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
Refer to the Coolant Level Inspection in the PeriodicMaintenance chapter.
Coolant Draining
Refer to the Coolant Change in the Periodic Maintenance chapter.
Coolant Filling
Refer to the Coolant Change in the Periodic Maintenance chapter.
Coolant
Pressure TestingOil Pump Removal
Remove:
Coolant (Drain, see Coolant Change in the Periodic
Maintenance chapter)
Engine Oil (Drain, see Engine Oil Change in the Periodic
Maintenance chapter)
Sidestand Switch Lead Connector [A] (Disconnect)
Bolt [B] and Water Pipe [C]
Water Pump Cover Bolts [D]
Water Pump Cover [E ...
Spring Preload Adjustment
To adjust the spring preload, turn the spring preload adjuster
[A].
The standard adjuster setting is the 6 turns in from the
fully counterclockwise position.
WARNINGIf both adjusters are not adjusted
equally, handling
may be impaired and a hazardous condition may
result. B ...
License Plate Light Bulb Replacement
Remove:
Screws [A]
License Plate Light Cover [B]
Pull the bulb [A] out of the socket [B].
NOTICE
Do not turn the bulb. Pull the bulb out to prevent
damage to the bulb. Do not use bulb rated for
greater wattage than the specified value.
Replace the bulb with a new one.
In ...