I have an older rcgf 20cc rear carb engine and I need a new reed valve assembly (b 2021) and they are no longer available. The screw that holds the reed in place has been slipping and allowing the reed to move out of place and has a bad effect on running. I thought about flipping the body over but there is a raised area that only fits in the engine one way. I called a supplier about possibly using the newer version that has two reeds but he did not feel it would work. The motor is a good one and I am trying to find a solution if anyone has any ideas.

Hi spasmatic!
I have an older RCGF 20cc that has a broken off mounting lug on the rear half of the case. I had the same problem finding a rear case half, no go. According to the parts list with my engine the reed valve and insulator are B2011, B2021.
The engine is pretty much ready to be cannibalized
So if you're interested I will pull it off. Make me an offer I can't refuse Some Jack Daniels, maybe
That little RCGF was a very sweet running engine for me!
Pete

I sent you a pm Friday, did you receive it?