hello, i am trying to fix this mower myself. mower wouldn't engage blades. i replaced several parts & all connections were full of corrosion, so i bought new connectors & terminals. i replaced all 3 safety switches, pto switch, ignition switch, solenoid & a new fuse block that takes 4 fuses. a 15, 7.5 & 2 30's. anyway, when i installed the fuse block, it wouldn't start, just backfired. sooo, i took jumpers & bypassed the fuses & the mower works as it should! now, in the fuse block there are 4 connectors all connected together & 4 that are not. do those 4 in one strip need to be separated or just hook up the wires & insert the 4 terminals with the wires as 1 piece into the fuse block? then connect the top four single wires into the block? thank you