Honda EU 6500 is surging 

You have no idea how much I’ve been going in circles trying to find out what was going on. Wish I saw your video a couple weeks ago.

THANK YOU SO MUCH FOR POSTING THIS!! I had exactly the same problem, dead battery and after jumpstarting it, it was surging. I used stabilized gas and it was

You sir, are a life saver!!!! Thank you! Note to anyone who ran across this video; Whether it's surging on ECO mode on or off, it still needs the battery cover ON the unit to cure the surging. Even with no load, with ECO mode off... mine was surging. After a half a can of sea foam... I saw this video, and WHA LA! Problem solved (since I had the battery cover off to attach a different 'tender' during my troubleshooting). THANK YOU!!!!!!

Just bought one today with 4 hours on it😍. The owner said it had a surging problem, and demonstrated it with the battery cover off. Needless to say, I got a heck of a deal!

I was looking for a video for rebuilding my carb, and ran across this video. I hadn't used my generator for awhile and had to jump it because of a dead battery. I experienced the surging problem and assumed carb because the gas was new. The door being off was the problem! Thank you for the video.

Nice video, thanks. Later I found in page 88 of the owner manual this "Never operate the generator without the battery maintenance cover in place, as poor engine and generator performance will result" The reason is that behind the battery is the generator air intake located.

Thank you SOOO MUCH!! Our power was shut off, and I REALLY needed the generator to work! After the unit started surging, I checked the air filter, oil quantity, etc. and was about to break out the manual to try and figure out how to adjust the idle. Luckily, I watched your video! Within 2 minutes, the problem was solved. You are a life saver!!

Thank you, my battery was dead so I pulled it out and pull started it. The cover was off( who would have thought it mattered) and it was surging. Your video came up first on a quick search. Ran out to the garage, attached the cover and it was immediately fixed. I assumed a carb prob. Thanks again

Oh My GOD, that was the problem. Thanks so much for creating this video. I went back and found in the owner's manual that indeed that little battery cover door has to be on or poor performance will result.

Bloody lifesaver! Thanks to your video, I tore less hair out than I normally would have. Something so simple, yet not the sort of thing you would think would cause that problem. Thanks again!

Wow, thanks. Saved me a trip to the shop. I had the problem on regular speed, not even on eco throttle and this solved it. THANK YOU!

Thanks. This video will save people from a lot of headaches

Thank you so much. I just pulled the carb and cleaned twice and was still doing the same thing. I also had my battery low so the cover had been off. I thought I would check RU-vid for a video to help troubleshoot. You solved the issue! Thanks!

Thanks for your video!!! I was jumping a weak battery and had the cover off. My 6500is surged exactly as you described. Problem solved as soon as I installed the cover. Terrific Video!

Thanks for sharing!!! Went to Honda dealer and asked what the problem could be and dealer told me I had to "rebuild" the carb. You saved me from having to take apart the carb. Thanks again for sharing👌🏼👌🏼👌🏼👌🏼👌🏼

your are a live saver, could not get this to run, was going to drain fuel again, i had the batter cover off, put it back on and not it runs! i cannot believe that worked, thank you for the video

Thank you!!! My EM5000is generator wouldn't start due to bad gas sitting in the carb too long. The battery was also dead, so I jumped it with my NOCO lithium jumpstarter. After cleaning the carb, it fired up but was running rough and surging. I assumed it was a bad carb and took it all apart and cleaned it again, same problem. Came across your video and BAM! Back in business. I even called two Honda dealers in my area describing the problem and neither mentioned making sure the access panels were installed. This should be in the troubleshooting section of the manual! Shame on Honda for not explicitly stating this in the manual. Thanks again for sharing, much appreciated.

I would not have thought that was possible in a million years. Thank you.

Wow that does make a difference! Would have never thought. Just tore carb out and cleaned it and didn't help a thing but when i did this exact thing to my generator it ran perfectly THANKS FOR THE VIDEO

THANK YOU ! ! ! I was checking my battery if it had been sitting for a while and left the cover after I ran it for a while .. replaced the batter cover and it smoothed out ... again, thanks for that tip ..

Wow, the problem was the missing cover, put cover on it runs like new, thank you very much!

Wow, crazy. I have done so much carb work and fuel draining to solve this problem, and never would have guessed it was this cover. Thank you so much. The interwebs and RU-vid save the day...hopefully. I just have to reassemble it. I just finished cleaning the carb for the second time, and was going to research the solenoids that go on the top.

Thanks so much! I didn't have this happen with mine yet, but I would have been tearing the carb apart and dumping the fuel had I not read this.

Thank you, this helped me solve my problem.

BIG headache save for me. Thank you!!!

I had the same problem, with the cover on. Cleaned the carb and now it's good

same thing happens on all my 6500is units. its amazing how finely tuned they are that the battery cover has that effect on them.

OH MY GOD! I just did a complete cleaning and gasket change on the carb for this very reason. In fact the Honda Shop Manual says to have all access panels on when running the generator but they don't say why. Can't wait to try putting the covers on and seeing if mine will work smoothly again. The difference with mine is that it surges under no load.

Totally just saved by sorry butt from pulling the carb and getting off on the wrong track. Thank you!

Wow that is crazy - I can't believe that. Wonder why it does that? Thanks for the vid!!

This is a great tip. Thamks

Great info !

Thanks! I would've dismantled my generator looking for the problem😂

It worked, you are awesome

You are my hero!

You are the man... Thank you.

holly crap, thats some lean jetting if a tiny bit of additional air causes that!

Thanks for this video !!!!!!!!

Thank You saved e the cost of a new carb, that would have not solved the issue!!!!!

Legend! Love to know the reasoning!?????

Yes I discovered that by accident, it wasn't running right and I had a dead battery so I put the cover back on after I took the battery out and it started running great.

VERY GOOD .

Easy fix, thats crazy!

Wow who knew. Thanks

Also, if you get sick of dealing with the expensive YTZ14S battery issues, and switch to an external battery, you will need to block the vent holes in the battery door. The battery blocks a significant amount of air flow in the battery compartment. I switched over to a slightly larger external Interstate battery tied in via a connectorized cable. The Interstate battery was $29 versus $137.

Same thing happened to me. But my battery was stolen. I figured it may need the cover on it but that didn't helpuvh. I ended up putting tape over the holes and that helped a little. Do I'm wondering if it also needs the battery in it.

Thanks

Thanks so much! I was just a day away from taking my carburetor apart. The battery cover was the ticket! Here's another video demonstrating the symptom and solution: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Vj0FbJ11fh4.html

Says right in manual to not run with door off. You would have to see for yourself but the enclosure has a tremendous amount of suction to cool the motor and generator stator and sound proofing.with this door open will disturb the air pressure for the fuel injection no carb. You can run the trickle charge plug through the vent no worries. When your motor surges it's running lean. Either not enough fuel or too much air....in this case too much air. I use premium with Startron fuel stabilizer in it...always. I'm a little disappointed that this model doesn't have a fuel shutoff. I'm making a fuel transfer kit to evacuate the unused fuel when storing for obvious reasons. Also to be able to fill from one of my vehicles if needed easily. Gave my father my gas tapper . I also got Amsoil break_in oil for air cooled engines to break it in too. Ill be running Amsoil for long haul too. Just ordered a 7/16" Pewag security chain don't forget that for the next outage...thieves can hear a smooth running EU from long ways...

Anyone know the fix for the eu6500is... I’m getting error E02 - Battery abnormal.. battery is fine

i have a 7000 almost the same problem..i changed my air filter and move the plastic where it sucks the air..i didnt notice it was literally on the battery i pulled the plastic like 3 inches back problem solved....

holy crap...wonder why

Unbelievable!

I have a eu 7000 and I'm have the same problem

I'm totally inexperienced in this but I was gifted this generator. It needs gasoline but after a few times starting it with the key, it seems that the battery has died. The instructions say to charge it but how? Also what type of gas do I use?

Why would the lack of a door cause this problem?

my door was loose I tightened up but did not fix problem

I have an older 6500 without battery start, and it surges just like the one in the video. I cleaned the carb, jets, etc, and it still surges at idle. I need to put about 4KW load on it to make the surging stop. Any ideas, anybody??

Didn't work for me and my gas is fairly new.

wow freaky

Hmm, anyone have any thoughts on what's going on here?

I believe you, But the logic behind this makes no sense. How does it know the cover is off? There are no sensors involved with the battery door.