Tiara Yachts C49, Owner'S Manual, Page: 136 / 152

Appendix F Troubleshooting Guide
F-2
Problem Cause and Solution
The boat vibrates at cruis-
ing speeds.
• Propeller may be damaged and need repair.
• The propeller or propeller shaft is bent. Repair or
replace damaged components.
• The running gear is fouled by marine growth or
rope. Clean running gear.
• The engine is not trimmed properly. Trim the en-
gine.
Engine Problems
The engine is running too
hot.
• The engine raw water pick-up strainer up is clogged
with marine growth. Clean pick-up.
• The engine raw water pump impeller is worn or
damaged. Repair the pump.
• The engine thermostat is faulty and needs to be
replaced.
The engine alternator is
not charging properly.
• The battery cable is loose or corroded. Clean and
tighten battery cables.
• The alternator is not charging and must be re-
placed.
• The engine battery isolator in the charging system
is not working properly. Replace the isolator.
• The battery is defective. Replace the battery.
• The alternator breaker may be in the OFF position.
The engine suddenly will
not operate over 2000
RPM.
• The engine emergency system has been activated.
The onboard computer has sensed a problem and
has limited the RPM to protect the engine. Find &
correct the problem.
• The tachometer is bad and needs to be replaced.