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#2284330 - 06/10/11 07:40 AM Inverter generators: Honda EU2000i vs Yam EF2000is
Cujet Offline


Registered: 02/15/03
Posts: 7139
Loc: Jupiter, Florida
I am in the market for a small portable generator for various uses. I have plenty of larger gensets for "real" projects and emergency use.

The Honda 2000 is interesting and generally gets good reviews. It's a 99cc engine with aluminum bore (probably Nikasil) and a single lobe plastic overhead camshaft, with timing belt. It also has a plastic governor gear and splasher assembly. These have been known to fail after many, many hours. There are a few reports of connecting rod stretching too.

The Yamaha 2000 is fairly new. It is slightly smaller, at 79cc's. I "believe" it's conventional construction, with a real metal camshaft, 2 lobes and a cast iron bore.

The Honda has a reputation of long life, with some operators getting 10,000 hours or more. However, there are questions about "hot and high" operation where oil temps skyrocket and plastic parts fail. There are a number of negative reviews. The Yamaha is too new to have many negative reviews.

Honda, Yamaha, or, should I go with a tiny conventional genset? One that is easily repaired and contains no electronics?

Both are quiet, efficient and will make 1800watts without trouble. With the Honda capable of running in "overload" at 2000 watts for 30 mins. The Yamaha will "overload" and shut off the power after about 20 seconds at 2000 watts. Just a difference in the protection circuitry I guess.

Thanks!


Edited by Cujet (06/10/11 07:44 AM)
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#2284338 - 06/10/11 07:51 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
IndyIan Offline


Registered: 09/23/08
Posts: 9090
Loc: Ontario, Canada
I guess if you don't need their low noise output or their partial load fuel efficiency then there's not really a reason to get an inverter generator.
I like my 7 year old EF3000iSE that ran on a few litres of gas the last couple days on my front porch. If I needed a smaller one I'd get the yamaha base on it traditional construction.
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#2284380 - 06/10/11 08:41 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
Ausfahrt Offline


Registered: 04/07/08
Posts: 1374
Loc: Fl & Vt
I can't comment on the Yamaha but I've had my Honda EU200i for over two years now and I am very happy with it.

I have a small barn that does not have power so I use the Honda to provide power to woodworking tools, lights, and a small window shaker (a/c unit) and it has performed flawlessly.

Mine has accumulated approximately 250-300 hours of use and I change the Mobil 1 15w-20 twice a year.

Whatever you decide to do, check out the prices here before you buy:
linky

BTW...I love your old Lister vids. Great stuff. cheers
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#2284403 - 06/10/11 09:05 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
IanInCalgary Offline


Registered: 02/22/11
Posts: 42
Loc: Alberta
It is unlikely the Yamaha is conventional construction. The use of plastic single-lobe camshafts and aluminum bore are ways to keep the weight and cost down.

IndyIan hit the nail on the head - an inverter style generator will be quieter and more fuel efficient than a constant speed generator.

I use a Honda 1000 inverter generator at a remote location where getting equipment and materials is a logistical headache. I used to use a Honda 350 (2-stroke) which was ideal for my needs. However, my wife likes to take her laptop and have the convenience of turning on lights whenever she feels the urge so the 1000 is better for that application. The 1000 is considerably oversized for the load and uses considerably more fuel than the 350.

Ian

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#2284438 - 06/10/11 09:51 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
951Indy Offline


Registered: 10/09/09
Posts: 183
Loc: Indy
Either of the two are probably good choices, but if you ever might cut it close on watts (13.5BTU RV AC), the yamaha 2400 is even better. Its a little more $$, and heavier, but sometimes a 2000 just won't do it, and the 2400 will. It won't waste fuel at 1500 watts, but won't make you start a generator collection when you need 2200.

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#2284503 - 06/10/11 11:00 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
440Magnum Offline


Registered: 02/01/09
Posts: 8754
Loc: Texas
We've got 2 EU2000i's at work, the oldest being about 6 years now. They see infrequent use, but when they do get used its heavy and hard for a few days in a row and its usually hot, dusty, dirty field work. No glitches yet, and they're QUIET.

We also tried the EU1000, but weren't as impressed. Yes, its smaller and a good bit lighter lighter, but its actually louder (or at least more annoying since its higher-pitched).

Can't comment on the Yamaha, but I'd bet its every bit as good as the Honda, if not better.
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#2284550 - 06/10/11 11:44 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
car54 Offline


Registered: 06/15/05
Posts: 242
Loc: Wdbg, VA
I plan on purchasing one of these two units this year. My boat doesnt have a generator and I want AC while rafting up. I was gonna go for the yamaha just because I like the blue color, and to try something new. I have a honda EB3000c that has thousands and thousands of hours on it, and I dont mind giving the yamaha a shot to see if it turns out to be as reliable.

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#2284596 - 06/10/11 12:39 PM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: 951Indy]
Jim 5 Offline


Registered: 05/25/05
Posts: 4009
Loc: Calgary Canada
Originally Posted By: 951Indy
Either of the two are probably good choices, but if you ever might cut it close on watts (13.5BTU RV AC), the yamaha 2400 is even better. Its a little more $$, and heavier, but sometimes a 2000 just won't do it, and the 2400 will. It won't waste fuel at 1500 watts, but won't make you start a generator collection when you need 2200.


I have the Yamaha ef2400i and I can't be more pleased with it. I have run my RV air conditioner from it for days at a time. It is very quiet. At the time I bought it, it was the smallest generator that could run an RV air conditioner. At the time I bought it, the closest Honda equivalent was the Honda eu3000is.

My FIL has this one and it feels like it weighs twice as much as the Yamaha, barely liftable to the tailgate of a 3/4 ton truck so I bought the Yamaha. That big eu3000is is a really nice unit, beautifully made and quiet, but not great if you need to move it around alot.

