Checking Bolts And Nuts; Cleaning Cooling-Water Passages - Yamaha F6A Owner's Manual

EMU00408

CHECKING BOLTS AND NUTS

1) Check that bolts securing the cylinder
head and engine and the nut securing
the flywheel are tightened with their
specified tightening torque.
2) Check the tightening torque of other
bolts and nuts.
EMU01111
CLEANING COOLING-WATER
PASSAGES
Flushing device equipped model
Perform this procedure right after operation
for the most thorough flushing.
1) After shutting off the engine, unscrew
the garden-hose connector 2 from the
fitting 1 on the bottom cowling.
2) Screw the garden-hose connector 2
onto a garden hose 3 which is con-
nected to a fresh-water supply.
3) With the engine off, turn on the water
tap and let the water flush through the
cooling passages for about 15 minutes.
Turn off the water and disconnect the
garden hose 3.
4) When flushing is complete, reinstall the
garden-hose
fitting 1 on the bottom cowling. Tighten
the connector securely.
CAUTION:
@
Do not leave the garden-hose connector
loose on the bottom cowling fitting or let
the hose hang free during normal opera-
tion. Water will leak out of the connector
instead of cooling the engine, which can
cause serious overheating. Be sure the
connector is tightened securely on the
fitting after flushing the engine.
@
4-67
GB
2
connector on the