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Questions and Answers About Generators

We would really like to get to know you better by answering your questions and concerns about the various types of generators.

Whether you are new to using generators as a source of back up power or you have been using one for years, we welcome any questions or comments.

If there is any information you would like to see included on this website please let us know.

All questions and answers will be published below. Thank you.





Thank you for your questions, as I am a publisher I will contact generator experts to answer your questions.

Any visitors or generator retailers, repair services, manufacturers who wish to answer questions feel free to use the form above. I will publish your answer below the question and give you credit as the author, and if you have a generator site, a link back to your site.

1] I have a Yamaha EF2800i the problem is it cranks, but it doesn't start. What could be the problem?

2] What is the decibel rating on the Black Max model BM10700 7000 watt portable generator? Also, what are the dimensions for this generator?

3] I have a Coleman powermate6250w standby gen set that does not make power I replaced capacitor checked diodes tested good. I would like to know how to test armature windings and field windings this generator has had very little run time and looks like new I cannot physically see anything wrong with windings and no shorting to ground thought maybe an open in windings

4] I am looking for a control unit assy for a EU6500IS Honda generator. Part number 34110-Z11-A31

5] I have a Mitsubishi mge 6700 portable generator. The generator has lost its magnetism, how do I restore the magnetism

6] My Honda portable generator only puts out partial amperage, I took it apart and on the back end of the armature their are 2 small cylindrical pieces that resemble diodes, one of them looks burnt and will not allow a reading on my ohm meter the other one looks like it has been warm but does show a reading on my ohm meter when i touch the leads to the wires that come from each end of the diode looking thing! Are these to parts in fact diodes? How should the read on my ohm meter? And since I cant see any numbers or letters on either of them what would you recommend that i replace them with? I do not know how many watts the generator is supposed to

7] I have a Generac 3.4 KW Model #00941-1 that is putting out 180 volts instead or the normal 120 volt, the AC breakers did not blow as a result it burnt up the three way circuit card that controls the frig. in my RV. Whats the problem?

8] What portion of a Office Building with garage, dispatch center should be backed up by a generator? Provide separate wiring to those items backed up? Use of automatic start-up upon power failure?
Architect trying to specifying an Emergency Response Ambulance Facility.

9] I'm and RV technician in south east NM. I have a customer with a Generac GN 480 series, Q55G, model 09592-3
It has been run faithfully once a month as he is hooked up to shore power most of the time.
The genset engine runs fine but produces no AC power.
I tested both sides of the circuit breakers and found no AC voltage. The wiring schematic for this model shows a third circuit breaker just off the circuit board, but I'm unable to find it.
Is this the board or is the stator shot.

10] Used Black Max 4000 watt Generator is there any recalls?

11] My husband bought a used gas powered generator when he starts it, he has to use the choke, even when its warm, the 110 works fine, but when he switches to 220 and plugs something in, it shuts off right away, what should he do?

12] Our son has a Coleman lighting generator and it will produce 130 volts,but will not run any tools. It is small and compact 2cycle.

13] I have a GPP 6000 generator. I changed the rpm. When I run my sump pump on the generator it runs slower then if connected to a home power source. Will I change the generator output buy adjusting the motor rpm? If yes what is the right setting and how can I adjust it?

14] Looking for a standby Generator for a Physical therapy (clinic) of an average area around 3000 S.F. Equipment includes: Computers about 5 to 6, Jacuzzi tub (120 VAC_15 AMP_ 60HZ) and 6 exercise equipments with regular power, small Kitchen with Fridge & Microwave oven.
What's the best type, size and capacity of generator should fit?
Thank you

15] Kohler Generator starts but as soon as you release the start button it shuts down. The oil is full and the gas is full. I had to replace the coach batteries and now this happened. Everything else in the coach works. HELP!!!!

16] I have a GPP 6000 generator. I changed the rpm. When I run my sump pump on the generator it runs slower then if connected to a home power source. Will I change the generator output buy adjusting the motor rpm? If yes what is the right setting and how can I adjust it?

17] Does the Black max have a conversion kit to natural gas.

18] Just bought a BLACK MAX generator. It has what looks like a " no load idle solenoid " on it. It has a wiring plug on it but nothing to plug it into. Is there a kit I have to get to make this work?

19] Will A 4.0 Onan BFA-1R/16004C engine bolt up to and work on a 4.5 Onan BGDFB - spec M engine.

