RE: Engine fun day!
G'day idle flickers
I pulled my PAW 1.5cc RC engine and its little trainer off the shelf the other day and found it was becoming rather gummy so I grabbed a can of INOX (Australian made water dispersant and lubricant in a spray can) and squirted some into the engine to free it up. Gave it a few flicks and BREEEP - it fired and ran briefly. Gave it some more squirts and she repeated the trick.
Seems that INOX either contains some ether or something similar.
Mike in Oz