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5 Suggested Answers

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


Craig Butler

  • 1730 Answers

SOURCE: no output voltage at all

The generator needs to be 'flashed' to bring back the excitation for output. Is this something you can do? Let me know and I can help you...

If you need further help, I’m available over the phone at

Posted on Sep 11, 2009


daniel hendrickson

  • 1922 Answers

SOURCE: i have a coleman vertex

was the smoke from the two cycle engine or was it the windings in the generator electrically burning, have you checked your breaker on the unit?

Posted on Oct 04, 2009


  • 1 Answer

SOURCE: 95 Toyota Rav4 - How do I replace/inspect/lube alternator noisy

how do you take off an alternator on a 98 rav

Posted on Oct 09, 2009

Sheldon Dedek

  • 909 Answers

SOURCE: I have a Coleman Powermate 5500 Generator. It is

This engine was not built with quiet in mind, it was built to be cheap. upgrading the exhaust is your best bet and likely the cheapest. Talk to a small engine shop about the possibility of using a muffler from an ATV.

Super Trap makes a fantastic muffler, if it will fit your application (most do). A link has been provided at the end. When you are looking at the various options, you will notice that a rating in db units. Reducing noise by 3db is half the original noise level.

if you can, go with the SuperTrapp. If still noisy (probably won't be), then add on the resonator as well. Downside to using aftermarket is that you will have an exhaust stack / system that sticks out the side of the generator. Upside is that you will be able to think quietly about how much the exhaust sticks out.

And no, I don't have any connection with Jack's, they are just the first hit that came up. Now that you know that something is available, you can do more research on it.

Posted on Jun 12, 2010

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No output voltage at all

The generator needs to be 'flashed' to bring back the excitation for output. Is this something you can do? Let me know and I can help you...

If you need further help, I’m available over the phone at

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