Filter
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Periodic maintenance and adjustment
81
RST90GT
RS90GT / RS90LTGT / RST90GT
RST90
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.
TIP
● A “” mark is stamped on the crankcase
near the engine oil drain bolt for easy iden-
tification.
● Dispose of used oil according to local regu-
lations.
● Skip steps 11–13 if the oil filter cartridge is
not being replaced.
11. Remove the oil filter cartridge with an oil
filter wrench.
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.
1. Cylinder head cap
1. Engine oil drain bolt (oil tank)
2. Gasket
1. Engine oil drain bolt (oil tank)
2. Gasket
1
1
2
1
2
1. Engine oil drain bolt (crankcase)
2. Gasket
3. “” mark
1. Oil filter cartridge
1
3
2
1
U8JA11E0.book Page 81 Monday, June 14, 2010 10:22 AM