Measuring The Engine Oil Pressure

ENGINE

12.Check:                                                       EWA12980

 • Engine oil pressure                                                WARNING
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼                                The engine, muffler and engine oil are ex-
a. Remove the right side cowling. Refer to                      tremely hot.
   “GENERAL CHASSIS” on page 4-1.
                                                                5. Install:
b. Slightly loosen the engine oil check bolt “1”.
                                                                 • Oil pressure gauge set “1”
                                                                 • Oil pressure adapter B “2”

                                                                                Oil pressure gauge set
                                                                                 90890-03120
                                                                                Oil pressure adapter B
                                                                                 90890-03124

c. Start the engine and keep it idling until engine
   oil starts to seep from the oil gallery bolt. If no
   engine oil comes out after one minute, turn
   the engine off so that it will not seize.
d. Check the engine oil passages, the oil filter
   cartridge and the oil pump for damage or
   leakage. Refer to “OIL PUMP” on page 5-76.
e. Start the engine after solving the problem(s)                6. Measure:
   and check the engine oil pressure again.                      • Engine oil pressure
f. Tighten the oil gallery bolt to specification.                  (at the following conditions)
                                                                   Out of specification → Adjust.
                Engine oil check bolt
       T.
           R.
                 20 Nm (2.0 m·kg, 14 ft·lb)                                     Oil pressure (hot)
                                                                                 30.0 kPa/1000 r/min (4.4
g. Install the right side cowling. Refer to “GEN-                                psi/1000 r/min) (0.30
   ERAL CHASSIS” on page 4-1.                                                    kgf/cm²/1000 r/min)
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                                                                                Oil temperature
                                                                                 80.0–90.0 °C (176.00–194.00 °F)
EAS20820

MEASURING THE ENGINE OIL PRESSURE
1. Check:                                                        Engine oil pressure           Possible causes
 • Engine oil level                                                                          • Faulty oil pump
   Below the minimum level mark → Add the                                                    • Clogged oil filter
   recommended engine oil to the proper level.                   Below specification         • Leaking oil passage
2. Start the engine, warm it up for several min-                                             • Broken or dam-
   utes, and then turn it off.                                                                 aged oil seal
ECA13410
                                                                                             • Leaking oil passage
CAUTION:
                                                                                             • Faulty oil filter
When the engine is cold, the engine oil will                     Above specification
                                                                                             • Oil viscosity too
have a higher viscosity, causing the engine                                                    high
oil pressure to increase. Therefore, be sure
to measure the engine oil pressure after                        7. Install:
warming up the engine.                                           • Main gallery bolt
3. Remove:                                                                      Main gallery bolt
 • Right side cowling                                                  T.
                                                                           R.
                                                                                 12 Nm (1.2 m·kg, 8.7 ft·lb)
   Refer to “GENERAL CHASSIS” on page 4-1.
4. Remove:                                                      8. Install:
 • Main gallery bolt                                             • Right side cowling
                                                                   Refer to “GENERAL CHASSIS” on page 4-1.

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