Re: Engine Battery cable to starter motor to be replaced - looking for experience
I agree with what most of the others have said here. It is highly unlikely that the cable itself is the problem. It is way more likely to be a loose, corroded, or damaged termination on either the +12V or -12V cables going from the starting battery to the starter motor on your engine. Check, clean, repair, re-install and apply Corrosion X (or your favorite corrosion inhibitor) on each termination on both + and - cables.
Given that you say the starter battery is new, you should also check the voltage output on the 12V alternators on both the Yanmar and the Generator to make sure that they are working properly. You should also check and clean all the terminations on the cables going from the alternators to the starter battery.
Last, get yourself a cheap battery tester like this one or similar: https://www.amazon.com/BA7-100-1200-Electronic-Battery-System/dp/B0015PI7A4/ref=asc_df_B0015PI7A4/?tag=hyprod-20&linkCode=df0&hvadid=312280085431&hvpos=1o1&hvnetw=g&hvrand=4260724397295291035&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9007796&hvtargid=pla-499796143917&psc=1
Please let us know what you find and how you resolved the issue. Good luck!
SM #440 Cara
Deale, MD USA