We shall see..... I have an old (made in Italy) G90 in a Top Flite P-39. Once the engine was broken in, which by the way takes about a gallon and a half of fuel, at a minimum, it has been one of the most reliable, certainly the most powerfull 2 stroke in my inventory. I also have a GS 40 that was a great running little engine untill it injested the wire off a glow plug, but that wasn't it's fault.
I just picked up a brand new G 2300, and my initial impressions are very good. It's also going in a large warbird, so reliability is going to be paramount.

Now, as far as the original problem in this post, check a few things. First, is the backplate tight, and is there a gasket in there? Second, is there actually an "O" ring between your carb and the engine? If either of those above mentioned things are wrong, loose or missing, the engine will not run right, and won't shut off either. Also, what prop are you running? You're not grossly overpowered on your 4*, so maybee a larger, flatter pitch prop would help your vertical?

And yes, most manufacturer's ratings for RPM are somewhat overestimated. Saito's RPM range on a lot of their 4 strokes is up to 12K rpm. The most you'll ever catch my 4 stroke Saito's turning is just a hair over 10K.



Andy