Honda Mmd 5000 Watt Electric Start Generator W/ Engine Ngk 6000HE - Answered Questions & Fixed issues

Have a look on u tube for a video on this some guys put up some good stuff on there it may help you out

Honda Mmd 5000... | Answered on Jan 17, 2018 | 86 views

If it was the battery or a fuse it would just click, but if it doesn't click then the starter relay may be bad. Could be a wire in the switch also.

Honda Mmd 5000... | Answered on Jan 27, 2015 | 59 views

Those generators are set up with a low oil saftey but your gonna want to check compression anyways just to verify it is where it needs to be. Im gonna guess its to be between 120-160 psi, check your manual for the service limits. after that check your air filter, valve lash, fuel filter etc etc.

Honda Mmd 5000... | Answered on Mar 29, 2012 | 183 views

My goodness I just saw your post and I see it has been around since Dec 2010. Your post appeared after I answered a much newer post. (site operates in this manner)

Anyway if you have a 1986 generator and you have 12V DC to the starter with the key on the most likely problem is the brushes in the starter PN: 31215-ZE2-003 or 31215ZR2003

The only problem I have is that I do not know if this is a set or an individual brush. Use the toll free phone number on the link above to confirm quantity.

Once you have the starter removed use some 220 grit or above sand paper and clean up the copper contacts on the starter armature and lubricate the bearings.

If you do a continuity test of the armature using the copper contacts your meter leads must be exactly 180 deg from each other (opposing) to get a resistance reading.
Reading out the stator winding is a matter of reading the + lead terminal to the case.

Thanks for choosing FixYa,

Honda Mmd 5000... | Answered on Mar 29, 2011 | 693 views

Make sure you are reading the correct pins of the 4 prong plug. Capacitive coupling would give the low reading if you were reading from a hot one to the CASE type ground pin. You should find two readings of 120 between ONE of the 4 prongs and each of the hots and 240 between the hots. Between any hot and the safety (CASE) ground you will see a voltage that depends on the impedance of your meter and the electrical capacitance of the windings to the case. something up to 1/2 of the 120 volts would be expected so the 24 vollts would be perfectely possible.

It is important to identify which prong is the neutral and the two hots. The fourth prong then is a safety ground and UNLIKE your service entry of a residence, it is NOT tied to neutral at the generator.

Honda Mmd 5000... | Answered on Mar 29, 2011 | 412 views

Typically that's because the fuel evaporated and deposits have gummed up the carburetor.
You may be able to get it to run by starting it with some starting fluid, but most likely you'll need to clean out the carburetor.
It's always best to drain the fuel from a gasoline engine if it's to be stored for a long period of time. After the fuel is drained, run the engine until the carburetor and fuel line have drained.
You can also use fuel stabilizer to help prevent the problem in the future.
Even if the fuel didn't completely evaporate, stale fuel doesn't work well when starting the engine. Another reason to try starting fluid.
Good luck.

Honda Mmd 5000... | Answered on Aug 31, 2015 | 806 views

This is what I assume is for the starter motor for the generator. I would use for this a #8 welding wire style cable. This will supply enough power for starting.

Honda Mmd 5000... | Answered on Jan 30, 2011 | 84 views

If I understand the problem correctly, it runs fine after you cleaned the carb, but the auto idle will not engage when you put a load on it. First if it has a switch to turn the auto idle off try that. if it does not rev up, then the magnetic controller is stuck. There is a magnetic coil which is connected to the throttle and this either pulls or releases the throttle when load is applied. My guess is that this is hung up a bit. Look for a small round coil with wires coming off it that is connected to the throttle assembly. You could also try tracing the wire from the auto idle switch backwards. This may just be stuck in the idle position by corrosion. especially if you live in a humid area or one near the ocean. gently try to work it a bit by hand (when the generator is not running) and try a bit of wd40 or the like.

