I just purchased a 2003 wr450f and it ran fine for a few days. Now however the 10A main fuse behind the battery blows.
The first time it happened while riding for a while, so I changed the fuse to see what happens. The second time the fuse blew after about 30ft of riding and now the fuse blows as soon as I start up the bike, let it idle for a sec and then the fuse goes when I shift into gear.
I visually inspected all the wiring already with no obvious shorts. I replaced the battery as the old one was pretty old but still I cant find any obvious signs why it blows.
I'd appreciate any help and suggestions to that matter.