Yamaha EF2400iS Generator - Page 5 - Fiberglass RV


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Old 09-18-2008, 11:07 PM   #57
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Sorry to hear about the Yamaha problem, but following this thread makes me glad I bought the Honda 2000 over the Yamaha 2400. I seriously considered both, before choosing the Honda, primarily due to the lighter weight, even knowing I was giving up a little extra power (or maybe not...like in your case).

A not so technical suggestion:

You might try pointing Yamaha to this thread, and pointing out that while there might be just a few contributors/advisors trying to help you determine the problem (apparently more than Yamaha), there are probably lots of us following the thread. I think they're getting a lot of free bad press in the RV community, and until they resolve the problem to your satisfaction, they're not doing themselves any favors. How hard a concept is that to understand?

Funny what a search on "Yamaha 2400 RV" or other combinations, will come up with.
Here's just one similar example:
http://www.rv.net/FORUM/index.cfm/fuseacti...sg/21531121.cfm

Maybe there was a bad batch of 2400's?

Maybe Yamaha isn't aware the Internet is used for more than hosting their site for folks to read all the good sales stuff?
They should also pay attention to the not so good stuff as too many people researching purchases and seeing less than glowing reports, can't be good for sales.

Or, it could be that Yamaha hasn't heard the well known saying..."If you like our product/service, tell others, if not, tell us".

Good Luck, I hope you and all the advisors sort out the problem - just too bad Yamaha won't step up to the plate.
Joe
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Old 09-20-2008, 01:51 AM   #58
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I'm just guessing here, but I would strongly suspect that this is a case of one particular generator being out on the end of the standard distribution curve and the problem wouldn't have been discovered if Mike wasn't using it at high altitudes.

Darwin, you are right that there are many things about grounding, esp when it comes to radio-frequency equipment, that have yet to be explained -- I'm not at all surprised to hear of two experts disagreeing on specifics!
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Old 09-20-2008, 12:29 PM   #59
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Yamaha is working on helping me work out the issues. There are no easy answers. How do I test a correction. I live at sea level.

One consideration is to exchange my 9 month old (unused) generator for the next size larger 3000 with remote/electric start (some money added). That really doesn't work for me. Where would I carry it and it weighs much, MUCH more.

I did get a new jet for running the generator at high altitudes. The Service Manager spent about an hour teaching me how to take apart the carburetor and replace with the smaller jet. Also, how to re-tune the idle for high altitudes.

I couldn't have found a better guy. The Yamaha store he is at is over an hour drive away, but well worth the drive. None of the Yamaha dealers in my county service or understand these generators. They send them out to a third, independent repair service.

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Old 09-20-2008, 10:35 PM   #60
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You might ask the guy if it's possible to borrow another generator like yours to take to altitude and test -- That would go a long way towards letting you both know if the problem is only your generator or the whole series.
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Old 09-20-2008, 10:41 PM   #61
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You might ask the guy if it's possible to borrow another generator like yours to take to altitude and test -- That would go a long way towards letting you both know if the problem is only your generator or the whole series.
I don't see how I could travel to a high enough altitude to test it. (I doubt they would lone one to me either.)
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Old 09-21-2008, 01:35 AM   #62
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Is it now working at your low altitude?
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Old 09-21-2008, 12:31 PM   #63
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Is it now working at your low altitude?
YEP, everything works fine here. Hard to make a case that it wasnít working when I needed it.
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Old 09-21-2008, 09:17 PM   #64
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Mike,
Since it works at sea level, I suspect the "altitude sickness" diagnosis is correct.
Have you received the high altitude jet yet? I'm curious to know the number designations of both the original and the new one. If there is another number between them, that might work at both sea level and at high altitude. Kind of a mid-range compromise.
The numbers usually reference number sequence drill bit sizes. The smallest orifices are smaller than a human hair.

Thanks for sharing the updates on this unfolding saga.
Kurt & Ann K.
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Old 09-21-2008, 09:25 PM   #65
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The new one I got is Part #1HX-1423E-30-00.

I donít know what the original part number is.
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Old 09-22-2008, 12:55 PM   #66
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Mike,
Most gas orifices have a one or two digit number stamped right into the (usually) brass or aluminum body. The number corresponds to a numbered drill bit size, #1 is .2280" and a #80 is .0135".
Maybe your new one is a #30.
My experience has been with gas furnaces and ranges using natural gas or propane. I'm curious about internal combustion engines using those fuels, so your experiences are of interest.
Thanks again for sharing.

Nice picture of your rig! Are you trying to maintain a schedule while you are traveling? Earlier this year Ann and I were on the road for 6 weeks and added 3700 miles to our rig. The only date on the calendar was a family wedding near home on the same Saturday as Bandon. Having 2 months of freedom was an entirely new experience for us. Ultimately, the high cost of fuel and the Calif. fires changed our route somewhat but we had a great time.

Hope you two continue to contribute about your travels!
Kurt & Ann K.

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Old 09-22-2008, 02:15 PM   #67
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Some how I seemed to have confused people. I am not retired yet. This trip was a 2+ week vacation. It gave us a chance to really test our equipment.

I have a Yamaha guy that has taken an interest in my generator problems. He sent to me a shop chart showing what jets the current generators use at different altitudes for these gasoline inverter generators.

Here is what they are:

Yamaha's High Altitude Jetting Chart for EF2400iS

Altitude - Jet for the EF2400iS

Sea Level - 1HX-1423E-34-00 (standard)

6000' - 1HX-1423E-67-00

9000' - 1HX-1423E-31-00

12000' - 1HX-1423E-66-00

(note: there is a 3% loss in horse power per 1000' elevation)
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Old 01-25-2009, 01:29 AM   #68
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Some thing is wrong somewhere ! I have had my 2400 for two years (heavy usage ) .It will run the AC/micro and all the lights at one time ,no problem .

We have had our EF2400is for two years also, and it runs A/C and everything else in our RV with no problem.
We have no complaints with the Yamaha
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