CM 870 hard start issue

[Waterloo]

If those cables of yours are sketchy, pull them and replace. I crawled under my ProStar and found the jacket on more than a few cables was cut way short, 10" in one case. ALL of my power cables were GREEN. I was honestly surprised I did not have a fire it was that bad.

You know, I was having all sorts of electrical issues, and once I replaced roughly 100' of cable with copper welding cable, all of those issues went away. There is also an in line fuse in your ECM power line, has that been replaced? Also check that wire and make sure it is not chaffed or kinked somewhere on its way to the battery box.

That is what I would do, replace the funky cable along with the grounds.