But Honda now is offering the eu3000i Handy, which is significantly lighter than the eu3000is and can run an RV AC. They brought this out to compete with the Yamaha ef2400i. I'd definitely now consider the Honda "Handy" as it has wheels built in, which would really make it "handy". Either would be really good though.

ps. I run Esso XD-3 0w-30 HDEO in my yamaha. I thought that was relevant, this being BITOG.
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#2284758 - 06/10/11 03:51 PM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
01rangerxl Offline


Registered: 04/08/06
Posts: 9246
Loc: Birmingham, AL
I don't have a lot of experience with either of these particular models, but I wouldn't let the plastic parts in the Honda worry you too much. Honda has been using plastic camshafts for years and they just don't seem to be very problematic at all. With proper maintenance and use, the engine should never get hot enough to damage the camshaft. If you're reading reviews where the camshaft melted, it means the engine was overheating for one reason or another, and overheating is generally caused by operator error or neglect.

Finding well stocked Honda dealers and shops is also easy. You are unlikely to run into parts availability issues with them (though it does occasionally happen).

Yamaha also seems to build pretty reliable engines, but their dealer and service provider network is not as large as Honda's. If you need to repair anything, it may be a little more difficult and take a little longer to get the parts compared to Honda.

I think either one will work fine as long as it's not overworked.
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#2284839 - 06/10/11 05:13 PM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
Cujet Offline


Registered: 02/15/03
Posts: 7139
Loc: Jupiter, Florida
I can't choose a larger unit, like the Yamaha 2400. The genset must fit in the tiny baggage compartment of my Cessna 177RG. The 2000's are just the right size.

Funny that the poster above likes the blue color! I suppose, they really are that similar.

I'll try to find out for sure about the conventional construction on the Yamaha.
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#2284949 - 06/10/11 07:34 PM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
edhackett Offline


Registered: 06/09/03
Posts: 1925
Loc: Sequim, WA
The Honda site lists the EU2000i as having the GX100 engine. According to Honda, this is an iron bore, metal cam, commercial engine.

When I was in the market for a 3000 watt inverter I eliminated the Yamaha early because of its smaller engine. The Yamaha was 5.5 hp compared to 6.5 for Honda and 7.0 for Subaru/Robin. I often operate at 5K+ altitude. The Yamaha would be down to 4.4 hp and the Subaru would be at the 5.5 the Yamaha starts at at 6K feet.

Subaru offers a compact model, but it's only 1700/1400 watts, a size down. If that's enough, give it a look. Otherwise, I'd go with the larger engined, proven Honda.

Ed
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#2285436 - 06/11/11 12:11 PM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
h8snow Offline


Registered: 12/27/06
Posts: 15
Loc: alaska
I have a EU2000 ,EU1000 and also two EX350 2 cycle generators. i am sure that either the Yamaha or Hondas will work great for you. The only problem i have had is with the Eu2000 it will freeze up if left running at below zero temps. The crank case vent ices up the carb. Not sure if Yamaha has this problem.

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#2286079 - 06/12/11 08:22 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
Cujet Offline


Registered: 02/15/03
Posts: 7139
Loc: Jupiter, Florida
That's interesting. Carb ice is a problem in aircraft, but not so much with small engines here in South Florida.

However, I do plan on using this in TN, where the winter temps drop into the 20's. I'd hate to have problems overnight, when I really need this thing running my cabin.
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#2286767 - 06/13/11 08:25 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: Cujet]
raffy Offline


Registered: 09/21/09
Posts: 242
Loc: AL
As edhackett said, the Honda EU2000i uses the GX100 engine, which is designed for day-in, day-out rugged commercial use. In other words, it will last a long time if properly maintained! I have read on other boards that people have run them for 12000 hours and they are still going strong. Of course, that means careful maintenance (oil changes every 100 hours or more often, air filter changes, etc.). The GX100 engine, according to the Honda weblink below, apparently uses a metal gear driven camshaft, not a plastic belt driven one. I would personally stay away from any Honda engines that have critical engine components made of plastic if they are going to see heavy use. They just won't last as long as those that have metallic parts. For lawn mowers and other occasional use items, they're fine, but I'd stay away from them if you're looking for thousands of hours of reliable service without overhauls. Case in point: a friend of mine got a brand new economy Honda generator to use in the recent tornado-induced power outage here in north AL. The plastic cam failed withn a few hours of use! Fortunately, he was able to find a replacement cam and repair it.

All this is to say that the EU2000i is NOT one of those engines. It sounds like you'll be using this at your cabin for many hours, so get a proven winner in the 2000i. The Honda and the Yamaha seem to be roughly the same price, so I would recommend getting the Honda as it has a more proven track record. Wise and Mayberry have good prices on these; check them out!

Since this is BITOG, I use standard (not Signature series) Amsoil 5W-30 in my EU-2000i.

http://engines.honda.com/models/model-detail/gx100
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#2286781 - 06/13/11 08:56 AM Re: Inverter generators: Honda EU2000i vs Yam EF2000is [Re: raffy]
raffy Offline


Registered: 09/21/09
Posts: 242
Loc: AL
Well folks, I need to correct some of my post above. I dug around and found the parts catalog for the GX100 engine and, according to it, this engine uses a timing belt and the cam gear and shaft don't look like what is shown on the Honda engine website. The parts catalog doesn't say what material the cam gear is made of it, but looking at it it could well be plastic. Any Honda mechanics on here who are familiar with this engine, please let us know for sure! Here's the link to the GX100 parts catalog. The cam parts are in section E9.

http://cssportal.css-club.net/honda/PowerProducts/contents/20091202162641_7376.pdf
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