Yamaha RS90PB Owner's Manual page 88

Periodic maintenance and adjustment
RST90
1. Engine oil drain bolt (oil tank)
2. Gasket
9. Place an oil pan under the engine to col-
lect the used oil.
10. Remove the engine oil drain bolt and its
gasket to drain the oil from the crank-
case.
1
1. Engine oil drain bolt (crankcase)
2. Gasket
3. " " mark
TIP
A " " mark is stamped on the crankcase
G
near the engine oil drain bolt for easy iden-
tification.
Dispose of used oil according to local regu-
G
lations.
Skip steps 11–13 if the oil filter cartridge is
G
not being replaced.
11. Remove the oil filter cartridge with an oil
filter wrench.
82
2
1
2
1. Oil filter cartridge
TIP
An oil filter wrench is available at a Yamaha
dealer.
12. Apply a thin coat of engine oil to the O-
ring of the new oil filter cartridge.
3
1. O-ring
TIP
Make sure that the O-ring is properly seated.
13. Install the new oil filter cartridge with an
oil filter wrench, and then tighten it to the
specified torque.
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
14. Install the engine oil drain bolts and their
new gasket, and then tighten the bolts to
the specified torques.
1