Most likly too rich.
I read some articles on this perticular engine. It seem that some people was having problems with this engine
and others didn't.
Tunning issue or consistancy operations. But this engine has very good power compair to other .46.

It boggled my mind. After all, it's just a 2 stroke single cylinder nitro engine. There's not that much to it.
What in the world was causing so much headaches for some.
Having confident ...I even purchased 2 of them.

Anyway, if it was tunning issues. I took the fuel intake system apart.
I un screwed the fuel line fitting barbs. Right off the bat there it was.
Some of the barbs had burrs from the chrome plating. I de -burred them.
Both of the engines runs perfect