Yamaha PZ50W Service Manual page 24

1
3
COOLING SYSTEM
7. Connect:
• Radiator outlet hose 1
8. Fill:
• Cooling system
CAUTION:
• Hard water or salt water is harmful to engine
parts. If soft water is not available, use boiled
or distilled water.
• Do not use water containing impurities or oil.
9. Bleed the air from the cooling system.
10. Inspect:
• Cooling system
Decrease of pressure (leaks) → Repair as
2
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.
2-6
INSP
ADJ
Recommended coolant:
High quality silicate-free ethylene
glycol antifreeze containing corro-
sion inhibitors
Coolant mixing ratio (coolant:water):
3:2 (60%:40%)
Total amount:
PZ50/PZ50GT/PZ50FX/PZ50M
3.6 L (3.17 Imp qt, 3.81 US qt)
PZ50VT/PZ50MP
3.7 L (3.26 Imp qt, 3.91 US qt)
Cooling system tester:
90890-01325, YU-24460-01
Adapter:
90890-01352, YU-33984
2
, 14 psi).