This manual covers the Yamaha 20D 25N 20T 25T OUTBOARD, a 2-stroke, 2-cylinder inline, water-cooled outboard motor designed for marine applications. Known for its robust engineering and reliable performance, this motor is built to provide dependable power for a variety of boating needs. Its compact design and efficient operation make it a practical choice for recreational and professional users alike, ensuring a smooth and powerful experience on the water.
This comprehensive Workshop Service Repair Manual provides detailed instructions and technical information necessary for the maintenance and repair of your Yamaha outboard motor. It includes essential sections on general information, precautions, specifications, periodic maintenance, lubrication, and in-depth procedures for all major components, including the fuel, power, electrical, and gear case systems. With clear guidance on troubleshooting and diagnostic procedures, this manual is an indispensable resource for owners, technicians, and mechanics to ensure the optimal performance and longevity of the vehicle.
YAMAHA 20D 25N 20T 25T OUTBOARD MOTOR WORKSHOP SERVICE REPAIR MANUAL
THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS OPERATING SYSTEM
# ALL MAC OPERATING VERSION
YOU NEED THE ADOBE ACROBAT READER TO VIEW THE DOCUMENT AS THE MANUAL IS PDF FORMAT. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM Adobe Acrobat website
AS THIS MANUAL IS COMING TO YOU IN ZIP FORMAT, YOU NEED TO EXTRACT THE FILE BEFORE USE BY USING WINZIP OR WINRAR SOFTWARE. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM zip website
ENGINE COVERED:
395 cc 2-CYLINDER INLINE, 2-STROKE, WATER-COOLED
CONTENTS:
GENERAL INFORMATION
GENERAL PRECAUTIONS
SPECIFICATIONS
PERIODIC MAINTENANCE
SPECIAL TOOLS
TIGHTENING TORQUE
LUBRICATION CHART
FUEL SYSTEM
CARBURETOR SYSTEM
POWER UNIT
CYLINDER HEAD
CYLINDER BLOCK
CONTROL UNIT
PISTON-PISTON RING
PISTON PIN AND SMALL END BEARING
CRANKSHAFT-REED VALVE
THERMOSTAT-BALL BEARING
INTAKE MANIFOLD
GEAR CASE-BEARING HOUSING
BOTTOM COWLING
WATER PUMP INSTALLATION
BACKLASH SYSTEM
REVERSE GEAR
FORWARD GEAR
BRACKET UNIT
SWIVEL BRACKET
STEERING BRACKET
CLAMP BRACKET
RECOIL STARTER
ELECTRICAL SYSTEM
ELECTRICAL ANALYSIS
IGNITION SYSTEM
STARTING SYSTEM
CHARGING SYSTEM
WARNING SYSTEM
ELECTRICAL COMPONENTS
TROUBLE-SHOOTING
WIRING DIAGRAM
THIS MANUAL PRESENTED FOR YOU IN ELECTRONIC FORMAT YOU CAN JUST PRINT OUT THE PAGE YOU NEED THEN DISPOSE OF IT WHEN YOU HAVE COMPLETED YOUR TASK. THIS MANUAL HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP WRITTEN INSTRUCTIONS WITH THE NECESSARY DIAGRAMS OR PICTURES. THESE MANUALS ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION & SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANICS WORLDWIDE USED TO USE THIS FACTORY MANUAL TO FIX YOUR BIKE. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR VEHICLE WORKING PROPERLY. IT IS THIS LEVEL OF DETAIL, ALONG WITH ILLUSTRATED, THAT GUIDE THE READER THROUGH EACH SERVICE, REPAIR & MAINTENANCE PROCEDURE.
NOTE: I ALSO HAVE LOTS OF MANUAL WHICH ARE NOT ADVERTISED IN MY STORE, IF YOU NOT FOUND YOUR DESIRED MANUAL IN MY STORE, PLEASE MASSAGE ME AND I WILL TRY MY BEST TO PROVIDE YOU THAT MANUAL.
YAMAHA 20D 25N 20T 25T OUTBOARD MOTOR WORKSHOP SERVICE REPAIR MANUAL
THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS OPERATING SYSTEM
# ALL MAC OPERATING VERSION
YOU NEED THE ADOBE ACROBAT READER TO VIEW THE DOCUMENT AS THE MANUAL IS PDF FORMAT. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM Adobe Acrobat website
AS THIS MANUAL IS COMING TO YOU IN ZIP FORMAT, YOU NEED TO EXTRACT THE FILE BEFORE USE BY USING WINZIP OR WINRAR SOFTWARE. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM zip website
ENGINE COVERED:
395 cc 2-CYLINDER INLINE, 2-STROKE, WATER-COOLED
CONTENTS:
GENERAL INFORMATION
GENERAL PRECAUTIONS
SPECIFICATIONS
PERIODIC MAINTENANCE
SPECIAL TOOLS
TIGHTENING TORQUE
LUBRICATION CHART
FUEL SYSTEM
CARBURETOR SYSTEM
POWER UNIT
CYLINDER HEAD
CYLINDER BLOCK
CONTROL UNIT
PISTON-PISTON RING
PISTON PIN AND SMALL END BEARING
CRANKSHAFT-REED VALVE
THERMOSTAT-BALL BEARING
INTAKE MANIFOLD
GEAR CASE-BEARING HOUSING
BOTTOM COWLING
WATER PUMP INSTALLATION
BACKLASH SYSTEM
REVERSE GEAR
FORWARD GEAR
BRACKET UNIT
SWIVEL BRACKET
STEERING BRACKET
CLAMP BRACKET
RECOIL STARTER
ELECTRICAL SYSTEM
ELECTRICAL ANALYSIS
IGNITION SYSTEM
STARTING SYSTEM
CHARGING SYSTEM
WARNING SYSTEM
ELECTRICAL COMPONENTS
TROUBLE-SHOOTING
WIRING DIAGRAM
THIS MANUAL PRESENTED FOR YOU IN ELECTRONIC FORMAT YOU CAN JUST PRINT OUT THE PAGE YOU NEED THEN DISPOSE OF IT WHEN YOU HAVE COMPLETED YOUR TASK. THIS MANUAL HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP WRITTEN INSTRUCTIONS WITH THE NECESSARY DIAGRAMS OR PICTURES. THESE MANUALS ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION & SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANICS WORLDWIDE USED TO USE THIS FACTORY MANUAL TO FIX YOUR BIKE. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR VEHICLE WORKING PROPERLY. IT IS THIS LEVEL OF DETAIL, ALONG WITH ILLUSTRATED, THAT GUIDE THE READER THROUGH EACH SERVICE, REPAIR & MAINTENANCE PROCEDURE.
NOTE: I ALSO HAVE LOTS OF MANUAL WHICH ARE NOT ADVERTISED IN MY STORE, IF YOU NOT FOUND YOUR DESIRED MANUAL IN MY STORE, PLEASE MASSAGE ME AND I WILL TRY MY BEST TO PROVIDE YOU THAT MANUAL.
