[blu3fan]

is the killswitch on the cm450 a button that pushing it in disconnects the circuit. or is the circuit completed by the button ? if that makes sense.
I.E. can I use a normal momentary switch on it. or do I need something different ?
Right now I have it running directly from the cdi box to a handlebar killswitch. But I want to make sure before I hook it up with a normal switch

 

[J-T]

The SOHC bikes use a CDI ignition which supplies it's own power. The kill switch and ignition switch shut the engine off by providing a path to ground which effectively "shorts out" the ignition.

You could use a momentary pushbutton normally open switch. You would just have to hold the switch until the engine stops turning.

 

[tepetit53]

Kill switch grounds the CDI. Normally open momentary switch would be fine.

 

[blu3fan]

thank you.
I wanted to confirm before I hooked it up.