Blowing Fuses on Honda GX620?

Hi, great info here!!! Been lurking a while, but had to post one that is stumping me. I picked up a chipper/shreader with a Honda GX620 horizontal shaft, previous owner said it would blow fuse after it starts sometimes. Well, it still does. I have heard jump starting these engines can hurt the coil, it has been jump started by previous owner a few times when battery was run down. What is the first few things to check for? This is right by the ignition switch, he said a 15 amp fuse. It is just hanging out now, not sure if it sat right behind ignition switch cover.

Thanks.