7. When operating the engine at low speed
for long periods of time, race the engine
once every 2 hours.
Note: Racing the engine: With the gear in
NEUTRAL, accelerate from the low speed
position to the high speed position and
repeat this process about 5 times. This is
done to clean out carbon from the cylinders
and the fuel injection valve. Neglecting to
race the engine will result in poor exhaust
color and reduce engine performance.
8. If possible, periodically operate the
engine at near maximum rpm while
underway. This will generate higher
exhaust temperatures, which will help
clean out hard carbon deposits,
maintaining engine performance and
prolonging the life of the engine
. NOTICE: NEVER turn off the battery
switch (if equipped) or short the battery
cables during operation. Damage to the
electric system will result.
ENGINE OPERATION
6LY3 LDC Operation Manual
39
© 2008 Yanmar Marine International