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I have a kohler 6.5 ESZ marine generator with under 200 hours . Had a couple shops check rotor and stator for shorts.....even shipped to CA .....all checked good .

Posted by nick scivally on

  • Carl Rock
    Carl Rock Jan 13, 2020

    Describe problem?



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Diesel generator set:

Posted on Jan 15, 2020


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Better Plumbing

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SOURCE: Schematic

I looked for several minutes and this is what I found:

Kohler 13EOZD wiring diagram

I went to the Kohler site, entered the number and it cross referenced to the above number. The wiring diagram is on page 90.

Hope this helps!

Posted on Dec 05, 2008



  • 79 Answers

SOURCE: Hello, I have a Kohler Marine Generator that says OC on the menu when I try to start it. Any ideas?

OC stands for Over Crank. How long does it take before the genset starts?

Posted on May 07, 2009


  • 225 Answers

SOURCE: Same Problem, diodes fell out of bridge rectifier assembly

pulling to many amps,diodes could not handle amps so they failed.unit should have kicked its breaker before the diodes burned out.most units have their own breaker to protect the system.I would replace the control board first see how unit reacts,probly fine,if not the you go to next step.

Posted on Jun 27, 2009


  • 1 Answer

SOURCE: I have a honda generator em2500x voltage problem

Cummins P2200, 2KWatt, it starts fine, but after a couple of minutes, it gives quite high voltage output, meter needle goes beyond 300v, engine speed seems high since throttle is increased, indicator light on generator also becomes bright, after a minute or so, things come to normal, sometimes takes few minutes to come to normal, situation is same, with/without output load. this happens within initial 15 minutes after startup, afterward everything is normal.

Posted on Aug 14, 2009

Sheldon Dedek

  • 909 Answers

SOURCE: Coleman Generator not Making Power

actually, it sounds like the diodes are blown. Check our diodes.

As for checking stator, find the two wires, typically labeled L1 and L2 that are going to it. Measure with a multimeter. If there is no visual signs of damage, continuity can indicate a good stator. You should not have continuity between either wire and the stator frame.

The same goes for the rotor as well. The resistance measurements will not be the same for each one though.

Unfortunately, Powermate is out of business, and service information is scarce.

Posted on Aug 25, 2009

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