Measuring The Engine Oil Pressure; Checking The Coolant Level - Yamaha TMAX 2020 Service Manual

EAS30810

MEASURING THE ENGINE OIL PRESSURE

1. Remove:
• Engine oil pressure check point plug "1"
(Bottom of the crankcase)
EWA12980
WARNING
The engine, muffler and engine oil are ex-
tremely hot.
2. Install:
• Oil pressure gauge "1"
• Adapter "2"
Oil pressure gauge set
90890-03120
Oil pressure adapter B
90890-03124
Pressure gauge
90890-03153
Pressure gauge
YU-03153
1
3. Check:
• Engine oil level
Below the minimum level mark  Add the
recommended engine oil to the proper level.
4. Start the engine and allow it to warm up suffi-
ciently.
1
2
3-29
PERIODIC MAINTENANCE
ECA13410
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.
5. Measure:
• Engine oil pressure
(at the following conditions)
Oil pressure
150.0 – 350.0 kPa/60 – 90 C /
1200 r/min (1.50 – 3.50 kgf/cm²/
140 – 194 F/1200 r/min, 21.7 –
50.7 psi/140 – 194 F/1200 r/min)
Engine oil pressure
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.
Engine oil pressure check point
plug
12 N·m (1.2 kgf·m, 8.9 lb·ft)
EAS30811

CHECKING THE COOLANT LEVEL

1. Stand the vehicle on a level surface.
TIP
• Place the vehicle on the centerstand.
• Make sure the vehicle is upright.
2. Check:
• Coolant level
The coolant level should be between the
maximum level mark "a" and minimum level
mark "b".
Possible causes
• Faulty oil pump
• Clogged oil filter
• Leaking oil passage
• Broken or damaged
oil seal
• Leaking oil passage
• Faulty oil filter
• Oil viscosity too high