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Yamaha Y-30C Manual page 33

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Y-JOC 32
4-3. WARMING UP:
(1)
Operate the engine at around 700- 800 RPM for at
teast
five minutes to completely warm up
the engine.
(2) :If the engine is running normally. place the control lever at neutral detent and engage clutch
by pushing in the engine warm up knob and then gradually Increase speed.
NOTE:
WHEN RUNNING THE ENGINE FOR THE FIRST TIME AFTER LAUNCHING. RUN
IT FOR 15 "' 20 MIN UTES AT ABOUT 700 -- 800 RPMs.
4-4. POINTS TO CHECK DURING OPERATION:
{ 1)
Fuel Oil: Check the fuel gauge.
Be sure to add fuet before the gauge shows empty.
(2}
Lubrication Oil: Check that the oH pressure warning light Is OFF.
(3)
Check occasionally that the cooling water is coming out of the engine exhaust on the transom
and
that
the cooling water temperature warning lamp Is OFF.
(4)
Check the color of the exhaust. Excessively black exhaust fumes Indicate that the load is too
great and should be reduced.
(5)
Abnormal Sound: If the engine produces unusual noise during operation. stop the engine
lmmedlatefy and check it carefully.
NOTE:
PlEASE READ "YANMAR OPERATION MANUAL" CAREFULLY.
4-5. SECURING ENGINE:
( 1)
Gradually reduce the speed to LOW.
(2)
Place the control lever at the neutral detent and idfe the engine for about 5 minutes.
(3)
Disengage the clutch and race the engine at 2500 rpm before stopping to expel any gas in the
cylinder.
(4)
Set the engine to the lowest revotution speed (about 500 rpm). cut the fuel, and stop the
engine.
NOTE:
1) NEVER USE THE DECOMPRESSION LEVER TO STOP ENGINE.
2) To cut. the fuet pull the fuel shut-off knob lightly and hold it until the engine stops
completely. It will take several seconds to stop because of its momentum. And also
the sound of engine ls very quiet there is a tendency to pull the fuel shut-off knob too
strongly to break.
(5)
Turn off:
1) Key switch
2)
Battery switch
3} Cooling water sea valve
4) Fuel filter cock

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