Checking The Coolant Level; Checking The Cooling System - Yamaha R1 Series 2015 Service Manual

1
7. Measure:
• Engine oil pressure
(at the following conditions)
Oil pressure
220.0 kPa/5000 r/min@80 C
(31.9 psi/5000 r/min@176 F)
Out of specification
Engine oil pressure
Below specification
Above specification
8. Remove:
• Oil pressure gauge
• Adapter C
• Oil pressure switch joint bolt
• Oil pressure switch joint (with the O-ring)
9. Install:
• O-ring "1"
New
• Oil pressure switch joint (with the oil pressure
switch) "2"
• Oil pressure switch joint bolt "3"
Oil pressure switch joint bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
2
Check.
Possible causes
• Faulty oil pump
• Clogged oil filter
• Leaking oil passage
• Broken or damaged
oil seal
• Faulty oil filter
• Oil viscosity too high
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2
3
PERIODIC MAINTENANCE
EAS30811

CHECKING THE COOLANT LEVEL

1. Stand the vehicle on a level surface.
TIP
• Place the vehicle on a suitable stand.
• 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".
Below the minimum level mark
recommended coolant to the proper level.
a
b
ECA21281
NOTICE
• Adding water instead of coolant dilutes the
antifreeze concentration of the coolant. If
water is used instead of coolant; check,
and if necessary, correct the antifreeze
concentration of the coolant.
• Use only distilled water. However, if dis-
tilled water is not available, soft water may
be used.
3. Start the engine, warm it up for several min-
utes, and then turn it off.
4. Check:
• Coolant level
TIP
Before checking the coolant level, wait a few
minutes until it settles.
EAS30812

CHECKING THE COOLING SYSTEM

1. Check:
• Radiator "1"
• Radiator inlet hose "2"
• Radiator outlet hose "3"
• Water pump inlet pipe "4"
• Water pump outlet pipe "5"
• Oil cooler "6"
• Oil cooler outlet hose "7"
• Oil cooler inlet hose "8"
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