This workshop service repair manual covers Yamaha outboard motors, specifically models such as the F20MH, F20EH, F20E, F20ET, F25MH, F25EH, F25EHT, F25E, F25ET, F25TH, F25ER, and F25TR. These portable, mid-power outboards feature 4-stroke, 2-cylinder inline engines with a displacement of 498 cc, delivering a power output ranging from 20 to 25 HP. Engineered for reliability and performance, these water-cooled engines utilize an OHC valve train and are designed for a variety of marine applications.
This comprehensive manual provides detailed information essential for the maintenance, repair, and troubleshooting of your Yamaha outboard motor. It includes procedures for periodic maintenance, lubrication charts, water pump installation, and in-depth guidance on various systems such as the fuel system, electrical system, ignition system, starting system, and charging system. Furthermore, the manual details the repair and installation of numerous components, including the power unit, cylinder head, crankshaft, gear case, and power trim and tilt unit, alongside specifications for tightening torques and special tools required for servicing.
YAMAHA F20A F25A F25X OUTBOARD MOTOR WORKSHOP SERVICE REPAIR MANUAL
MODEL COVERED: 4 STROKE PORTABLE & 4 STROKE MID POWER
F20MH, F20EH, F20E, F20ET, F25MH, F25EH, F25EHT
F25E, F25ET, F25MH, F25EH, F25TH, F25ER, F25TR
ENGINE COVERED:
498 cc 2-CYLINDER INLINE, 4-STROKE, WATER-COOLED, OHC
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
CRANKSHAFT-REED VALVE
THERMOSTAT-BALL BEARING
GEAR CASE-BEARING HOUSING
FLYWHEEL MAGNETO
PROPELLER SHAFT HOUSING
BOTTOM COWLING
WATER PUMP INSTALLATION
BACKLASH SYSTEM
INTAKE MANIFOLD
STATOR AND TIMING BELT
FORWARD GEAR
STEERING FRICTION
POWER TRIM AND TILT (PTT) UNIT
PTT MOTOR, PUMP HOUSING,
TILT CYLINDER-TILT ROD
TILLER HANDLE
BRACKET UNIT
SWIVEL BRACKET
STEERING ARM
CLAMP BRACKET
DRIVE SHAFT
RECOIL STARTER
ELECTRICAL SYSTEM
ELECTRICAL ANALYSIS
IGNITION SYSTEM
STARTING SYSTEM
CHARGING SYSTEM
ENRICHMENT CONTROL SYSTEM
ELECTRICAL COMPONENTS
TROUBLE-SHOOTING
WIRING DIAGRAM
THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS VERSION
# ALL MAC 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 WINZIP WEBSITE
THIS IS A VERY COMPREHENSIVE AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.
YAMAHA F20A F25A F25X OUTBOARD MOTOR WORKSHOP SERVICE REPAIR MANUAL
MODEL COVERED: 4 STROKE PORTABLE & 4 STROKE MID POWER
F20MH, F20EH, F20E, F20ET, F25MH, F25EH, F25EHT
F25E, F25ET, F25MH, F25EH, F25TH, F25ER, F25TR
ENGINE COVERED:
498 cc 2-CYLINDER INLINE, 4-STROKE, WATER-COOLED, OHC
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
CRANKSHAFT-REED VALVE
THERMOSTAT-BALL BEARING
GEAR CASE-BEARING HOUSING
FLYWHEEL MAGNETO
PROPELLER SHAFT HOUSING
BOTTOM COWLING
WATER PUMP INSTALLATION
BACKLASH SYSTEM
INTAKE MANIFOLD
STATOR AND TIMING BELT
FORWARD GEAR
STEERING FRICTION
POWER TRIM AND TILT (PTT) UNIT
PTT MOTOR, PUMP HOUSING,
TILT CYLINDER-TILT ROD
TILLER HANDLE
BRACKET UNIT
SWIVEL BRACKET
STEERING ARM
CLAMP BRACKET
DRIVE SHAFT
RECOIL STARTER
ELECTRICAL SYSTEM
ELECTRICAL ANALYSIS
IGNITION SYSTEM
STARTING SYSTEM
CHARGING SYSTEM
ENRICHMENT CONTROL SYSTEM
ELECTRICAL COMPONENTS
TROUBLE-SHOOTING
WIRING DIAGRAM
THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS VERSION
# ALL MAC 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 WINZIP WEBSITE
THIS IS A VERY COMPREHENSIVE AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.
