2007 Yamaha Motorsports Phazer Owners Manual - Page 24

2007 Yamaha Motorsports Phazer Manual

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ESU05410 Knock control system "KCS" indicator light This snowmobile is equipped with a system which detects engine knocking in order to protect the engine from damage. The knock control system "KCS" indicator light 1 comes on if knocking is detected, then flashes if the knocking increases. After the knocking has stopped, the knock control system "KCS" indicator light goes off. CAUTION: @ G G If the knock control system "KCS" indicator light comes on, the fuel tank may not have been filled with the recommended fuel. Reduce the engine speed to 6,000 r/min or less. As soon as possible, stop the engine, let it cool sufficiently, and then drain the fuel and refuel with the recommended fuel. If the knock control system "KCS" indicator light is flashing, have a Yamaha dealer inspect the snowmobile as soon as possible. @ NOTE: @ To help prevent knocking, use premium unleaded gasoline only. (See pages 6-1-6-2 for more details.) @ ESU04180 Coolant temperature warning indicator If the engine overheats, the coolant temperature warning indicator 1 and the warning light 2 come on. When this occurs, stop the engine immediately and allow the engine to cool down, and then check the coolant level in the coolant reservoir. (See page 6-4.) CAUTION: @ Do not operate the engine if it overheats. @ 5-7

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5-7
ESU05410
Knock control system “KCS” indicator light
This snowmobile is equipped with a system which
detects engine knocking in order to protect the engine
from damage.
The knock control system “KCS” indicator light
1
comes
on if knocking is detected, then flashes if the knocking
increases.
After the knocking has stopped, the knock control system
“KCS” indicator light goes off.
CAUTION
:
@
●
If the knock control system “KCS” indicator light
comes on, the fuel tank may not have been filled
with the recommended fuel. Reduce the engine
speed to 6,000 r/min or less. As soon as possible,
stop the engine, let it cool sufficiently, and then
drain the fuel and refuel with the recommended
fuel.
●
If the knock control system “KCS” indicator light
is flashing, have a Yamaha dealer inspect the
snowmobile as soon as possible.
@
NOTE:
@
To help prevent knocking, use premium unleaded gaso-
line only. (See pages 6-1–6-2 for more details.)
@
ESU04180
Coolant temperature warning indicator
If the engine overheats, the coolant temperature warning
indicator
1
and the warning light
2
come on. When this
occurs, stop the engine immediately and allow the
engine to cool down, and then check the coolant level in
the coolant reservoir. (See page 6-4.)
CAUTION
:
@
Do not operate the engine if it overheats.
@