Been thinking about this and I really don't know. I see the shadow left by a Magnum sticker on the top plastic. It's directly adjacent to the 066 nameplate. Has the dual port muffler, older style cartridge air filter, and semi-clear gas tank.
But...it also has the redlight ignition. If not for this, I would have no problem with calling it a Magnum.
I have no reason to suspect that all these pieces are anything but original.
My parts list shows the main difference being the muffler and spikes.
Thanks, Chris Bean