Originally Posted by NeilW
Stock tank insulation.
Safari tank insulation.
I don't think you could reuse the stock insulation. It probably wouldn't fit well even if you could get it off. I used the foil-backed plastic bubble wrap type and metal-backed tape to hold it on. It's still holding up pretty well after a couple of years of use.
Something like this would also work well.
I've used it to insulate luggage from exhaust heat.