Overheat Warning System - Yamaha AR230 Owner's/Operator's Manual

6. Warning Indicators
There are three warning indicators
in each tachometer to alert you
about certain conditions on your
boat. These warnings correspond to
the engine monitored by the tachom-
eter.
Check Engine – If a sensor malfunc-
tion or a short circuit is detected,
the warning indicator will come on.
If this occurs, reduce engine speed
and return to shore. Have a Yamaha
dealer check the engine and cir-
cuits.
Engine Overheat – This model is
equipped with an engine overheat
warning system. See the following
section for an explanation.
Oil Pressure – If oil pressure does
not rise to specification, the oil pres-
sure warning indicator comes on.
At the same time, engine speed
reduction control is activated, limit-
ing maximum speed to 3000 rpm.
If this occurs, reduce engine speed
and return to shore. Have a Yamaha
dealer check the engine oil pres-
sure.
N
5 6
4 7
3 8
2 9
10
1
11
0
NOTE: All three warning indicators
blink when the No-Wake Mode system
is engaged (see page 2-15).
F
PORT STBD
2-13
& F
EATURES

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 1 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.
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
NOTE: If water cooling passages on
the engines are dry, it will take about
20 seconds for water to reach the pilot
outlets after starting.
2
UNCTIONS