propane power

at Winn-Dixie we have a briggs vtwin powered by propane. they use it to polish up the floors and I thought it was weird as hell when I first saw it.
Google "Propane Conversions". Bunches of stuff comes up.
I've done just that and there are tons including small engine stuff but it's high rent. I thought about using an old grill and use the regulator and make a throttle valve but need to research it more. Sure would be neat to screw a propane bottle on and ride for hours, I think I have to try it someday.:thumbsup: