Measuring The Engine Oil Pressure - Yamaha Wolverine YX70EPNG Service Manual

9. Install:
• Dipstick
10.Start the engine, warm it up for several min-
utes, and then turn it off.
11.Check:
• Engine
(for engine oil leaks)
12.Check:
• Engine oil level
Refer to "CHECKING THE ENGINE OIL
LEVEL" on page 3-13.
13.Install:
• Passenger seat belt buckle rubber cover
Refer to "GENERAL CHASSIS (3)" on page
4-6.
• Passenger seat cushion
Refer to "GENERAL CHASSIS (2)" on page
4-3.
EBS30458

MEASURING THE ENGINE OIL PRESSURE

1. Check:
• Engine oil level
Refer to "CHECKING THE ENGINE OIL
LEVEL" on page 3-13.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
ECB02510
NOTICE
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:
• Center cover
• Under-seat storage compartment
Refer to "GENERAL CHASSIS (3)" on page
4-6.
4. Remove:
• Main gallery bolt "1"
PERIODIC MAINTENANCE
EWB03620
WARNING
The engine, muffler and engine oil are ex-
tremely hot.
5. Install:
• Oil pressure gauge "1"
• Adapter "2"
Pressure gauge
90890-03153
Pressure gauge
YU-03153
Oil pressure adapter H
90890-03139
6. Measure:
• Engine oil pressure
(at the following conditions)
Oil pressure (hot)
50.0 kPa/1600 r/min
(0.50kgf/cm²/1600 r/min, 7.3
psi/1600 r/min)
Out of specification → Check.
Engine oil pressure
Below specification
Above specification
3-15
1
2
1
Possible causes
• Faulty oil pump
• Clogged oil strainer
• Leaking oil passage
• Broken or damaged
oil seal
• Leaking oil passage
• Faulty oil filter
• Oil viscosity too high