20 Most Recent Yamaha Inverter Ef2000is 2000 Watt Generator - Page 2 Questions & Answers

The generator does not operate in accordance with the specified technical conditions, such as too high stator voltage, iron loss increases; if the load current is too large, the copper loss of the stator winding increases; if the frequency is too low, the cooling fan speed becomes slow, affecting the heat dissipation of generator; the power factor is too low, so that the rotor excitation current increases, resulting in the rotor heating. Check whether the indication of monitoring instrument is normal. If it is abnormal, necessary adjustment and treatment must be carried out to operate the generator in accordance with the specified technical conditions. Diesel generator set more supports: www.dieselgeneratortech.com

If you plan to purchase a new diesel generator set, please visit at https://starlightgenerator.en.made-in-china.com

Hi, maybe you can contact your supplier who supplies the generator to you. If you want to have diesel generator set in future, please visit at https://starlightgenerator.en.made-in-china.com

More supports, please see at www.dieselgeneratortech.com

Here is some reasons for reference: 1.After the diesel generator is stopped, the residual magnetism is often lost, because the material used for the magnetic pole of the exciter is close to the soft steel, and the residual magnetism is small. After the shutdown, when there is no current in the excitation winding, the magnetic field will disappear. 2.The magnetic pole of the diesel generator loses its magnetic properties. 3.Damage of excitation circuit components or circuit breakage, short circuit or grounding phenomena. 4.The exciter brush is not in good contact with the commutator and pressure of brush holder is insufficient. 5.Excitation winding wiring error, opposite polarity. 6.Stator winding and rotor winding of generator set open circuit. 7.Poor contact between diesel generator brush and slip ring, or insufficient brush pressure. 8.Diesel generator lead wire wiring is loose or switch contact is poor. 9.The fuse box is fused. 10.The "auto-manual-de-excitation" switch on the control panel is in the de-excitation position (automatic generator set has "auto-manual-de-excitation" switch). 11.The voltmeter is damaged. 12.Rotary rectifier module is damaged.

Start by replacing fuel. Completely drain the tank and carburetor fuel bowl. Do not use what fuel you may have, get 2 gallons of fresh fuel from gas station. If problem clears then likely water in fuel.

If still backfires with fresh fuel then likely an ignition issue. Failing ignition module or possibly a sheared flywheel key. Try reducing spark plug gap to .025" .

Mybe the problem is the frequency. Visit the website www.dieselgeneratortech.com to get more support.

There are several types of overload to consider: A. Catastrophic: something has gone very wrong. There may be a phase to phase short or two shorts to ground. This assumes you have an ungrounded system. With luck the main circuit breaker will open without destroying itself; B. Steady state over current: The load on the generator is greater than the rating on the circuit breaker. Time to parallel in another generatoror shed load; C. Transient over current: Suppose you were running two generators in parallel and one failed. The remaining machine may experience an over current condition that causes the breaker to trip. You can also have transient breaker trips upon activation of a large motor e.g., fire pump or bow thruster; D.Thermal: There is a big difference in sea water temperature as you travel the world. It is possible to have an overload caused by the diesel engine's inability to shed heat in the tropics. Continued operation could damage the diesel engine. Again, parallel in another generator or shed load.

Yes, try to bypass oil sensor to evaluate problem. Defective oil sensors cause a lot of problems.

Is it overloaded? That's the most common reason!

Check oil level and cooling air flow past the cylinder. Are there foreign material like leaves in the air intake?

Probably find that the carburetor jets are a bit clogged. Remove and soak in carburetor cleaner and then blow out with compressed air. Or alternately get a very fine drill set and clean, but be careful if choosing this method. Also clean the air filter. cheers

You may find the following documents helpful for troubleshooting and parts. I use www.arcolawn.com for parts but any reseller can assist you. This model does have an adjustment on the AVR behind the main panel but please review the below manuals before adjusting. Material Number Manual (PDF) 0H4099 EV C/PNL 410 XG PORTABLE 6.5KW 0H5145 WD SD 8.0KW XG ES 0J1587A EV XG8000ES 49ST 0J2873 EV XG8E 410CC 0J4651 MANUAL LOWES XG8000E 0J3335A WARRANTY STATEMENT EMSN E1 P3

voltage regulator not producing volts for the exciter windings of the alternator

https://www.manualslib.com/manual/770551/Yamaha-Mz175.html

10W-30 will be OK. Try not to overfill it. I use synthetic in all my small engines.

Since most generators are seldom used, gas left in the carburetor gunks up and stops up the passages. Take lots of pix of the assembly. Pull the carb, remove the bowl and spray carb cleaner in all the holes you see. Don't let it back spray into your eyes. Wear safety glasses. Some holes/orifices may need to have a soft wire passed thru them. Next time you store your generator, drain the gas, run the generator til all the gas is out of the carb. If you can get to the bowl w/o removing the carb, pull the bowl and spray the bowl and underside of the carb w/carb cleaner and reassemble.

50:1