Measuring The Engine Oil Pressure - Yamaha YZF-R1B 2012 Service Manual

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Engine oil quantity
Total amount
4.58 L (4.84 US qt, 4.03 Imp.qt)
Without
replacement
3.73 L (3.94 US qt, 3.28 Imp.qt)
With oil filter cartridge replace-
ment
3.93 L (4.15 US qt, 3.46 Imp.qt)
9. Install:
• Engine oil filler cap
10. Start the engine, warm it up for several
minutes, and then turn it off.
11. Check:
• Engine
(for engine oil leaks)
12. Install:
• Lower cowlings
Refer to "GENERAL CHASSIS" on page
4-1.
13. Check:
• Engine oil level
Refer to "CHECKING THE ENGINE OIL
LEVEL" on page 3-28.
EAS20820

MEASURING THE ENGINE OIL PRESSURE

1. Check:
• Engine oil level
Below the minimum level mark "a" → 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.
email: info@motomatrix.co.uk
oil filter cartridge
PERIODIC MAINTENANCE
3. Remove:
• Main gallery bolt "1"
EWA12980
WARNING
The engine, muffler and engine oil are
extremely hot.
4. Install:
• Oil pressure gauge "1"
• Oil pressure adapter H "2"
Pressure gauge
90890-03153
YU-03153
Oil pressure adapter H
90890-03139
5. Measure:
• Engine oil pressure
(at the following conditions)
Oil pressure
320 kPa/5000 r/min (3.20 kgf/
cm²/5000 r/min, 45.5 psi/5000
r/min) at 75–85 °C (167–185 °F)
Out of specification → Check.
Engine oil pressure Possible causes
Below specification
3-30
• Faulty oil pump
• Clogged oil filter
• Leaking oil passage
• Broken or damaged
oil seal