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Why do my lights flicker when running my generator it's a Yamaha y g 2800i

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Predator 3200/4000 generator makes lights flicker won't run microwave adjusted carburetor worked fine turned it off started it the next day lights flickered again not enought power to run microwave.

take look at the governor ( it situated very close to the carburettor with some light springs attached to it ) it an automatic throttle device which open the throttle when there more demand of electric power

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The flickering is caused by fluctuating frequency due to engine speed, thes egenerators really are not recommened for powering home systems. It shows up in flourescents when the freq dips around 57HZ and 63HZ

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Yamaha dt 125 re water temp sensor light flickers has if theres a fault but bike dos not over heat it runs fine

Hi, Www_daniel_k if your water temperature light comes on or flickers and the engine does not seem to be overheating the usual suspects are:
1. Faulty temperature sensor.
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3. Chaffed or pinched wire in the bulb circuit making contact with a power wire.
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We have a Valsi 5500 watt generator that isn't putting enough voltage out to run everything in out small travel trailer. It runs the lights but doesnt push out enough voltage to carry the A/C, microwave,...

How long have you had this generator?
Has the generator worked on all of these loads before?
Model 5500 is a 5500 Watt generator which could easily be 5500 watts (Peak) and not continuous.

Your AC is an inductive load.
Your lights are resistive loads

An inductive load can cause issues when starting due to an increased current demand at start up that some generators cringe under. Do the lights flicker or are they stable? I'd say your diodes on your stator are working if you have light stability but you haven't provided nearly enough information for a detailed solution.

I'm sure you have enough voltage but you aren't getting enough current to run specific loads. How many watts is your AC? How many watts for your microwave? Both of these units demand a great deal of energy to run and when you place too much demand on your generator, it will choke it out and eventually, will cause damage to the generator. You may consider getting a beefier generator with a greater amount of wattage output.

Seeing these specs online and noting what you are trying to run, you have an undersized generator and need to get one that can produce a greater amount of running wattage (as well as peak wattage).

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2 Answers

My generator works but the lights in my house pulse. Any ideas?

You can think of AC power as a sine wave. It goes from 0 to its peak, back to zero, to its negative peak, and back to zero. This is called a "cycle". Your generator puts out a certain voltage (probably 120/240) at a certain "frequency" (probably 50 or 60 HZ). 60 HZ (hertz) means that 60 "cycles" happen each second. Essentially, in one second, voltage falls to zero 120 times. So all lights flicker, even when connected to the utility (just so fast that your eyes can't pick it up).

With that said, how evident is the flickering? Are these lights incandescent, flourescent, HID? How many watts (or kilowatts) is the generator rated to output; how much power is being drawn?

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Can the ecu memory be flashed on a yamaha EF2800iportable generator? My 2800i will start and run for about 90 seconds and then shuts down. Carb is fine. Two issues: 1. It is not generating...

It sounds like its running on the gas in the carburetor and not the gas filling back up to run more, I bet you have a gas supply problem to the carburetor! Try Babbitts Yamaha Partshouse online...

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Hi, Tom your ECM has generated a fault code for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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