Masport UJ102, Owner'S Manual

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6.3 | REGULAR CHECKS, MAINTENANCE AND ADJUSTMENT
6.3.1 BATTERY
Correct and regular maintenance of the battery will extend its lifespan. Therefore regularly check its condition according to the
manual supplied by the battery’s manufacturer.

Keep the battery contacts clean. If dirt accumulates on them, or they are rusty, clean them according to the recommendations of
the battery’s manufacturer. Interruption of the circuit caused by the oxidation of the contacts may lead to the malfunction of the
recharging function of the engine!

Regularly check the condition of the electrolyte. The level must be in the range MIN - MAX. In the event of
filling up the electrolyte, use only distilled water.

A flat battery needs to be recharged as soon as possible, otherwise its cells may be irreparably damaged.

It is always necessary to charge the battery before:
- first use
- when not planning on using it for a long time
- before starting up after a longer break

If it is necessary to replace the battery, always use a battery of the same size and type.
Further details about checking and maintaining batteries are included in a separate user’s manual supplied by the battery’s manufacturer.
6.3.2 ENGINE
► CHANGING OIL
Before changing the oil, prepare a container with a volume of at least 2 litres . So that all the oil
flows out of the engine we recommend that you place something (e.g. wooden blocks) under the
side opposite the drain screw. Drain the oil while it is still warm.

Unscrew the filler opening of the oil so that the oil flows better and faster out of the engine.

Clip out the drain hose from the holder on the side of the engine and screw out the plug.

Tilt the hose towards the prepared container and allow the oil to drain completely.

Screw the plug back on and clip the hose back in. Fill the engine with the correct amount of the
recommended oil (
User’s manual for the engine
) and close the oil filler cap.

Use the dipstick to check the correct oil level. If necessary fill up the oil so that the oil is at the
correct level.
Further details about replacing oil as well as its type and amount are included in a separate user’s manual supplied by the
engine’s manufacturer.
If you come into contact with used oil, we recommend that you thoroughly wash your hands with soap and water.
Dispose of used oil according to environment protection laws. It is appropriate to deliver the oil in a closed container to a used oil
collection point. Under no circumstances should dispose of the used oil with other waste or pour it down the drain, on to waste or
on the floor.
► MAINTENANCE OF THE AIR FILTER
Never allow the engine to run without an air filter. This rapidly wears out the engine.
Maintain the air  lter according to the instructions contained in the user’s manual for the engine supplied by its manufacturer.
► MAINTENANCE OF THE SPARK PLUG
For the engine to run perfectly the spark plug must be correctly set and clean from deposits.
- Always use only the spark plug specified by the engine’s manufacturer!
- If the engine was running shortly before the inspection or replacement, then the spark plug will be very hot. So be very careful
not to burn yourself.

Take off the spark plug cable and remove the spark plug using a wrench key.

Visually inspect the exterior appearance of the spark plug. If the spark plug is visibly significantly
worn out or if the insulator is cracked or it is peeling, it is necessary to replace it.

If the spark plug is soiled or only slightly worn, it is necessary to carefully clean it with a suitable wire
brush (copper).

Using a gauge measure set the distance of the electrodes ( User's manual for the engine ).

After performing maintenance on or replacing the spark plug, pull it tight in position. An incorrectly
tightened spark plug heats up significantly and may cause serious damage to the engine.
0,7 - 0,8 mm