Help with 1995 Yamaha timberWolf 250

[agentoso31]

Ok so I have this Timberwolf 250 it sat outside under a cover was getting it read for hunting and  i have nothing like none of my electronics work (gear lights, ignition, rear lights, front lights ,ECT.) I have replace all the electrical parts and still nothing I can short out the starter  Solenoid and it will start and run but can start it from the switch  help please lol 

[cookmb11]

Had this problem once. Make sure, which you may of have, to check all grounds. I’ve had more ground problems than hot. There are two on bottom and mine where in rough shape. Cleaned them and tightened and she was ready to go. Hope this helps!