SOLVED: Where do I find main fuse on Yamaha C3 2007 - Fixya I cant find the main fuse on my yamaha dt 125 re 2007 plate, i have found a black box situated next to the battery but no fuse? Hi, Fozzy813 for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. SOLVED: 2007 yamaha c3 xf50 where is main fuse located - Fixya 2007 yamaha c3 xf50 where is main fuse located no power to anything battery is good, - Yamaha Cars & Trucks question. Search Fixya. Browse Categories Trace the positive wire from the battery to the fuse box. There should be a breaker wrapped in tape in line. Check it. Follow the line with a voltage teater to see where you loose the current.