Measuring The Engine Oil Pressure - Yamaha 2012 TMAX XP500A Service Manual

f. Tighten the oil check bolt to specification.
Engine oil check bolt
20 Nm (2.0 m·kgf, 14 ft·lbf)
g. Install the bottom side cowling and bottom
center cowling.
Refer to "GENERAL CHASSIS" on page 4-
1.
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EAS20820

MEASURING THE ENGINE OIL PRESSURE

1. Check:
• Engine oil level
Below the minimum level mark → Add the
recommended engine oil to the proper
level.
2. Start the engine, warm it up for several
minutes, and then turn it off.
ECA13410
When the engine is cold, the engine oil will
have a higher viscosity, causing the engine
oil pressure to increase. Therefore, be sure
to measure the engine oil pressure after
warming up the engine.
3. Remove:
• Engine oil pressure check point plug "1"
(Bottom of the crankcase)
EWA12980
WARNING
The engine, muffler and engine oil are
extremely hot.
4. Install:
• Oil pressure gauge "1"
• Adapter "2"
PERIODIC MAINTENANCE
Oil pressure gauge set
90890-03120
or
Oil pressure adapter B
90890-03124
Pressure gauge
90890-03153
YU-03153
5. Measure:
• Engine oil pressure
(at the following conditions)
Oil pressure (hot)
120.0 kPa/1200 r/min (1.20 kgf/
cm²/1200 r/min, 17.4 psi/1200
r/min)
Oil temperature
60.0–80.0 °C (140.00–176.00
°F)
Out of specification → Adjust.
Engine oil pressure Possible causes
Below specification
Above specification
6. Install:
• Engine oil pressure check point plug
TIP
Lubricate the O-ring of the engine oil pressure
check point plug with a thin coat of lithium-
soap-based grease.
3-28
• Faulty oil pump
• Clogged oil filter
• Leaking oil passage
• Broken or damaged
oil seal
• Leaking oil passage
• Faulty oil filter
• Oil viscosity too
high