kill switch???

[spooly]

the kill switch on the 300 never work since I got the bike its the run type switch ud see on a road bike on and off.but the bike ran fine with the switch in on and off position..so I bought a new kill button the mx type.. so I went about fitting the new one..first I cut the two wires going to the old switch and crossed/joined them to see if it would kill the engine and it did not ..so I traced the two wires back to the ecu and there is another joint just before the ecu so I crossed and uncrossed um there and it still didn't kill the engine..so what do I do now?? I tried put the new swicht straight onto one of the wires going into the coil but the engine will only run with the button pressed so id need a normally closed switch for that method..so do I go and buy a on/off type switch and wire it to the coil. .. any suggestions????