Overheat Warning System - Yamaha SR230 Owner's/Operator's Manual

OVERHEAT WARNING SYSTEM

The engine has an overheat warning
device. If either engine starts to over-
heat, the engine speed of the affected
engine will be limited to 3000 rpm.
Each engine is equipped with cooling-
water pilot outlets on the starboard side
of the hull. Check that water comes out
of the outlet while the engine is run-
ning, particularly while applying throttle.
If you do not see any water at the out-
let, cooling water may not be circulating
in the engine.
PILOT OUTLETS
NOTE: If water cooling passages on
the engines are dry, it will take about 20
seconds for water to reach the pilot out-
lets after starting.
PILOT OUTLETS
F
EATURES
If water is not circulating, something
may be clogging the jet intake grate.
Refer to the Jet Pump Clean-Out pro-
cedures on page 5-5 for further infor-
mation.
CAUTION:
If the cause of overheating cannot
be found and corrected, take special
precautions to avoid major engine
damage while you return to shore.
SINGLE ENGINE OVERHEATING —
Shut off the overheating engine and
use the properly running engine to
return to shore. Operate at "no-
wake" speed to prevent water from
flooding the non-operating engine
through the cooling water intake.
BOTH ENGINES OVERHEATING —
If getting a tow from another vessel
is not possible,
engines just slightly above idle
while you return to shore. If you can
be towed, refer to "Towing the Sport
Boat" on page 5-3.
2-11
& F
UNCTIONS
operate
2
both