Tools Required ..................................................... 57Ask Your Authorized Yanmar Marine Dealer orDistributor for Help................................................. 57Tightening Fasteners.............................................. 58EPA Maintenance Requirements..................................... 59EPA Requirements for USA and Other ApplicableCountries............................................................. 59EPA Requirements ................................................ 59Conditions to Ensure Compliance with EPA EmissionStandards ............................................................ 60Inspection and Maintenance .................................... 61Installation of Exhaust Sampling Port ......................... 61Periodic Maintenance Schedule...................................... 62Inspection and Maintenance of EPA Emission-RelatedParts................................................................... 65Periodic Maintenance Procedures....................................66Daily Checks ........................................................ 66After Initial 50 Hours of Operation.............................. 67Every 50 Hours of Operation .................................... 72Every 250 Hours of Operation .................................. 74Every 500 Hours of Operation .................................. 81Every 1000 Hours of Operation................................. 81Troubleshooting..............................................................83Safety Precautions....................................................... 83Troubleshooting After Starting.........................................83Troubleshooting Information........................................... 84Troubleshooting Chart...................................................85Long-Term Storage..........................................................89Prepare Engine for Long-Term Storage.............................89Drain Seawater Cooling System...................................... 90Returning the Engine to Service.......................................92Specifications..................................................................93Principal Engine Specifications........................................933JH5E Engine Specifications ................................... 933JH5E Marine Gear Specifications ............................ 944JH5E Engine Specifications ................................... 954JH5E Marine Gear or Sail Drive Specifications ........... 974JH4-TE Engine Specifications ................................ 984JH4-HTE Engine Specifications .............................1004JH4-TE and 4JH4-HTE Marine Gear or Sail DriveSpecifications ......................................................102System Diagrams...........................................................103Piping Diagrams.........................................................103Wiring Diagrams.........................................................133EPA Warranty USA Only..................................................149TABLE OF CONTENTSJH Series Operation Manual v© 2009 Yanmar Marine International