2-10 PERIODIC MAINTENANCE
ENGINE COOLANT
ENGINE COOLANT LEVEL CHECK
• Remove the radiator cap 1.
• Check that the engine coolant level is at the bottom of the inlet
hole. If not, replenish the radiator with specified engine cool-
ant.
• Tighten the radiator cap securely.
NOTE:
* This motorcycle does not have an overflow tank at the end of
breather hose. Therefore, engine coolant level may decrease
while riding. Check the engine coolant level every time before
riding.
* When replenishing engine coolant, be sure to use engine cool-
ant mixed with distilled water at the ratio of 50:50. Adding only
water will dilute engine coolant and it may decrease cooling
performance.
* If the motorcycle is to be exposed to temperatures below –31
°C (–24 °F), the percentage of antifreeze should be increased
to 55 % or 60 %, according to figure 1.
WARNING
You can be injured by scalding fluid or steam if you
open the radiator cap when the engine is hot.
Do not open the radiator cap when the engine is hot.
Wait until engine cools.
CAUTION
Improperly tightening the radiator cap will prevent the
cooling system from reaching the specified operating
pressure and will cause coolant overflow.
Tighten the radiator cap until it locks firmly.
Antifreeze density Freezing point
50 % –31 °C (–24 °F)
55 % –40 °C (–40 °F)
60 % –55 °C (–67 °F)
Fig. 1 Engine coolant density-freezing
point curve
Freezing point
Density (%)
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