Aeon AT56-69E, Service Manual, Page: 23 / 196

MAINTENANCE
2-13
ENGINE OIL AND FILTER SERVICE
The single cylinder engine is a wet-sump engine, meaning the
oil is contained in the bottom of the crankcase. To check the oil
level follows the procedure listed below.
1. Position the vehicle on a level surface.
2. Clean area around the drain plug.
3. Run engine two to three minutes until warm.
4. Stop the engine.
CAUTION
Hot oil can cause serious burns to skin. Do not
allow hot oil to come in contact with skin.
5. Place a drain pan beneath the engine crankcase.
6. Remove the drain plug and pre-filter screen. Allow the oil to
drain completely.
7. Wash the oil pre-filter screen with solvent to remove any
debris. Allow the screen to air dry.
8. Inspect the O-ring on drain plug, replace if needed.
Recommended Engine oil:
Synthetic, 0W-40 Above 0
°
C (32
°
F)
Semi-Synthetic 20W-40 Below 0
°
C (32
°
F)
NOTE: The sealing surfaces on the drain plug and
crankcase should be clean and free of burrs, nicks
or scratches.
9. Reassemble the pre-filter screen and spring to the pre-filter
plug.
10. Reinstall the pre-filter drain plug. Torque to 11 ft. lbs.
(15Nm).
Crankcase Drain Plug: 15 Nm (11 ft. lbs.)
11. Remove the filler. Add 1800 ml (60 oz.) of recommended
oil. Do not overfill.
12. Reinstall the filler .
13. Start the engine. Allow it to idle for one to two minutes.
14. Stop the engine and inspect for leaks.
15. Check the oil level. Add oil as needed to bring the level is
in the “normal range”.
Engine Oil Capacity:
1800 ml (40 oz.)/ 0W40 or 20W/40
VALVE CLEARANCE ADJUSTMENT
Intake / Exhaust Valve Clearance
1. Remove the cylinder head cover to expose the intake and
exhaust rocker arms.