The easy place to find( and probly the start button you talking ) is a kill switch of a cr oryz dirt bike. I did it on my 400ex and it worked great. Plus they only cost like 12 dollars and are pretty easy to find at your local dirt bike store.
'09 KTM 505sx black
'06 YFZ white
Herrmann/elka, LSR, ITP, TAG, Hiper, Ac, Blingstar..........
'04 yfz blue
ITP, pro-circuit, gibson, gyt-r, LSR, Pro-tapers
2001 400ex #40
Axis, Lonestar, Herrmann, Gibson, Quadtech, JE, Hotcam, ITP, Ronnies, KandK, Roll design
Ronnie's Mail Order
www.ronnies.com
ATV fury3 -FST-..walsh..
ATV fury2-Sick0 number 40