Question about Coleman Powermate Subaru 5000W Portable Generator

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I have a Coleman generator with a Subaru engine that needs a new governor spring. My repair place is unable to get one. How can I get one to them? Melissa

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Carry the old spring to a lawnmower repair shop and see if they can match you up with a spring. They may ask you for the make and model of the generator and/or the Subaru engine, so have that info with you . This info should be in the owners manuals.

Posted on Feb 08, 2011

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Posted on Jan 02, 2017

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


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

Nov 06, 2012 | Coleman Powermate Subaru 5000W Portable...

1 Answer

How do you adjust the idle on the Coleman 6250 Generator


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.

Nov 09, 2011 | Coleman Powermate Premium Plus 6250W...

1 Answer

It runs wide open all the time im wondering where idler arm setting is at


It sounds like the govenor spring has become disconnected or the clamp on the governor shaft has become loose and allowed the linkage to get out of adjustment. If problem has occurred suddenly it could mean the governor gear assembly inside the engine has broken and means the engine will need to be dismantrel to replace the governor gear assembly.
Check throttle linkage to see if spring is attached at both ends, one end on the throttle linkage and the other at the fixed point on the engine or to the end of the speed control lever. With engine stopped the spring should hold the throttle wide open and hand pressure on the linkage shoud be all that is needed to move throttle shaft closed to the idle position with no binding in the movement of the linkage.
If spring is OK and while engine is running, linkage should be able to be be moved to bring engine back to idle. If porblem has occurred gradually, then linkage will need re-adjusting. Loosen adjusting clamp on governor shaft, then holding linkage in wide open throttle position rotate shaft as far as it will go in the opposite direction to that requred to close throttle to idle . Re-tighten clamp.

Dec 11, 2010 | Coleman Powermate Premium Plus 6250W...

1 Answer

I have a briggs & stratton / Powermate portable generator; there is a lever with a black plastic handle on the end of it, right next to the 'choke - run' lever which has a red plastic tip on it. ...


The engine on your generator is also used for other applications some of which require an adjustable  throttle control. On a generator the engine must turn about 3600 rpm to obtain proper output of voltage and cycles. Upon further inspection of your throttle/governor you will probably find an adjustment consisting of a screw, nut or a tab on one end of the governor spring that can be reset for proper engine speed. (tab can be bent for more or less tension on spring) To check present governor setting, use a volt meter that has frequency setting. Make sure that generator is set to about 60 hz. (3600rpm) Good luck with your generator.   

Aug 04, 2010 | Coleman Powermate Powermate 5000W...

1 Answer

Unstable frequency


check your governor and linkage for build up of dirt and grime. You should be able to move the governor by hand, with some resistance from the springs. The governor arm should not rotate about the shaft protruding from the engine.

If governor seems to be in order, and engine cannot maintain RPM that it needs to (hunts), look towards the carburetor being fouled (clean out best you can, but don't soak since it is an EPA carburetor), air cleaner dirty (replace even if looks good), or loss of compression (check with compression tester, should be around 90 psi or better with engine warm).

Jun 08, 2010 | Coleman Powermate Premium Plus 6250W...

1 Answer

Engine speed varies


If the unit was stored for a long period of time (6-12 mo.) with gas in it, you may have a gummed up carburator. This is the most common problem with generators (lack of use)
The carb. would have to be removed & cleaned, specificly, the high & low speed jets

Sep 04, 2009 | Coleman Sport 1850 Generator

2 Answers

Generator will not produce electric power


Hi there,
Check the air cleaner to make sure that it isn't clogged with oil. If you find any significant amount of oil you may also need to clean the carb. Also check the spark plugs for fouling. Once you're convinced that the engine has no service related issues, check the governed throttle setting. To do this find the spring that pulls on the governor arm and look for either a tab to bend up or a threaded rod to tighten at the end of the spring not connected to the governor arm.
Regards,
Carl

Feb 10, 2009 | Coleman Powermate Powermate 5000W...

2 Answers

Porter Cable 5500w generator (10hp BS) will not regulate speed.


While attending college I worked at a tool rental center and learned a great deal about matching generators to customer requirements and troubleshooting customer owned units. There are simple tests that you can perform, however, first some info on what to expect from a generator. Most generators are overrated and under powered. You should only expect to get about 60 - 75% of rating. Example, a commercial honda 5000w generator has an 11hp motor that can only produce about 9.5 hp at 3600 rpm. If a customer needed 5000w of power, we would rent them an 8000w generator because as the generator is loaded to max the voltage will drop. You generator will probably only provide steady voltage ex. 115v at 60 cycles to about 3500w then voltage will begin to drop. New generators have automatic voltage regulator that varies the power to the armature increasing/decreasing the power of the magnet. These voltage regulators suffer a high failure rate and are expensive. If your generator is not giving you 3500 watt at 115v 60 cycles your engine may have a few problems and your power generator end may need tweaking. (I would not expect to achieve 5500w at 115v with briggs 10hp) .
The governor is about 2 inches in diameter and turns off the cam gear inside the engine. It is flyball type with two or three small arms that react to rpm. The faster the engine turns, more force is applied to the governor arm to reduce engine speed. Easy to test, with engine running use finger pressure against the arm to increase speed and you should feel a greater resistance as the engine speed increases. Another simple test, remove air filter to expose butterfly inside the carb. Move the governor arm and check that the butterfly opens fully. If it does not open fully linkage and governor is not set correctly. Next, start engine and load generator up to max and check that butterfly opens to full as the load increases. When the butterfly opens all the way under load the engine is at max. Add up the wattage of all the tools/appliances you used to load the engine to get an idea of max load . Lets assume that the shop adjusted the governor properly, if the governor was not working the engine would over rev. and damage would occur. As you were told the governor spring controls speed and can be adjusted somewhat by bending tab or adjustment screw. But a review of your generator manual or that series of briggs engine will show that there are several governor springs available and different placement holes on the governor arm to attach the spring that will change the power curve. Pulling on the spring can only do so much, however changing the spring to different gauge /turns/material or differnet location on the governor arm will cause the engine to perform differently. These springs are sold thru briggs dealers by part number for your engine. This would be considered tweaking to get a different power curve.
Now for the generator. Some generators have a capacitor incorporated in the windings. This capacitor must measure within 95% of rating. Remove from circuit for testing. Finally look very carefully at the commutator rings for any evidence of brush bounce. If the brushes do not perfectly seat you will lose power. If your generator is brushless you can only hope that the diodes are within spec. because it is too difficult to test them. They also must be removed to test. Finally if your generator has an automatic voltage regulator the only test would be to replace with a known good part. At the rental center we stocked spare parts so that we could quickly find fault. There is soo much to learn and the life too short. I hope this helps good luck, please email your questions.

Dec 24, 2008 | Coleman Powermate Premium Plus 6250W...

1 Answer

ENGINE OVER SPEEDS WHILE RUNNING


This is almost surely a problem with the governor, check it like this.
Have someone with a finger on the kill switch.
Watch the governor arm while starting the engine, if it does not move almost immediately after starting the engine it is broken.
This is not a simple repair as it involves taking the crankcase apart, you'll have to contact robin/subaru to get a parts list in order to get the right governor spool and weights.
For an experienced technician this is about a 2 hour repair task.

Hope this helped,
Carl

Dec 03, 2008 | Coleman Powermate Premium Plus 6250W...

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.

Oct 22, 2008 | Coleman Powermate Powermate 5000W...

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