"I have to replace a jumper wire in a 1986 4h.p. merc.the wire coating is falling apart. I was looking for the part on line,they are nla. Is thier anyway that I can make the wire, thier is a boot connected to the end which ties into the contact set. The block doesn't look like copper,I was going to try to solder the same gauge wire to the block. Any Ideas? Bud"