Monterey Boats 350 Sport Yacht, Owner'S Manual

Page: 189 / 196

189
350 SPORT YACHT
ENGINE PROBLEMS
An engine suddenly will not operate at or above cruise
RPM.
An engine is loosing RPM. The boat is not overloaded and
the hull bottom and running gear are clean and in good
condition.
B oth engines suddenly shut down and won’t restart.
The engine runs too cold.
The engine starter will not operate.
• The engine emergency system has been activated. The on
board computer has sensed a problem and has limited the
RPM to protect the engine. Find and correct the problem.
• The tachometer is bad and needs to be replaced.
• A throttle control cable is loose and out of adjustment. Check
and secure control cable.
• The fuel filter could be dirty. Inspect and replace the fuel
filter.
• The electronic engine control system on the engine is
malfunctioning. Repair the engine control system.
• The automatic fire extinguisher in the engine compartment
has activated and the engines were shut down by the extin-
guishing agent. Check the monitor panel for a red light or
no green light. If the red light is lit or the green light is out,
wait 15 minutes, if safe to do so, to ensure a possible fire is
out. Then inspect the engine compartment. Correct any
problems found and then ventilate the engine compartment
and start the engines.
• The thermostat is faulty. Replace thermostat.
• The temperature gauge is not reading properly. Replace the
temperature gauge or sender.
• The battery selector switch is off. Turn on switch.
• The shift control is not fully engaged in neutral. Move shifter
from forward to neutral and try again.
• The fuse or circuit breaker for the starting circuit is blown.
Reset the breaker or replace the fuse. Repair circuit if
necessary
• The battery is weak or low. Charge or replace battery.
• Corroded or loose battery connections. Tighten, clean and
protect connections.
PROBLEM
CAUSE AND SOLUTION
TROUBLESHOOTING
GUIDE