discount brains

I believe I see why u gave that answer. You were probably thinking of the plane of the flywheel being vertical like it typically would be on any engine. I thought of including a picture, but it would probably take me nearly 1/2 hr to hook up the camera and upload it etc. Clearly, the 'pole pieces' or iron core parts that go through the primary of the coil are to be near (0.010" or so) of the rim of the flywheel. There are two elongated holes in the coil for mounting screws to mount to a surface in the same plane as that of the flywheel. I wanted to know which side of the coil faces this surface the flat side or the side with the bulge? I'm hoping there is basically one style here. I understand there are many brands with various styles of coils.