Checking The Cooling System; Changing The Coolant - Yamaha FZ1-N Service Manual

• Coolant level
The coolant level should be between the
maximum level mark "a" and minimum level
mark "b".
Below the minimum level mark → Add the
recommended coolant to the proper level.
ECA13470
CAUTION:
• Adding water instead of coolant lowers
the antifreeze content 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
minutes, and then turn it off.
4. Check:
• Coolant level
NOTE:
Before checking the coolant level, wait a few
minutes until it settles.
EAS21120

CHECKING THE COOLING SYSTEM

1. Check:
• Radiator "1"
• Radiator inlet hose "2"
• Radiator outlet hose "3"
• Oil cooler "4"
• Oil cooler inlet hose "5"
• Oil cooler outlet hose "6"
• Water jacket joint "7"
• Water jacket joint inlet hose "8"
• Water pump inlet pipe "9"
• Water pump outlet pipe "10"
Cracks/damage → Replace.
Refer to "RADIATOR" on page 6-1.
EAS21130

CHANGING THE COOLANT

1. Remove:
• Rider and passenger seat
Refer to "GENERAL CHASSIS" on page 4-
1.
2. Remove:
• Coolant reservoir tank
• Coolant reservoir hose
3. Disconnect:
• Coolant reservoir cap "1"
3-19
ENGINE