Honda Mmd 5000... | Answered on May 03, 2012 | 808 views


All though that is on the very high side it is acceptable for a no load voltage... as soon as you put nay load on there it will drop....
You want the voltage to be on the very high side in a no load state so that you have room for it to drop some with a load...
I would not worry about what you have there...


Honda Mmd 5000... | Answered on Oct 24, 2010 | 170 views

Gas or Spark Plug!

Honda Mmd 5000... | Answered on Oct 06, 2010 | 344 views

There is supposed some oil in there. There is a tube to the carb intake that allows flow like a pcv valve

Honda Mmd 5000... | Answered on Oct 05, 2010 | 344 views

Is that all you ran it was the one time? Sounds like a mouse. Or bugs got in there and built a nest, something just burning off. Get the air gun on that thing and blow it out, then try it again, hopefully it is just dust and dirt piled up in there.

Honda Mmd 5000... | Answered on Mar 01, 2010 | 337 views

Connect the black lead (negative) to the frame of the generator.

Connect the red lead (positive) to the big post on the starter solenoid. There are 2 big post terminals on the solenoid. Connect the battery positive lead to the one that DOES NOT go to the starter motor.

Honda Mmd 5000... | Answered on Jan 27, 2010 | 625 views

there are fuses located on the gen..check those

Honda Mmd 5000... | Answered on Nov 17, 2009 | 538 views

Is the 'automatic' switch set for 'manual'? The switch can be set for manual or automatic for the engine to be in high RPM, or throttle down by itself (auto). The control board that brings it up to full RPM is not working. Set it for manual.

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

Honda Mmd 5000... | Answered on Sep 23, 2009 | 376 views

Is this a new device for you or have you used it in the past?

Generic comments follow:

In my experience, there is a switch that ya turn off to start the device and allow it to warm up. Following this short period, ya turn this switch to the on position and a governor takes over - slows the engine to an idle until it sees a load at which time it runs the engine speed up. In the off position, the generator part of this combo is turned off.

In my experience, the protection devices on small generators are auto reset.

Let me know if this works for you.



Honda Mmd 5000... | Answered on Sep 23, 2009 | 519 views

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Honda Electrical... | Answered on Oct 15, 2019 | 14 views

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Honda Electrical... | Answered on Oct 10, 2019 | 24 views

For your question, i have replied many people, why generator set can start but not generate electricity?
Here is some reasons for reference:
1.After the diesel generator is stopped, the residual magnetism is often lost, because the material used for the magnetic pole of the exciter is close to the soft steel, and the residual magnetism is small. After the shutdown, when there is no current in the excitation winding, the magnetic field will disappear.
2.The magnetic pole of the diesel generator loses its magnetic properties.
3.Damage of excitation circuit components or circuit breakage, short circuit or grounding phenomena.
4.The exciter brush is not in good contact with the commutator and pressure of brush holder is insufficient.
5.Excitation winding wiring error, opposite polarity.
6.Stator winding and rotor winding of generator set open circuit.
7.Poor contact between diesel generator brush and slip ring, or insufficient brush pressure.
8.Diesel generator lead wire wiring is loose or switch contact is poor.
9.The fuse box is fused.
10.The "auto-manual-de-excitation" switch on the control panel is in the de-excitation position (automatic generator set has "auto-manual-de-excitation" switch).
11.The voltmeter is damaged.
12.Rotary rectifier module is damaged.

Honda Electrical... | Answered on Oct 09, 2019 | 28 views

Most of the time it is either the Capacitor or AVR that has blown (depending on what is fitted on your generator.). Check out our videos on how to test them.
We hold a full range of Generator AVRs and Capacitors.

We have a whole Help Center and Engineers dedicated to helping people fix their Portable Generators. In addition to this we have a "Parts Search Service" if the part is not listed on our site. Check us out on our site.
Parts Spares for Generators and Small Engine Machinery


Honda Electrical... | Answered on Aug 19, 2019 | 73 views

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