Measuring The Engine Oil Pressure - Yamaha FJR13AEV(C) Service Manual

12.Check:
• Engine oil pressure
M MMM M MMM M M MMM M M MMM M
a. Remove the right side cowling. Refer to
"GENERAL CHASSIS" on page 4-1.
b. Slightly loosen the engine oil check bolt "1".
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)
and check the engine oil pressure again.
f. Tighten the oil gallery bolt to specification.
Engine oil check bolt
20 Nm (2.0 m·kg, 14 ft·lb)
g. Install the right side cowling. Refer to "GEN-
ERAL CHASSIS" on page 4-1.
L LLL L LLL L L LLL L L LLL L
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 min-
utes, and then turn it off.
ECA13410
CAUTION:
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:
• Right side cowling
Refer to "GENERAL CHASSIS" on page 4-1.
4. Remove:
• Main gallery bolt
M MMM M M MMM M MMM
L LLL L L LLL L LLL
3-16
EWA12980
WARNING
The engine, muffler and engine oil are ex-
tremely hot.
5. Install:
• Oil pressure gauge set "1"
• Oil pressure adapter B "2"
Oil pressure gauge set
90890-03120
Oil pressure adapter B
90890-03124
6. Measure:
• Engine oil pressure
(at the following conditions)
Out of specification → Adjust.
Oil pressure (hot)
30.0 kPa/1000 r/min (4.4
psi/1000 r/min) (0.30
kgf/cm²/1000 r/min)
Oil temperature
80.0–90.0 °C (176.00–194.00 °F)
Engine oil pressure
Below specification
Above specification
7. Install:
• Main gallery bolt
Main gallery bolt
12 Nm (1.2 m·kg, 8.7 ft·lb)
8. Install:
• Right side cowling
Refer to "GENERAL CHASSIS" on page 4-1.
ENGINE
Possible causes
• Faulty oil pump
• Clogged oil filter
• Leaking oil passage
• Broken or dam-
aged oil seal
• Leaking oil passage
• Faulty oil filter
• Oil viscosity too
high