’s start with the battery:

1. No current. Alternator or resister rectifier or what?

Next 2. Speedo/tachometer- hall sensor or speed sensor or what?

3. Awd- is the cage broken and the switch? Why is the light never coming on?

4. Rough idle.

I’m wondering if there is something that would affect all these things at once like a volt regulator. HELP