Yamaha T135 SE 2016 Owner's Manual page 46

PERIODIC MAINTENANCE AND MINOR REPAIR
To change the engine oil (with or
without oil filter element replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.
3. Remove the engine oil filler cap
and drain bolt along with the O-
ring, compression spring, and en-
gine oil strainer, to drain the oil
6 from the crankcase. NOTICE:
When removing the engine oil
drain bolt, the O-ring, compres-
sion spring, and oil strainer will
fall out. Take care not to lose
these parts.
1. Engine oil drain bolt
2. O-ring
3. Compression spring
4. Strainer
5. Oil pan
TIP
Check the O-ring for damage and re-
place it if necessary.
4. Clean the engine oil strainer with
solvent.
TIP
Skip steps 5–7 if the oil filter element is
not being replaced.
6-11
1. Bolt
2. Oil filter element cover
5. Remove the oil filter element cover
by removing the bolts.
6. Remove and replace the oil filter
element and O-ring.