With the key in the OFF position, the ignition circuit is grounded between the two "M" terminals.
(Ignition Kill Circuit)
(J. Reeves)
A Black wire (ground) should lead from the powerhead to the powerpack. There will also be a Black/Yellow wire leading from the powerpack to a raised "M" terminal of the ignition switch. To complete the circuit, there will be a Black wire from the other "M" terminal of the ignition switch to ground.
When the key is in the OFF position = The two "M" terminals are connected,. effectively shorting/killing the ignition.
When the key in ON position = The two "M" terminals are not connected and the ignition is engaged.
