Gentlemen-

Many thanks for the replies. Earlier today I ordered a Saito 50 and all the required ground equipment. I'm eagerly looking forward to trying this new setup. I think the Cessna was setup to direct the exhaust away from the fuse; if not, I will try the silicon tube method.

Pepe & Dave- I’ll exercise your advice on the castor oil and cleaning methods.

William Robison - was that a real suggestion or are you being sarcastic? The smallest gas engine I've seen is > 1.5 kilos; I wish they made them smaller.