Just rebuilt most of a 2 stroke jet boat. (if you need / want any boat details, see: this thread)

Yesterday, she fired right up no problem, today she won't even turn over.

After some basic troubleshooting, I determined that I blew the fuse in the CDI box.

Went to 5 stores trying to find this fuse without any luck, also searched for a similar looking one online for quite some time. The only markings on the fuse is, "Pacific 10A". I bought some generic 10 amp fuses in case I get desperate, but I don't want to put these in and cause more problems. If someone could help me determine what type of fuse this is, I would feel much more comfortable.

Can someone help me locate this fuse, or a comparable one?

I am hoping that the fuse just blew because it was so old, but I know that is pretty unlikely.

I found a loose connection to the boats horn, could this have caused my issue?