20] Will a standby generator work if there is a blackout throughout the state that one lives in?

21] Can I take a 5500 watt gas unit and put it in a boat.

22] We are going camping and will need a generator for 2 CPap machines and probably a light, and radio. What size would we need?

23] Poulan Pro 6000 it's working but isn't putting any voltage out bought used.

24] Kipor KDE 5000E will crank but will not start-- do not know how to check low oil shutdown, injector pump no fuel out of high pressure line. It has to be simple. Thanks

25] My 950 portable generator starts but does not give light.

26] How can I service my 950 portable generator carburetor.

27] skolko litrov masla v EX 650 HONDA

28] How many amps can you get out of a 8000 watt portable generator.

29] I have a UST 2300W portable generator. (Chinese copy of a Honda). Runs great. I hook it up to my travel trailer ac house power cord to charge the battery. The draw is around 400 watts. Checking the ac outlets in the trailer, the frequency is only 45 - 50. The voltage is around 115. With no load on the generator, the frequency is right around 60 and voltage at 120. With trailer hooked to house current, outlets in trailer check normal. What would cause the frequency to drop that much with a light load

30] I have a Colman Powermate 5000 watt generator. Bought used. Starts and runs fine. I have applied a volt meter to the genset and found out that it is producing 135/270 with not load. Applied a load and it came down to 127volts. Did not apply to 240 side. Is this normal? How high is to high. Can I adjust the governer to reduce the voltage

31] My 5500 kw diesel generator is only putting out 100 volts on 110v. and 190volts on 220v. Is there something simple I can try for a repair.

32] What oil do I put into my Generac EC-2100 model, and how do I know where and what the oil level is. The generator has stopping working.

33] Just acquired a Kipor kde5000 diesel generator - the manual recommends a 5 minute warm-up period "running it at low speed and no load" by using the governor setting. Well, as far as I can tell, the governor is either set in the run position (approx 3000 rpms), or in the off/stop position. There are no other settings or positions unless you want to manually hold the governor somewhere in the middle for 5 minutes and warm up the engine at a lower rpm. Am I missing something here.

34] When generator (Honda EM5000SX) is running on auto at 120 volts, the voltage drops down to about 90 volts when I plug in accessories like drill, lights, etc. The auto throttle solenoid seems to work fine and I am suspecting the Auto throttle unit. Any thoughts. Thanx.

35] схема обмоток статора генератора Хонда ех650

36] I have a Troybilt 3550. it was back fed 110 but was not running. Now it does not make power. It does make 12 volts AC coming into the brushes but nothing coming out of the bridge rectifier. Is this the right volts? How can you tell if the transformer is good?

37] What are the possible causes of a gas generator that starts but won't keep going?

38] What is the noise level of the Black max 7000 generator?

39] What are the advantages of brushless alternator over slip ring types?

40] Can you tell me why my neighbors generator acts like it is running out of cranking power if it does not start right away. It has a new battery, and when you stop cranking and try again it will crank like it has power for about 4 seconds then acts like its running down. Its a Generac on his horse trailer.

41] My generator is not getting any fuel. What should I look for? It is in my RV. It is an Onan 4000.

42] Where is the LOL-LOP switch located on a model 3KVC-83B Onan.

43] I am planning on generating power using Hydrogen as my major fuel source. I will be on grid and keep the generator running at a lower RPM, for lengthy periods. What generator should I be looking for to get me started? I will be in the tropics and self-supporting for power, hopefully.

44] I have a Honda 5KW. Engine starts, runs, no output, no meter movement, no green light. Unit worked on last use.

45] I have a 4400 Generac generator the generator part is no good could you please tell me where I could get this part.

46] My generator has been in the shop 2x and still it pops and back fires any recommendations. Its a 10 HP BS Coleman 5.5KW they cleaned the car and replaced the spark plug also a ne gas filter.

47] How much wattage do I need to power a full size refrigerator/freezer and a small space heater. Can you recommend a model that would fit these requirements.

48] My KDE 6700 is running at 78v and it should be at 120 I have 48 hz.

49] My generator is running but its not producing output.

50] I converted my gas generator to propane about a week ago and the unit ran just fine on both propane and gas. Today I tried to start on propane and it would only start and then stall. Tried it on gas and it started and kept running, but the RPM would fluctuate. Is it an air leak.

51] I have a Bolton Pro DFD6500H, the quiet idler does not work can anyone help? It will not idle down when not under load.

