What are these two wires??

[prostreetC-10]

These ran over to my stock starter on my old motor (the purple and white wire). I know one is the "on" and supplies power to the fuse panel and the other is the "S" or start wire. Just not sure which is which. Common sense would say the smaller wire with the funky insulation would be the start but I'm not sure. My new mini starter only has the bat cable terminal and the start so I have to rewire the power supply to the panel. Can someone confirm? Thanks!




Untitled by agentjdub, on Flickr