Transmission Oil Replacement - Yamaha DT501988 Owner's Manual

Do not add any chemical additives.
Trans mission oil also lubricates the
clutch and additives could cause clutch
slippage.
U-324
Be sure no foreign material enters the
crankcase.
H-404
Transmission oil replacement
1. To drain the oil, warm up the engine for
several minutes.
2. Place an oil pan under the engine.
3. Remove the drain plug and drain the oil.
1. Drain plug
4. Reinstall the drain plug (make sure it is
tight).
Drain plug torque:
20 Nm (2.0 m·kg, 14 ft·lb)
5. Add oil through the dip stick hoJe.
Periodic oil change:
0.7 L (0.61 Imp qt, 0.74 US qt)