I don't know, Wayne....maybe the nipple is in a bad spot, but if it were
you think the Manufacturer would have been made aware of it long
before now. I just looked at at Rossi .45, and a Tower .75 with tuned
mufflers, and the nipple is in the exact same place....way up front.

The thing that gets me is....we started up a half dozen of those engines,
and in every case, they ran perfectly right out of the box....even to the
point that the low speed needles didn't have to be touched....they idled
perfectly....and that in itself is quite extraordinary.

The bottom line is....you gotta do what you gotta do to make it right,
and that's just the way it is. I would however, like to find out exactly
what the particular quirk is in that engine, for future reference. It must
be something unusual. [sm=stupid.gif]

Good luck with your motor, Wayne. Mines going on a Sonic Q-500 ARF.
We have a group, and a "Club racing" thing going on.....lots of fun racing
those things....and we agreed on the GMS .47 over all the other engines
on the market.

Edit:....no, I don't have the exhaust extension.

FBD.