G'day Sean,
Stick it in the plane, put a APC 11x6 on it, with your Bisson muffler, follow the instructions that came with it, to the letter, & you will have a great engine.
Also use 10% nitro, coolpower oil, at 18%, & an OS #8 glow plug, the 46AX comes with a A3 plug, keep it as a spare, it's heat range is too hot for that fuel I mentioned.
Forget Castor oil, that's old technology.