90s Johnson 25HP Battery Cable Assembly...options
Hello,
I have a great running 25hp Johnson that when I hit the starter button the starter engages but the motor doesn't turn quickly like it should. It is like the starter is struggling to turn the motor over. It will turn once or twice and this repeats. The battery cables are in bad shape; my guess is they are original. There is a lot of corrosion inside the insulation. I've cut the wires back multiple times and reattached connectors but I'm fairly certain my issue is these cables. First question, how can I safely bypass the cables and hook jumper cables directly to the starter or solenoid to test my theory? I don't want to mess anything up doing this, but I think I should be able to disconnect the battery cables and use my jumper cables to eliminate the battery cables in hopes of identifying that as the issue.
2nd ?, assuming I am right and my cables are the culprit, what are my options? I am not opposed to buying OEM from my dealer, but that is going to be pretty expensive. Is there really anything special about the OEM cables that would prevent me from just making my own with cable from NAPA? If that is fine, what gauge should I buy? The battery is right by the motor in back of boat.
Thanks!
no matter what I'm doing, I've got hunting or fishing on my mind...