Ok so several of the builds have used a small piston for a shifter. I had a guy throw away a weedeater in my neighborhood and I stopped and procured it. I tried to make it run , to no avail. I didnt know if you took the 4 screws out to get to the gas tank it will need to be resealed...never ran again. Anyway a little destruction and you wind up with a cool little piston to use on your shifter. :lol: