Old Honda EU2000i Generator Leaking Fuel

hey guys welcome back so today I'm working on this Honda EU 2000i this one actually belongs to a local subscriber he noticed it was leaking fuel he called a few local shops and none of them wanted anything to do with this generator he then called the Honda dealer and they tried to sell him a new one so yeah he wanted nothing to do with that instead he tracked me down and dropped this off the other day so hopefully it's something simple like a needle that's not seating properly now he did mention he had to use a bit of Choke to get this to run right so regardless I would say the carb has to be cleaned you know maybe it's not the carb that's leaking it could be anything between the fuel tank and that carburetor so he drained the gas out so I say we put some back in get this cover off and see if we can find where the leaks coming from pretty clean inside so we'll start with just a little bit of fuel don't see any leaks yet of course this does have a fuel pump so we may not see any leaks until it's running let's just turn the fuel valve on although the Tank's pretty low so I don't think it'll even gravity feed but I would say it's looking pretty dry so let's keep going we'll fill that tank up and see if we see any signs of a leak fuel is filled pretty much to the top and I don't see any signs of a leak nothing under the machine and nothing actively dripping so that I would say is a good start check the oil real quick because I think the next move here is to start the machine and see if we get any kind of a leak yeah plenty of oil all right let's try starting it joke's already on we got the fuel and the ignition on and the vent is open and I just saw a drip of fuel up here on the carb actually it's coming right from between the carb body and with the air box connects so yeah let's stop pulling it I I would say it's a carb issue so let's get the air box off and get that carburetor out of there and there's a better look at where the leak is coming from the carb I would say is filled with fuel and it's flooding over and that's why we have a drip where we do so that should be an easy fix and I find it surprising that no one wanted to look at a leaking carb it's probably the most common thing to fix on any small engine come on and to get this out I think it's just three eight millimeter nuts maybe that one's a 10. [Music] no that's an eight it's just the breather tube I am disconnecting and I think that's all that's connected to this box a little bit of RTV around here which does not hold up to gasoline so do not use our TV and carbs it's not going to work so to free this carb I think we can leave these lines connected we do need to disconnect the fuel line and I think there's a plug to disconnect the servo so once we get the fuel line out of the way we can slide this out a bit and get that Servo unplugged foreign this cap should just come off it's just a few tabs holding it in there we go and the servo just unplugs like that all right let's start by getting the gas out of the carb probably should have done that before removing it from the engine and that screw is not coming loose let me try the impact there we go the fuel that came out looks to be pretty good so I'm going to start I think by getting this Servo off one thing to note though the servo shaft goes down into the throttle plate and it actually goes into this plastic piece that's not actually connected to the throttle and there's a spring in there and it's easy to lose that spring so when you lift this assembly off you want to keep your thumb right there keep everything in place so you don't lose any parts I'm going to use the impact for this as well these screws strip out really easily well that one's pretty loose and that does not fit so let's try the screwdriver there we go hold that spring in place that lifts right off like that and that's the spring I was talking about and this piece right here so that comes out together like that and now we have just a normal carb so let's get the bowl off looks like a 10 millimeter it's very clean it's kind of surprising actually that the needle was having issues and some more RTV here so that I think is going to be an issue for reassembly you know this gasket I'm not as worried about because it's the one between the carb and the air box it doesn't have to be perfect but the other gasket on the engine side has a bunch of this on it as well so it should be replaced potentially cleaned up but I would say replaced anyway worry about that later needle does not appear to be stuck Let's uh pressure test it real quick all right let's try this out like this the valve should be closed and I should be able to build pressure I would say at least five PSI yeah and no issues holding pressure so that is interesting why was it leaking let's keep going yeah it looks like it's bleeding off anywhere above six PSI and that that seems good to me so I'm not sure why this one was leaking unless it was just a little bit of junk in there needle looks fine don't see anything in the seat take out the pilot jet starting with the idle set screw and to the main jet let's see does that fit yes it does foreign jet was loose in there I guess it makes it easy to clean but that could affect the way it runs wouldn't cause a leak though and that's it this carb actually looks to be in really good shape so yeah we'll run it through the ultrasonic real quick put it back together and we'll try it again but based on what I'm seeing right now I don't think this should leak I'm gonna guess this Main Jet is pretty small let's try a 76 yep that fits 74 fits I did feel a little plaque that one fits yeah so the last one that actually fits is a 73 just clean off any plaque that might be on there especially with an engine this small a little bit of plaque will make a big difference in how much fuel it gets it should be enough we'll clean out the emulsion tube but not with that let's try this make sure it's clear through the center and then we'll check these passages right here so this is the air intake for the pilot circuit seems fine that's most likely the bowl event and there are some tiny holes on the side here so let's try to get those clean I think that's it just gonna get this o-ring out if I can because the Harbor Freight Degreaser does tend to Shrink rubber so if possible you want to remove anything like that foreign taking this out of the ultrasonic I did wash it with some water and then use compress air to dry it I think that looks good next I think we'll do the emotion tube the main jet and let's see needle I'm ceiling fine need to make sure that seats all the way down right now is not and now it clicked in place it's the idle set screw kind of helps hold that in and you know this generator does change speeds but that is Servo controlled you really shouldn't have to use the set screw for that but I am wondering if we want to give it a tiny bit you know that way if the servo decides to close it at shutdown for some reason which it should and it should open it you have a little bit of a chance to get it started that should do it and just make sure the throttle still moves that it's meshed properly with the servo seems like it is then we just tighten it down with these two screws one on either side that's pretty much it so let's get this back on and actually while this was cleaning the ultrasonic I did manage to scrape off most of the RTV on both the gaskets from each side of the carb so I think I think we can put this back on and give it a try okay let's get this back together we'll start with the servo just make sure that plug is seated fully like that and we'll get the cover on Maybe let's get all those started loosely and once we're sure everything is going to go in we'll torque it down okay let's try to start it foreign it's hard to believe it but it's leaking again that I find odd it could hold 5 PSI no issues before cleaning it and after cleaning it I tested it again I just blew through it it was not leaking at all so where is that fuel coming from you know is it an issue with the pump maybe building up too much pressure not sure but I do have another carburetor for an EU 2000 so I'm tempted to put that one on that one I know does not leak and the surprising thing too is that even with this leak the engine should have started and it didn't it's very odd anyway let me pause it real quick I'm going to throw on the other eu2000 carb and see if we get a different result I think I see the issue here if you look at the float that float is supposed to be parallel with the body of the carb and it's not it's sitting down quite a bit and it's actually almost bottomed out so there's not a lot of pressure holding that needle closed because of that and if you look at the other eu2000 carb I have that float is almost parallel with the deck of the carb when compared to this one so I'm going to take the needle out of here move it into here and see if that corrects the issue actually I just moved the whole float and needle over foreign yeah that's a big difference let's try that out all right let's try this again jokes on vents on and hopefully we don't flood and because it's not gravity fed it does take a few pulls to fill that bowl up let's turn the choke off the good news is it's not flooding it's not starting either I'm going to try moving the throttle a little it's possible it's in the closed position when these engines shut down the servo opens the throttle it's the last thing it does before it loses power and when I reassembled it possibly may not have put it in that position so I'm going to try to move it all right it's definitely open now oh all right we get no signs of life so I'm going to crack the drain screw just make sure this fuel making it into the carburetor yeah fuel's making it in there so the good news is we don't have a leaky carb anymore but the engine's not starting and that's likely due to it being flooded earlier so I'm going to leave the choke off we'll just pull it a bunch until we get a spark and hopefully it'll run yeah it's going to be flooded or we're not getting spark so let's pull the plug out and take a look okay let's just check the spark real quick which I know we have it it has popped a few times it actually backfired earlier when it was getting too much fuel when it was flooding out so most likely we just have a wet plug all right let's try it it wants to go so I couldn't see the spark tester but I'd say we do have spark let me just get that plug out anyway and take a quick look yeah it's pretty wet a bit of carbon on it so that's most likely why it's not sparking anyway I've got a new plug so I'm going to throw that in there the old plug was a cr5hsb and that's what the new plug is I've already checked the gap and it's perfect let's try it again it's got to work this time we'll turn the choke on since we know we have a dry plug [Music] finally this thing fired right up first pull engine sounds good and it's making power more importantly we don't have any leaks on the carburetor so yeah just a bad needle and either a bad plug or one that was just flooded out I would say by the looks of it or maybe a combination of both whatever it was we're now back in business so I say we get the cover back on maybe try to clean this up a bit bring it outside and put her to the test I guess since the engine's warm I'm going to change the oil before putting the cover back on and if you've ever changed the oil on an inverter generator you know it's a pretty messy job and you're supposed to just tip it out and let it kind of drain into something and that kind of works but it does make a big mess so what I like to do usually is just suck the oil out generally it's a lot easier and it makes quite a bit less mess and the oil is pretty dark so it it does need a change and these engines don't take a lot of oil about 0.4 quarts or just under 400 milliliters that's about it yeah despite the way the generator looks I don't think it's actually really dirty I think it was just transported quite a bit in the car so yeah it's not that dirty so I'm just using some WD-40 to help clean it up and of course that'll give it a nice shine it's only temporary though you know I think the real fix for this would be new Plastics but yeah I don't think it's really worth it so we'll just spend a minute shine it up then we'll get it outside I'm gonna try a little bit of acetone here this is stained and my usual tricks aren't getting it off so I will start with a little small spot I don't think acetone will cause an issue here but yeah I don't want to cover the whole thing and then find out that it just melts the plastic I'm gonna take a second and just get these old stickers off and I want to wash this writing off as well because I picked up some new stickers to replace these old ones and the ones that are missing foreign a little bit get the other side all right let's get this thing started it's actually been about a week so it'll be interesting to see how this starts after setting for that period of time and once it's started we'll take a look at the meters here the one on the left is the oscilloscope we can see the sine wave output with this meter there is a lot of glare here so most likely I'm just going to take a screenshot of it and put it up on the screen we've got a meter here that'll measure the harmonic Distortion ideally you want five percent or less and we have the kilowatt that'll show us the voltage in the Hertz so let's get it started and see how it does all right [Music] foreign that was actually a low oil shutdown so huh pretty sure I put oil in it and that is actually an issue I had with my own Honda EU 2000i when it's cold out kind of like it is now it gives false readings so hopefully that's the case this driveway too is not a hundred percent level it is about one or two degrees off level so that could be the issue there is plenty of oil in there so let me try to level this out a little bit better and we'll try it again foreign [Music] foreign foreign [Music] the output on this machine is impressive from no load to full load things were virtually unchanged we're at 123 volts 60 hertz about 0.9 percent harmonic Distortion and the sine wave looked perfect the engine it does sound good it was blowing quite a bit of smoke though for a couple minutes until it burned off thankfully it did burn off so I think we'll be okay and the issue with the oil sensor sorted itself out whether it was just unhappy because it was slightly unlevel or potentially due to the cold you know whatever it is it seems to be fine now and this is doing exactly what it should so I hope this video helped someone thanks for watching

Channel: James Condon

Views: 492,573

Keywords: Alternator, Bad Spark Plug, Carb Clean, Carburetor, Dripping Fuel, Dripping Gas, EU2000i, EU20i, Fixed, Float Level, Flooded, Fouled Plug, Generator, Hertz, How To, How-To, Intake Seal, Inverter Generator, Leaking Gasoline, Leaking Petrol, Load Test, Low Oil Shutdown, Low Oil, Needle and Seat, Needle, Oil Change, Oil Fouled, RTV, Repair, Seat, Small Engine, Smoke at Startup, Smoking, Spark Test, Troubleshooting, Valve Stem Seal, Volts, Wet Plug, Wet Spark Plug, Will Not Start

Id: Su81Qu50DeI

Length: 45min 9sec (2709 seconds)

Published: Thu Mar 30 2023