You would think that Boyesen would mold this exactly like stock but they did not. It is just a little bit shallower in the middle right over the flywheel. I have a Steahly 16oz. flywheel weight on my bike and the cover would not allow it to turn which therefore prohibited me from kicking over the engine until I had added 3 gaskets (only 1 came with the kit, the others cost $8.99 ea.). This ups the price, but I still appreciate the look and the strength (better than the stock Yamaha plastic ignition cover).