Specifications
Table Of Contents
- Table of Contents
- Introduction
- Safety
- Product Overview
- Before You Operate
- Engine Operation
- Periodic Maintenance
- Introduction
- Safety Precautions
- Precautions
- EPA Maintenance Requirements
- Periodic Maintenance Schedule
- Periodic Maintenance Procedures
- Daily Checks
- After Initial 50 Hours of Operation
- Every 50 Hours of Operation
- Every 100 Hours of Operation
- Every 150 Hours of Operation
- Every 250 Hours of Operation
- Draining the Fuel Tank
- Replacing the Engine Oil Filter Element
- Changing the Marine Gear Oil
- Checking or Replacing the Seawater Pump Impeller
- Cleaning the Intake Silencer (Air Cleaner) Element
- Cleaning or Replacing the Exhaust / Water Mixing Elbow
- Adjusting the Alternator V-ribbed belt Tension
- Cleaning the Breather Pipe
- Checking the Wiring Connectors
- Every 1000 Hours of Operation
- Troubleshooting
- Long-Term Storage
- Specifications
- System Diagrams
- EPA Warranty USA Only
- Emission System Warranty
YM Series Operation Manual 75
TROUBLESHOOTING
SAFETY PRECAUTIONS
Before performing any troubleshooting
procedures within this section, review the
Safety section on page 5.
If a problem occurs, stop the engine
immediately. Refer to the Symptom column
in the Troubleshooting Chart to identify the
problem.
TROUBLESHOOTING
AFTER STARTING
Just after the engine has started, check
the following items at a low engine speed:
Is sufficient water being discharged
from the seawater outlet pipe?
If the discharge is low, stop the engine
immediately. Identify the cause and repair.
Is the smoke color normal?
The continuous emission of black exhaust
smoke indicates engine overloading. This
shortens the engines life and should be
avoided.
Are there abnormal vibrations or noise?
Depending on the hull structure, engine
and hull resonance may suddenly increase
at certain engine speed ranges, causing
heavy vibrations. Avoid operation in this
speed range. If any abnormal sounds are
heard, stop the engine and inspect for
cause.
Alarm sounds during operation.
If the alarm sounds during operation, lower
the engine speed immediately, check the
warning lamps and stop the engine for
repairs.
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