52] My generator engine will fire for a few brief seconds, but will not start up and run. It is a pull start Coleman with a Subaru motor. I replaced spark plug, gas, and took the carburetor apart and cleaned with gum out spray. Checked the oil, it is full. I cleaned the magnet on the flywheel, and the coil pick up. What am I missing?

53] Where can I get a "Kipor TC 2000" serviced in the London or South England area.

54] I have a Troy-Bilt 5550, it runs fine, but I got no power coming out, what should I do.

55] I have Mitsubishi MGE 6700 5.7 KVA generator. The generator is not producing voltage what could it be.

56] Just purchased a Rockworth generator 3.2 kv non runner, managed to get it running alas it won't produce any power I have a friend who is an electrician who said it will be the slip ring it produces 12v ac which exits the main winding, where is the slip ring.

57] I am not getting fuel to the fuel bowl, I have good flow from the gas tank, this problem is on a Briggs & Stratton 5250.

58] On what rpm does EF2500 run.

59] Need to know the wiring method for a transfer switch on a 20KW Generac generator. What does the wiring diagram look like for a whole house transfer. Does it interrupt the entrance cable.

60] Need to know the wiring method for a transfer switch on a 20KW Generac generator
What does the wiring diagram look like for a whole house transfer.
Does it interrupt the entrance cable.

61] Why are generators rated in KVA. How do I choose my generator in the sense of load.

62] My Yamaha 2800i generator has started surging when switched to the econo mode. I have installed a new spark plug, new fuel, and cleaned the spark arrestor.

63] Who services the generator for the black Max Honda motor, Honda says they do not service it.

64] My champion 1200 watt generator suddenly only puts out 10 volts, have checked all connections.

65] What besides the voltage regulator will cause no 120 AC to the motor home. Have replaced the voltage regulator but still have no 120 AC to the motor home. The generator runs good but will not produce the voltage. Onan Marquis 7000 Generator.

66] My neighbor and I want to share a portable generator to run a sump pump, frig, a light and maybe another small electric device for each house. What are the major features we should look for besides enough wattage and proper hookup.

67] My Kipor generator KGE 3500 tc will idle all day producing 120volts, but, trips the overload when any item is plugged in, restart and the green light indicates o. k., and the same process is repeated over and over.

68] Does the 13 hp Honda engine in a black max generator have cast iron cylinder sleeves or is it an all aluminum block.

69] Do you have a CDI ignition for the Honda EM 4000 generator. If so how much is it.

70] I need to know the solution to prevent a light flickering in portable generators. The Solutions to avoid it.

71] After using my generator for about an hour. I find a puddle of oil under it. What could have happened.

72] Have a EM3500S generator, have not been used for 3-4 yrs. Changed oil, spark plug, drained old gas and started with new gas. Engine runs fine. But no power at volt meter or outlets. no 120 or 220. manually rev up to make rpm's where high enough. metered circuit breaker (tested good). The generator worked before I put it away. Any thoughts.

73] Hello I have a Champion 5500 generator gas was running great now wont start back fires threw carb changed ignition coil as told to by tech did not help any advice on how to fix? also changed oil, sparkplug and filter

74] Can I use a 14/2 gauge wire to hook up a 12 volt battery to a generator.

75] I have a need for a propane generator, I see Yamaha offers the ef-series, how many pounds of propane per hour of operation for let's say the 4000 watt?
I hear that there are lubrication issues when using propane, should I be concerned?
I am sold on Honda, but open to other quality brands...

76] I have ex650 Honda gen & the 249 & 12v is not working can I buy Generic parts or s/h regulator.

77] Hi I have a Kipor silent diesel generator , it starts fine but with no electrical output. no warnings are shown and the battery is still charging.

78] Our Generac Electric Start Generator 7550 EXL Power-Surge TM Surge....Model # 01470 Serial # 1010056365 runs good but will not put out any AC current.

79] Engine runs fine but I get no AC. I reset both breakers but still no AC output. This is a Briggs Elite series 5550W 10 HP engine.

80] Hello I have an Generac GN480 model#09592-3 with electrical problems. My father in-law hooked up the generator from his motor home to his travel trailer and blew the Voltage Regulator, I believe. The travel trailer has a 50 amp capability and I believe the motor home is only 30amp, but not quite sure.
Anyway, I got to the voltage regulator (VR) and one of the connectors from the VR had burned out. The red light was "on" the VR. I ordered another VR and installed it, but I am still not getting anything back inside motor home.....any ideas or suggestion would be greatly appreciated.

