1987 Mitsubishi Mighty Max ignition

I put a battery cutoff switch on the positive cable [ both cables removed befor hand], when i tryed to start the engine,nothingworked,nojuice any where. my trusted parts guy did some searching and came up with replaceing the ignition switch so i did, when i got to the plug, one of the spade connectors was fried on both sides of the coupler. any way , i put 39 amp fusable link w/ a new spadeon that wire and everything work accept the starter. that seems to be black wire w/ white stripe,no juice ,is there a rely i cant find ?,or is there something else Iam missing. I have checked all the fuses and fusable link from the battery to the firewall, tested all the wires inthe harness w/ atest light they all good , but the black w/ white stripe.