Based on the advice of PT AHM (Astra honda motor), this 150cc sport motorbike must return to the nearest dealer for service every time it has covered a distance of 4000 km.
The most important thing is to change the engine oil, if the motor is always used every day, it is better to change the oil faster because it is likely that the oil will run out quickly.
Oil substitution can use oil from AHM oil 1 or other brand oils that have SEA 10W-30 in 1000ml or one liter size.
When the oil is changed, also pay attention to the oil filter,
Don't forget to clean so that the gram or dirt that sticks is removed, so that when it is filled with new oil it is filtered more optimally.
The air filter must also be cleaned every time it has traveled a distance of 12,000 km, or it could be every time the engine oil is changed, because so that the air filter there is no dirt attached so that air can pass maximally.
How to clean it by spraying with air compressor.
And don't forget to also make sure the spark plug is in good health and prime, then check the spark plug gap, the correct spark plug gap size is 0.70 to 0.80mm and must be replaced if the motor is 1000km.
Do not wait for the spark plug to die, because it is very harmless, can reduce your motor power too, and can cause incomplete combustion which will cause a buildup of Carbon in the combustion chamber.
Also check the radiator coolant section every time it reaches a multiple of 9,000km, so that the engine temperature is maintained and the engine does not overheat, if the radiator water is already at its lowest point or Low, add new water immediately.
Drain every two years, or it can be faster if the motor often runs at high speed and the environmental conditions are quite hot.
And once every 2 years the radiator water must be drained, or it can be faster if the motor is used for days
The injection system, make sure it is in normal and prime condition by using a tool or scanner called HiDS-(Injection Diagnostic Tools.)
Which functions as a check for damage starting from the voltage of all sensors, engine idle speed, fuel spray, battery voltage and engine temperature.
For this motor set Idle rotation 1,400-1,500 RPM.
For the chassis, if it's 3 years old, don't forget to lubricate or apply oil to the moving components, starting from the axle, swing arm axle, rear suspension Prolink and others.
Also check the condition of the brake pads, air pressure and chain tension.