This is the most complete service repair manual for Yanmar Marine Diesel Engine 3YM30 3YM20 2YM15. This manual contains service, repair procedures, assembling, disassembling ,electrical diagrams and everything you need to know. Service Repair Manual Covers: 1. General 2. Inspection and adjustment 3. Troubleshooting 4. Disassembly and reassembly 5. Inspection and servicing of basic engine parts 6. Fuel injection equipment 7. Intake and exhaust system 8. Lubrication system 9. Cooling water system 10. Reduction and reversing gear 11. Remote control (Optional) 12. Electrical system 13. Service standards 14. Tightening torque for bolts and nuts ================================================== High Quality PDF Manual, All pages are printable. Instant Download No Shipping Cost No Need to Wait For A CD-ROM File Format: PDF Language: English Compatible: All Versions of Windows & Mac Requirements: Adobe PDF Reader Thank you for visiting!.