81] I am considering a Kaito 3500 diesel generator. I can find no reviews for this one. Do you have any info on it?

82] Is the Black Max7000 Generator one of the best and how much does the cc matter and does this gen. have enough. It will probably be used to its max pretty frequently.

83] I have a Nissan GX4000 portable generator. S/N 075715. Purchased in 1988 -1989 following Hurricane Hugo. What info is available?

84] I have a 1200watt portable generator. The output voltage is low(115volts) and the voltage fluctuates. The cycles are OK. This is a Power G generator. Is there a replacement regulator for this unit. Could there be something else causing this problem?

85] I have a Blackmax 6550 with a Subaru Engine that I purchased three years ago at Sams Club. I'm trying to find out how many decibels does this generator operate at.

86] I have a Kipor gs2600 inverter generator and would like to know why it would be running at full revs even when you flick the switch from off to on, it makes the slightest bit of difference but not much. I have replaced the steppor motor but that made no difference, hopefully you can help,thanks.

87] I have a Kipor GS2600 Digital Inverter Seies 2 Generator.
Is this a Modified sine wave OR pur sign wave?
Is it a TI signmaster OR PC Campermate?

88] We have a Blackmax 5250 generator. It runs for about 3 minutes and shut off. It will start back up. Can you give me any idea of what the problem could be? It has gas and oil.

89] I have a Kohler 12RES model, It is a single phase, 60 Hz, 120/240 VAC. The problem is that it does not generate 240 VAC. I do get 120 VAC but not the 240 volts. I hope you can help me with this problem. Thanks you for your time.

90] I am looking to buy a All Power APG3009C generator. I have been told I wouldn't be happy with it. I'm just looking for information.

91] What is the difference between a Yamaha generator ef2800 and yg2800 ?

92] I have a Honda eb 5000 generator that puts out only 3 volts. what could be problem. the vin is ea73150973 model b50 4046.

93] What are the possible problem of the generator set when it overheated. And when we started it again the water level in the radiator of the generator dry fast

94] We have an old generator in the construction site. the problem is that the generator is working but does not generate current. All the gauges are zero indicating no volts and no amps is being generated. what can be problem of our old genset.

95] I have a 36 sedan bridge sea ray, 2007. The generator will not start. there is nothing on the display as if there is no power getting to the unit at all. when you push the remote starter on the display, or go directly to the generator and try to override and start, nothing. could this be a bad battery or panel? help...i am a new boat owner and a woman without much mechanical experience! thank you,

96] I have a Generac generator model no 09592-3 in my motor home. It is making a very loud noise from the end of the exhaust tailpipe as if there is no muffler on the engine. Do they have a muffler and if so where is it? The curved tail pipe appears to bolt onto a pipe beneath the motor at one end. There does not appear to be enough room for a muffler to exist between the bottom of the motor and the support panel beneath the motor. If this model is not fitted with a muffler and spark arrestor how do I silence the motor? Thank you for your help.

97] If injector dribbles, is there any chance of engine overspeeding?

98] Generator was running fine, cut it off then tried to start it again and it will not crank. Checked the spark plug and it is not firing. I think it may be the coil but I'm not sure.

99] Our 600 KVA diesel generator fails two times in the alternator side: Engine: Parkings, Brand FG Wilson.
1st time Diode and fuse burn out.
2nd time diode and fuse burn out and found alternator exciter coil damage.
Still now yesterday we found main breaker of generator fallen and it has been done before also.
What is the cause of this type of failure?

100] My Onan is A NH 6.5. It was running fine for about an hour when all of a sudden it started to hunt under load. I mean the govenor would take the throttle wide open, the voltage would drop to below 110v's and at times would backfire and shutdown. But it would start right back up, run fine under no load but when it's placed under load it would do it again. We've checked every thing to no avail, except we haven't checked the points but did change the condenser because the wire broke off. It acts like it's starving for fuel but any attempt to bypass the carb using a priming method doesn't work. It had run for approximately 6 hours before this started but then we gave up and used a portable unit for the next 3 says.

101] How do I find a gas tank for my 2005 Power Pro 3500

102] What generator could supply enough power to run a 36000 btu air conditioner?

103] I have a Honda ew 171 runs good welder or recepticals won't work . What do I need to check

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