Kiethfd,
I put two fuel shut off's I got at a Yamaha dealer on mine works great.
Some where on here there is a post and picture of how and where to put them. I copied that for mine. I couldn't find a good piece of alum to use, so I picked up a piece of roofing alum(very thin but works)from Home Depot(25cents) to mount the switches on and put that on the frame with pop rivets.