Question about Electrical Supplies

1 Answer

Automatic Engine Idle Control

I have a Coleman Powermate Premium Plus 6875. Model # PC0495503
13 HP Honda GX390 (VXG* GCAA-4003947)
The generator works fine when I adjust the idle up high. But when it is adjusted to idle at a low or normal speed it does not deliver enough power to run things properly.
Now my question is I'm not sure if my unite has auto idle or not apon futher investagation I discovered that what I think is the control for this option is not hooked up. There is a plunger type of device that i followed back from the carb throttle linkage and the two wires are cut off,not connected to anything might this be the problem.Were should these two wires be connected to.?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

RPM of the motor and the voltage hertz output of the alternator are directly connected. In this case the motor speed must be set on correct alternator output and locked on that speed. (Star & run on the spicific speed). Normally it would be 1 800 RPM = 110 volts = 60Hz, OR there are in some cases that RPM will be doubled that. It all depends on the make of the unit.

Posted on Feb 11, 2009

  • Lawrence Merchant
    Lawrence Merchant Dec 09, 2010

    I have exactly the same problem on a 6500w model with the gx390. The engine runs fine and you can adjust the throttle screw to put the correct voltage/power out at any load but it will not adjust its RPM for load changes. I also have the electric plunger with the wires cut off. It came that way from the factory though. So I guess my question is what actualy works as the governor/throttle control on this unit because thats where my problem must be? Is there a mechanical governor inside or does this plunger do it or is it something else?



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My coleman generator idle does not go to low idle when there is load on the generator it has idle control.

I could not understand, it doesn't go in low idle when load is connected or no?

It should go to low speed idle with load under 20 - 30 W.

Jul 10, 2010 | Coleman Powermate Premium Plus 6250W...

1 Answer

Engine won't maintain constant rpm

Hello There

Try cleaning or replacing the spark olug.

Hope this helps.

Many Thanks

May 22, 2009 | Coleman Powermate Premium Plus 6250W...

1 Answer

What carb does the powermate 6875 use?

check this web site you can down load the manual and parts list for your gen.

Mar 24, 2009 | Coleman Powermate Powermate 5000W...

1 Answer

I need to know the procedure in starting a Coleman Generator 5500/6875 11.0 hp Tecumseh. I just purchased it and the previous owner lost the manual for instructions. Please help me. Dolly

I'm not familiar with this particular generator but starting most of these is pretty much the same.

Turn all switches to the generator OFF locate the Carbuerator and put the choke on if it has a small bulb pump it a few times, now here is a trick I use I buy a can of starter fluid and spray a quick spray close to the air intake or air filter. This should work.

Feb 24, 2009 | Coleman Powermate Premium Plus 6250W...

1 Answer

Add auto idle to generator

Your genny should already have this feature as it is part of the function to maintain the output voltage, if it isnt working I would look for a service manual for it and taker it from there as there can be many things that could prevent it from working properly

Dec 31, 2008 | Coleman Powermate 7,000 Watt 13 Hp...

1 Answer

Engine surge up and down

Cleaned the carb again and set idle stop screw up

Nov 17, 2008 | Coleman Powermate Premium Plus 6250W...

Not finding what you are looking for?
Electrical Supplies Logo

Related Topics:

1,371 people viewed this question

Ask a Question

Usually answered in minutes!

Top Electrical Supplies Experts

Craig Butler
Craig Butler

Level 3 Expert

1723 Answers


Level 3 Expert

3289 Answers

Gene Haynes

Level 3 Expert

5245 Answers

Are you an Electrical Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides