Visually inspect the coolant in the reserve tank.
If whitish cotton-like wafts are observed, aluminum parts
in the cooling system are corroded. If the coolant is
brown, iron or steel parts are rusting. In either case flush
the cooling system.
If the coolant gives off an abnormal smell, check for a
cooling system leak. It may be caused by exhaust gas
leaking into the cooling system.
Coolant Level Inspection
Situate the motorcycle so that it is perpendicular to the
Check the level through the coolant level gauge on the
reserve tank. The coolant level should be between the
"F" (Full) [A] and the "L" (Low) [B] level lines.
Check the level when the engine is cold (room or ambi-
If the coolant level is lower than the "L" (Low) level line,
add coolant to the "F" (Full) level line.
For refilling, add the specified mixture of coolant
and soft water.
coolant and degrades its anticorrosion properties.
The diluted coolant can attack the aluminum en-
gine parts. In an emergency, soft water alone can
be added. But the diluted coolant must be returned
to the correct mixture ratio within a few days. If
coolant must be added often, or the reserve tank
has run completely dry, there is probably leakage
in the cooling system. Check the system for leaks
(see Visual Leak Inspection, and Cooling System
The coolant should be changed periodically to ensure
long engine life.
Use coolant containing corrosion inhibitors made
specifically for aluminum engines and radiators in
accordance with the instructions of the manufactur-
ers (see Coolant Filling).
Adding water alone dilutes the
COOLING SYSTEM 3-5