Why would my 2001 300ex start switch not work when the fusable link from starter soleniod to key switch is in place? However if I run it straight without link everything works as normal?

Yes the fuse is good.. lol Traced my starter switch issue to a bad fuse holder.. So went and bought a new one and installed and still wouldn’t fire from start button.. Checked the new link with meter and shows voltage coming out to connector that plugs in to wiring harness.. Had a 20amp fuse if that make difference..

Just don’t make sense.. Plan on just leaving it hooked up without inline fuse unless can come up with reason..

John T