2006 polaris predator 500 caught fire next to battery, damage just on the wires from rubbing. Now I have no power from electronic start to battery do I need to replace everything from the cdi box to t

It is a known issue. Check out the link.

https://www.google.com/search?q=2003+polaris+predator+500+wont+start

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check fuse next to battery if good then connection failure or wire broken

what year is it ?

1. Place the transmission in first gear

2. Rotate the lockout switch forward to unlock reverse gear

3. Shift into reverse gear

When you shift back out of reverse gear, the lockout switch will reengage automatically to prevent accidental shifting into reverse

First be sure to check oil level if you haven't. Many have a low level shut off switch. If the level of oil gets below a certain point it can shut off. Just a thought.

Maybe, vapor lock. Gas cap is not venting.

you have a short circuit on a positive wire. inspect your fuse box and your wiring harness for any visual damage

get it serviced now, its very dangerous.
and do not park it , INDOORS.

Sounds like one of the wires on the loom might have come undone, just run through the loom, especially all the wires to the ignition.If that fails, looking at the model, could potentially be a CDI failure. Good luck

having same prob with my preditor 500 any advice