Of all things to fail on the trail... No Spark!

So I was out for a ride on a local trail, Sand mix grass and loam. when all was going fine. Untill I stalled (or so I thought?) on a sandy section. From hear the 450 just would not fire.

Figured it was hot from the sand bagging.... So I Waited for it to cool, No fire,...... Waited etc etc.
After a good wait I figured maybe theirs more to the problem?.... I started to look for loose wires or connections.
And thought I'd pull the Plug boot off to blow out any dust (if any) and ended up pulling the Lead right out of the Boot 8O .........................This led to a good 7+km walk home. Thank God I wasn't pushing an XR650.

So i found out once home, the Boot actually screws into the Coil lead. I thought I had the problem solved.
But no go. Pulled the Plug and checked for a spark across the gap, Nothing!

So, My Question is. Where to look now? I'm planning on picking up a Multi meter to verify i'm getting current.
But from hear I'm lost. (electrical is my weak point)

I know Coils can drop off at the drop of a hat with no warning. But I don't want to go looking for a new coil/ lead only to find the problem is els where.... Done that before.
If I hook up a Multi meter to the end coil lead/boot, What should I be looking for?

Is there anywhere els I should be looking at?

Bike is a 05 FS 450(converted to an FE)

Thanks for your help.

Dan

Pulled the Kill/e-start switch apart and I seem to have no current running into the Kill switch, i have current in the lower e-start switch but not in the above (e-start on/off) switch. I would think i'd need current hear to disengage or open the path to kill current hear?

I'll have to start back tracking down into the wiring/connections I guess.

Dan