You know Aibusdrvr I almost shipped the engine to you today but you convinced me to keep it
I'm well versed in RC engines just not familiar with these pumped/piped ones. Thanks for the muffler tip,
and BTW I saw one almost NIB sell for 160$ last weekend.... nice try!

Impactit:
Now for the goof, not knowing I did put in a bit of after run oil (petroleum based[:@]) about 2 weeks ago wanting to protect it
from rust, now what are the chances that it's affected? Anything I can do (dissasemble to clean or other) to
prevent damage?

Navav2002, it's a YS61FS as shown in your picture, pattern side exaust, I called it a YS61S because thats
all I could read on it, thanks for your input.

Flywilly, your opinion is basically what I had in mind before posting, but I'm still undecided, but your
opinion does reflect the fact that this engine might not be the best thing for my kind of flying.
So Airbusdrvr how many cases of my favorite are we talking about?

Tanks all for responding.