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At full load (with the boat cruising) the
maximum engine speed should be about
3,000 resp. 3600 RPM (see technical data
page 60). If the engine does not reach this
speed, it is being overloaded!
If this is the case, check the ship’s pro-
peller for defects or irregularities, and also
to see that it is the correct pitch and diam-
eter.
Checking engine speed
The engine idling speed should be
850 rpm.
Allow the engine to warm up normally
(until the coolant temperature reaches at
least 60°C (140°F).) before checking
and/or adjusting the idling speed.
Check the engine RPM using a rev. count-
er, or use the rev. counter fitted to the con-
trol panel.
Adjusting engine idling speed
If the engine speed differs from that stated
above, it must be adjusted.
The engine idling speed can be reset
using the adjustment screw on the fuel
pump.
Maintenance
Checking engine speed
WARNING
The maximum engine speed adjust-
ment screw has been correctly set at
the factory and sealed. DO NOT
attempt to remove this seal.
Lead seal
Maximum
speed adjust-
ment screw
Minimum
speed adjust-
ment screw
VD00134 VD00150
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