I purchased a used Honda HRC216HXA a few years ago and haven't had a problem with it until ealier this year when it won't start and I noticed it didn't have spark. I replaced the spark plug and it still won't start, (or have spark). The next day it started on the first pull. This happened a few times. Today, it wouldn't start again and I figured I just go ahead and change the ignition module. The problem being, I can't figure out how to remove the top cover to get to the ignition module. Is anyone familar with this model and how to remove the cover. I'd appreciate any help you can give me.