Honda eu2000i problem

[wingover]

Hi,


I have a Honda eu2000 that was working fine last year. I didn't use it for maybe 6 months and when I started it, it runs with the chock on at low (or what you will consider normal) RPM. When I put the chock back (normal run) in runs in very high rpm.


Any idea what is going on?


Thanks,


Mike

[mtndog]

The closed position (choke lever to the right) will enrich the mixture for cold starting. Is it possible you are operating thinking the positions are opposite of this?

[woodfox45]

Don't quite understand how high it is running . Did you try the eco switch to see if it slows down ? You might want to take it to a repair shop .

[rideair]

Like what mtndog said and woodfox45 said.

Now, if you are having to keep the choke on just to keep it running, that's a whole different problem and could very well be where you let the gas set in it, being CA has 50 million different gas blends depending on the day it is used(don't ask me why, nor do I care to discuss)it could have screwed up the jets in the carb, some gas turned to varish, etc... and will require cleaning the carb.

If possible, only run straight gas and not the crap people put in their cars for the most part that comes from corn and you'll be far better off.

Enjoy,

[r carl]

You will have to remove the carb and clean it and put in a new pilot jet.

[robert@honda]

I will guess the EU2000i runs "smoother" with the Choke ON, is that right? Does it run a little rough with the Choke OFF?

If so, these are classic symptoms of a partially clogged main jet or nozzle inside the carburetor. Sometimes, it may be cleared with the addition of a fuel system cleaner like SeaFoam. If more severely clogged, a disassembly, removal of the jet and nozzle and complete cleaning may be necessary. Not a difficult DIY repair, and be sure to use a good quality spray carb cleaner and compressed air for best results.

Here's a nicely documented thread that describes the process, FYI:

RV.Net Open Roads Forum: Honda 2000i Carb Job With Photos Must Read!!!!!

You may also want your local Honda dealer to inspect and evaluate the unit too; here's a link to find one in your area:

Find A Honda Dealer

[Rocinante]

Ever since we had a similar problem with a much bigger home generator, we:
1. Close the fuel valve to the carburetor and let Jenny run until she shuts down due to lack of fuel.
2. Only use pure gasoline from our local grange
3. Add sea foam gas stabilizer to the fuel tank, especially if we have to break rule #2

[handn]

Carb is plugged up with crud. You can try to put carb cleaner in the fuel, run it for a while and see if it un plugs.
Unless you are experienced, it is unwise to take the carb apart because of the small parts and passages. Take it to an experienced small engine mechanic. For an expert, repair is fast and easy.
Next time you plan to store the generator run it out of fuel and drain the float bowl of the carb. There is a screw at the bottom of the float bowl, unscrew it and the remaining fuel will run out through the hose through the bottom of the generator.

[dznf0g]

To run fuel out (since the knob turns off ignition and closes fuel valve), remove the side panel and locate the white connector to the right bottom of the opening. (It has wires that run to the shutoff valve) Disconnect the white connector and shut off the fuel valve. Engine will continue to run until fuel is out of carb and line up to valve. Re install the connector and drain the little bit of fuel left in the bowl by loosening the drain screw.

[BAB]

There is a very good YouTube video on how to clean the carb on the EU2000. They aren't really that complex. Get a can of spray carb cleaner first.

[wingover]

Originally Posted by robert@honda

I will guess the EU2000i runs "smoother" with the Choke ON, is that right? Does it run a little rough with the Choke OFF?

If so, these are classic symptoms of a partially clogged main jet or nozzle inside the carburetor. Sometimes, it may be cleared with the addition of a fuel system cleaner like SeaFoam. If more severely clogged, a disassembly, removal of the jet and nozzle and complete cleaning may be necessary. Not a difficult DIY repair, and be sure to use a good quality spray carb cleaner and compressed air for best results.

Here's a nicely documented thread that describes the process, FYI:

RV.Net Open Roads Forum: Honda 2000i Carb Job With Photos Must Read!!!!!

You may also want your local Honda dealer to inspect and evaluate the unit too; here's a link to find one in your area:

Find A Honda Dealer

I don't mix up the chock on/off position for sure. I put chock into "ON" (close the air into the carb) start the genset and wait a minute to heat up. I then close the chock (to run lean) and the Honda rev the rpm real high. the eco switch seems to do NOTHING.


Clean the crab? or is this an electronic problem?

[robert@honda]

Originally Posted by wingover

I then close the chock (to run lean) and the Honda rev the rpm real high. the eco switch seems to do NOTHING.


Clean the crab? or is this an electronic problem?

Okay, that does not sound like a choke/carb problem. It does sound like an issue with the Eco-Throttle.

Honda issued a Service Bulletin for an issue with the throttle control motor back in 2010; the internal gears could fail, and a new-style motor was developed. I've asked the engineer for a serial number range, but for now, I can say the old-style motor had a yellow/orange label on top, while the new-style is white.

FYI, if there is any factory warranty remaining on the unit, and this indeed is the problem, it will probably be covered. If you'll share the serial number of your EU2 with me, I can tell you if there is any warranty remaining on it.

[r carl]

Originally Posted by wingover

Hi,


I have a Honda eu2000 that was working fine last year. I didn't use it for maybe 6 months and when I started it, it runs with the chock on at low (or what you will consider normal) RPM. When I put the chock back (normal run) in runs in very high rpm.


Any idea what is going on?


Thanks,


Mike

Originally Posted by wingover

I don't mix up the chock on/off position for sure. I put chock into "ON" (close the air into the carb) start the genset and wait a minute to heat up. I then close the chock (to run lean) and the Honda rev the rpm real high. the eco switch seems to do NOTHING.


Clean the crab? or is this an electronic problem?

Sorry I didn't read the last sentence, I thought it didn't rev up when your choke was off. Yes its electrical, maybe just the switch. Your eco switch isn't working for some reason.