0:00
I got a junk engine generator. The engine starts, but the number of revolutions does not increase and it is not generating electricity.

1:45
There is a fuel filter at the bottom of the fuel tank.

2:14
The inverter unit performs various controls and is the most important component.
There is no problem with the appearance, so we will proceed with the repair. The price of genuine parts is about 50,000 yen.

2:51
Remove the rotor. If you grab the outside, it will cause the rotor to bend, so use a special tool to grab the inside and remove it correctly.

4:54
The valve stem seal is torn.
The cause of the engine malfunction is considered to be poor fuel condition due to the internal pressure of the engine being sucked from the valve stem when the combustion chamber takes in air.

5:54
Create a new screw hole using a tool called a recoil helisert.
Make a screw hole slightly larger than M6 and insert the screw hole of M6.

8:04
Press the oil seal in the proper position, and if it is inserted at an angle, it may cause oil leakage.

8:31
Install the oil ring and side rails about 2 cm apart.

9:15
There is a mark on the top surface of the top ring and the second ring, and the thickness is different.
The joints of each ring are installed with a 120 degree offset so that the compression in the combustion chamber does not escape.

10:56
Align compression top dead center. If installed improperly, it may cause damage such as engine malfunction, inability to start, and contact between the valve and piston.

11:52
Valve clearance must be provided to prevent the valve from opening due to thermal expansion.
The EX side is larger than the IN side because the temperature rises due to the exhaust gas.

19:56
The standard value is 3000 / min at low speed and 4300 / min at high speed, so it is within the standard value range.

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EU16i
EU2000i
#generator