I should have mentioned that I can not get access to the two screws that hold the carb in place due to the front fuselage ends being in the way.
These planes were built using an unusual cardboard-like material and the whole thing is basically glued together. In typical balsa trainers there are front canopy covers that are removable and allow easy access to things. The concept behind these AirCore models was having the engine, fuel tank, and servos in a slide-out tray on rails that you could transfer between models. The problem is that without unscrewing the front wheel control horn I can not slide out the tray. I can not unscrew the wheel hrom because there is no access without destroying the windshield part of the aircraft. What a pain. To even get the receiver battery out of the plane I had to pry open the bottom fold under the fuselage as it was nested between the bottom and the aforementioned tray.