Yanmar 4BY2 - Page 5

Every 1000 Hours of Operation................................. 56
Every 2000 Hours of Operation................................. 57
Troubleshooting..............................................................59
Troubleshooting Information........................................... 59
Troubleshooting Chart...................................................60
Starting Trouble .................................................... 60
Exhaust Color....................................................... 61
Vibration - Drive Disengaged.................................... 61
Vibration - Drive Engaged........................................ 62
Engine Knocks...................................................... 62
Low Power Output ................................................. 62
Engine Overheat ................................................... 63
Engine Runs Cold.................................................. 63
Coolant Loss ........................................................ 63
Diagnostic Trouble Codes..............................................64
Diagnostic Trouble Code Table ................................ 65
Long-Term Storage..........................................................69
Prepare Engine for Long-Term Storage.............................69
Draining the Seawater Cooling System....................... 70
Specifications..................................................................71
Engine Specifications....................................................71
EPA Warranty USA Only....................................................75
Yanmar Co., Ltd. Limited Emission Control System Warranty
- USA Only..................................................................75
Your Warranty Rights and Obligations: ....................... 75
Warranty Period: ................................................... 76
Warranty Coverage:............................................... 76
Exclusions: .......................................................... 76
Owner’s Responsibility: .......................................... 76
Customer Assistance: ............................................ 77
Maintenance Log................................................... 78
TABLE OF CONTENTS
BY Series Operation Manual v
© 2008 Yanmar Marine International