Thanks guys... I really appreciate it.

Dumb question, I plead my ignorance here. This is my first 4 stroke and only my 2nd engine - first was 2 stroke .46 evolution. What's the nipple on the back of the crank case on the Saito .91 for? Is it part of the vent return line (using a T-cross with the other end on the muffler) or is it a line to expell half burned fuel? Does the line run out on it's own under the air frame?

Sorry.. the Saito manual doesn't go into any setup detail at all, nor are there any setup articles on the Horizon site. []

This is my second plane - the first being an RTF glow trainer, so this is a learning curve for me.

Thanks again!

Wayne