Say Penuts! I'm new to gas as well. Here's another Optical kill switch that's a few $$$$ less. It's what I have installed in my GP Ultimate 160 for my Copperhead Venom 45 cc engine. Just another option! http://www.42-percent-products.com/gas-accessories.htm

At any rate, you'll find that "Experience is a hard teacher. She always gives the test first, and the lesson some time later!"

Phillp