Yamaha VK10L Manual page 32

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1
1
COOLING SYSTEM
11. Bleed the air from the cooling system.
12. Inspect:
2
• Cooling system
Decrease of pressure (leaks) → Repair as
required.
Inspection steps:
• Attach the cooling system tester 1 and adapter
2 to the coolant filler 3.
• Apply 100 kPa (1.0 kg/cm
• Measure the pressure with the gauge.
Air bleeding
1. Bleed air from the cooling system.
Air bleeding steps:
• Lift up the tail of the machine.
• Remove the coolant filler cap.
• Remove the bleed bolt 1 on the heat
exchanger.
• While slowly adding coolant to the coolant hose
joint (coolant filler), drain the coolant until no
more air bubbles appear.
• Tighten the bleed bolt 1.
• Add coolant to the coolant reservoir between
the minimum level and maximum level.
• Install the coolant filler cap.
Apply and lock the parking brake. Start the
engine and run it at approximately 2,200 ~
2,600 r/min until the coolant circulates (approxi-
mately 3 ~ 5 minutes). The heat exchanger will
be warm to the touch.
WARNING
To avoid severe injury or death:
• Make sure the machine is securely supported
with a suitable stand.
• Do not exceed 2,600 r/min. Drive line damage
and excessive V-belt wear could occur, or the
machine could unexpectedly move forward if
the clutch engages.
• Operate the engine only in a well-ventilated
area.
7
INSP
ADJ
Cooling system tester:
90890-01325, YU-24460-01
Adapter:
90890-01352, YU-33984
2
, 14 psi).