I have a kyosho megaforce with a .15 engine. Does anyone know where to get schematics for the engine. I unscrewed a cap on the side that I thought was the low end screw. It semed tight and Ithought that was odd so I went to richen it a little. Then I drove it around and when I checked it again I noticed the screw was missing. It did not change the way it performed and it stayed running. Now I need this screw which really must be a cap. Plus I am still to know which screw is the low side. HELP