Question about Coleman Powermate Subaru 5000W Portable Generator

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My coleman started running at a super high rpm. I know it's the governor, but how do I adjust?

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  • 573 Answers

It sounds like the governor arms internally are broken, can you feel any resistnce? if not then it will need a tear down to fix

Posted on Nov 15, 2013

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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: Coleman generator OHV3000

The carburetor is probably clogged up. Mix a bottle of carburetor cleaner with the gas to see if that would help. Also check/replace the fuel filter.

Posted on Sep 10, 2008

  • 18 Answers

SOURCE: Coleman Powermate 3000 surging

Check your air filter to make sure it is clean, especially if the gen. has been run in dirty, dusty conditions. Make sure the gas tank vent is not clogged.

Also, pour some combustion cleaner into the carb. through the air intake to clean the carb. It sounds like it is starving for gas.

Hope this helps.
Rob

Posted on Sep 27, 2009

  • 1383 Answers

SOURCE: how to adjust a fuel governor for a 3750 watt

With parts list in hand, look at reference #21 governor arm and reference 89/90 adjustment screw. This adjustment will increase decrease engine speed. I would use a meter with hz setting to set engine speed to achieve 60 cycles. Sixty cycles on the meter would indicate that the engine is turning 3600 rpm which is max. If all working correctly, voltage should be around 120v at 3600 rpm and 60 cycles. Good luck

Posted on Aug 02, 2011

  • 6468 Answers

SOURCE: model#pm0525312.18 coleman as it is running the rpm's keep fluctuating even with no cords attached any help ?

dirty jets in the carb will cause the rpm's to fluctuating

Posted on Aug 19, 2012

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1 Answer

Need adjustment procedure and breakdown of governor.


check that you have the governor control rod on the butterfly lever of the carby connected correctly
it appears that the lever is at full throttle when you connected it and so the governor cannot pull it back to correct speed
if correct the throttle will be at full speed when stopped but will move with the go lever to slow when you manually push the gov lever

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Its is a governor or fuel issue. Start with the fuel make sure all and carb is set correectly and tune dup. Then check the governor. Make sure also you have correct weight and viscosity oil and level

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there should be a little screw to help adjust your idle try that..counterclockwise to add more idle, clockwise to slow idle..

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The governor on my fh580v kawasaki engine doesn't seem to be working. After I start it up it slowly speeds up to a high rpm. If I run the governor arm with my hand it works fine but doesn't have...



Your throttle plate and or governor arm may be out of whack. Download a technical service manual in a pdf off the internet and follow the instructions on how to set them. Be sure to put a 6mm pin or bolt in the hole while adjusting. You want to set your governor arm prior to setting the throttle plate. I had the exact same issue on mine and that was the resolution. Good luck and be sure to set your rpms correctly for high and low speed idle. Again the technical service manual will provide info on how to do it all. They sell a little hour / rpm gauge on ebay or amazon for like 15 dollars where you just have to wrap the wire around the plug wire 4 to 5 times and it will read your rpms. :)

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1 Answer

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There are many different models of Briggs used however simple methed is to find the governor shaft. Attached to the small shaft will be a lever with the governor spring and linkage that connects to the throttle. One end of the governor spring attaches to the lever and other is attached to either an adjustment screw with locknut or metal tab that can be bent. Increasing the pull of the governor spring on the lever will cause the engine rpm to increase. Bend the tab to allow for greater pull or adjusting the bolt with locknut. Make sure that the engine is not turning much more than 3600 rpm. Use a digital meter with Hz setting to set the output cycles at 60. When set at 60 cycles the engine should be turning about 3600 rpm which is where the engine develops max power.

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1 Answer

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Not sure what you mean "high voltage rpm power generator out", however many people have asked how to adjust the engine for proper voltage output. On generators with~out a voltage regulator, I adjust the engine RPM by using a digital voltage meter that has a Hz setting. Adjust the governor untill the meter displays 60 Hz. With the geneator producing 60 cycles, I know that the engine is turning 3600 rpm (the engine produces max hp when it is turning 3600 rpm). At this point, read the voltage output to verify that the range is between 115 ~ 120. On generators with a voltage regulator, verify/adjust that generator is producing 60 cycles then adjust voltage by turning screw at the regulator (some regulators are sealed with potting compound and can not be adjusted). If your power demands are not that great and you appliance can operate at 50 cycles, adjust governor as needed. Lowering to 50 cycles will also reduce output voltage. Good luck

Oct 10, 2011 | Coleman Powermate Powermate 5000W...

1 Answer

How to adjust a fuel governor for a 3750 watt coleman generator


With parts list in hand, look at reference #21 governor arm and reference 89/90 adjustment screw. This adjustment will increase decrease engine speed. I would use a meter with hz setting to set engine speed to achieve 60 cycles. Sixty cycles on the meter would indicate that the engine is turning 3600 rpm which is max. If all working correctly, voltage should be around 120v at 3600 rpm and 60 cycles. Good luck

Aug 02, 2011 | Coleman Powermate Proforce 6,000 Watt 12...

1 Answer

I purchased a Coleman Powermate 5000 6 years ago: Ser: 94411583. Never really used it for any length of time. Kept for emergency. An electrician checked it for voltage output a short time ago. 240V...


Voltage is adjusted by raising or lowering the engine speed (governor adjustment), however one must also pay attention to the rpm because your generator was designed to produce 120 volts at 60 cycles while turning 3600 rpm. Your electrician should have tested for htz while testing for voltage. I would recommend re-testing under load and adjust governor to turn 60 cycles to see resulting voltage.

Sep 30, 2010 | Coleman Powermate Powermate 5000W...

1 Answer

No load voltage to high 132 volts on power mate 7500


Actually, without a load being connected, this voltage is within specifications. As you connect loads, the engine slows down, voltage will drop as well.

If your meter has the ability, the frequency of the generator with no load plugged in should be 65 or so (preferably 63, but hard to keep it there with mechanical governor).

If you do find that your voltage is too high, with a load plugged in, you are able to reduce it slightly by adjusting the governor ever so slightly towards a lower RPM. 60 RPM = 1 Hz, and a few volts difference.

The best way to adjust your generator is to plug in a load that is half the rated wattage of the generator. Then make your adjustments, keep the frequency just a hair above 60 so that additional loads won't cause it to drop too far.

Jun 12, 2010 | Coleman Powermate Powermate 5000W...

1 Answer

Generator wont put out enough voltage, only get 107 volts, is this a voltage reg. problem


This problem is either that the engine RPM is too low (most likely), or that there is something amiss in the voltage regulation. Get yourself a DMM that measures Hz, plug it into the output and see if you get 61.5 Hz, if not look for the adjustment on the governor spring. On some Powermates this is a screw that pressed on the governor arm, on others it's a little tab the governor spring attaches to that you bend. Do this at no load. FWIW 61.5 Hz is also 3750 RPM of the engine.

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