Ford Lehman 120, Port engine when underway sometimes will not start after a night at anchor, slow turn and then nothing, simular to something like a dead battery issue and will then start when I run portable generator for 15 minutes or so.. At dock I checked battery wit a tester and got a good battery reading. At dock engine starts always when on shore power. If my starter battery is dead, or on the way out, why would I get a good result from a test?
Thanks in advance
Thanks in advance