Blowing fuses
I was riding my 400 yesterday and it ran fine all day. Started up fine everytime and everything. But when I got back to the truck and cut it off, it would not start back up. It was not even trying to start, the headlights wouldn't work either. While I was inspecting the battery today after work, I noticed this fuse holder right in front of the battery. I pulled the cap off and there are two fuses. I think one is a spare, but I am not sure. I pulled them both out and one was blown, the spare one was fine. So I put the good one in the spot where the blown one was and as soon as I turned the key it blew also. Before any one says this, yes they were both 15 amp fuses. I am not sure what is going on. Please help.
2007 yfz450 -- black Maier fenders, Oury grips, CFM aluminum air box without the lid, 250r K & N air filter, Curtis Sparks X-6 full exhaust, cam mod, IMS-Roll Intimidator MX bumper, AC Racing Blackline Pro-peg nerf bars, Hiper beadlocks, Kenda Claw XCR tires
2001 400ex -- black Maier fenders, JE 10.5 to 1 std bore piston, Hotcam old Stage 2, FCR 39mm carb, port and polished head, valve job, White Brothers Pro Meg full exhaust, K & N air filter, no air box lid, Big Gun rev box, race cut front fenders, OMF air scoops, PRM swing arm skid plate, Tag X5 handlebars, Oury grips, 15/38 gearing, Kenda Claw XCR tires, Barnett Dirt Digger clutch, yfz450 front shocks