ORIGINAL: Insanemoondoggie
I had the same problem .It acted like it was to rich , but only got worse as I leaned the LSN . Ran fine on run up stand but would bog on take off .
I ended up richening the LSN and the problem went away . Best running 2 stroke I have now .
Yup, the GMS and the Supertigre's seem to do the same things.
I went throught his with a new ST .61 yesterday, as well as last year with a GMS .76.
Once the engine is fully broken in ( 1-2 gallons of fuel through it ) this seems to be far less problematic.