PERIODIC MAINTENANCE
Inspection and Maintenance of EPA Emission-Related Parts
• Marine diesel engines less than 37 kW (50 hp metric) are certified as EPA non-road
engines
• Marine diesel engines greater than 37 kW (50 hp metric) are certified as EPA CI marine
engines
Inspection and Maintenance of EPA Emission-Related Parts for Non-Road
Marine Engines
Parts
Clean fuel injection nozzle
Check fuel injection nozzle pressure and spray pattern
Check fuel injection pump adjustment
Note: The inspection and maintenance items shown above should be performed at your
Yanmar Marine dealer or distributor.
48
GM Series Operation Manual
© 2007 Yanmar Marine International
Interval
1500 hours
3000 hours
3000 hours