I have a couple of Chrysler Snorunners that have a WB820 on them. I have been wanting to mount one of the motors on a minibike for quite some time now, I haven't decided which one yet, either my Stellar or my Simplex Sportsman. I've been looking for a mount, G.E.M. makes one plus a couple of other company's. Problem is that Kart stuff is PRICEY. I have an extra Snorunner engine mount that I could use to make my own.
I think it will make a great minibike engine. It's factory detuned to about 7HP and with a few mods I can squeeze about 10 out of it. Plus it has a lighting coil to boot. About the biggest problem is that it is a CW spinning motor, so it will be mounted backwards- that is the recoil will be on the left side. A Fairbanks Mores kicker will fit, but a recoil will work too. Can't wait to start it.