It originally ran on a mixture of gasoline & motor oil (white gas as I recall). I no longer remember the correct mixture ratio, but about 20:1 gas - oil seems about right. However, that example won't run that way -- the distributor looks to be inoperative, plus you would also need a coil & condenser & a working spark plug & ignition wire.

I think that it has been converted to glow fuel. The needle valve assemby will need cleaning out first. Use regualr glow fuel, with a castor-based lubricant & ~10% - 15% nitro. I woud add an extra bit of castor oil as well to bring it up to ~25% castor. You should get some action from it if it is workable --- but don't run it too lean!!!!!!