Tohatsu TLDI 40 50 HP Outboard Service Manual | 2000-2004

Complete OEM factory service manual for the Tohatsu TLDI 40A and 50A outboard motors, covering all EPTO, EFTO, and EFO variants across the 2000-2004 model range. Use it to service, repair, and overhaul the powerhead, fuel injection system, lower unit, electrical system, air compressor, trim and tilt, and more. Delivered instantly as a fully searchable PDF compatible with any device.

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• Fully searchable
• Easily print any or all content
• Everything needed to repair & maintain your outboard motor
• Troubleshooting instructions, wiring diagrams, and reference material

• Tohatsu TLDI 40A EPTO
• Tohatsu TLDI 40A EFTO
• Tohatsu TLDI 40A EFO
• Tohatsu TLDI 50A EPTO
• Tohatsu TLDI 50A EFTO
• Tohatsu TLDI 50A EFO

• Specifications
• Specifications Table
• Outline Dimensions
• External Dimensions
• Background on TLDI
• Two-Stroke Low-Pressure Direct Injection (TLDI)
• ECU Control
• Crank-Position Sensor (CPS)
• Long-duration CDI (L-CDI)
• Throttle-Position Sensor (TPS)
• Water-Temperature Sensor (WTS)
• Fuel Supply System
• Air Supply System Diagram
• Oil Supply System Diagram
• Servicing Information
• General Precautions for Servicing
• Specifications and Standards Used in Servicing
• Lists of Points for Applying Sealant, Adhesive and Lubrication
• Torque Table
• Special Tools
• Inspection and Maintenance
• Periodic Inspections
• Inspecting Engine Oil Systems
• Inspecting Compression System
• Cleaning Fuel Tank
• Inspecting Gear Case Area
• Replacing Gear Oil
• Replacing Propeller
• Inspecting Cooling System
• Replacing Pump Impeller
• Thermostat Test
• Inspecting Air Rail Pressure
• Inspecting Power Trim and Tilt System
• Disassembling, Inspecting and Reassembling Power Unit
• Removing and Reassembling Power Unit
• Electrical System
• Removing CPS, Flywheel and Alternator
• Removing ECU and Harness Assembly
• Removing Ignition Coil and Rectifier Regulator
• Air Supply System
• Inspecting and Removing Air Compressor
• Air Compressor Configuration and Assembly
• Disassembling and Assembling Air Rail
• Fuel System
• Disassembling and Assembling Vapor Separator
• Disassembling and Assembling FFP Assembly
• Disassembling Oil Pump and Oil Tank
• Throttle Mechanism
• Disassembling and Assembling TPS
• Disassembling and Assembling Air Box and Throttle Body
• Disassembling Engine Block
• Cylinder and Crankcase Assembly
• Piston and Crankshaft Service
• Inspecting Engine Components
• Assembling Short Block
• Assembling Crankshaft and Crankcase
• Assembling Cylinder Head and Exhaust Cover
• Installing and Inspecting Electrical Components
• Wire Routing and Wiring Diagrams
• Flywheel Magneto Inspection
• Rectifier Regulator Inspection
• Starter Motor Inspection
• Disassembly, Inspection and Reassembly Lower Unit
• Gear Case Diagrams and Configuration
• Lower Unit Disassembly
• Lower Unit Inspection
• Lower Unit Reassembly
• Assembling Water Pump
• Power Trim and Tilt Configuration
• Power Trim and Tilt Troubleshooting
• Disassembly and Assembly of Power Trim and Tilt
• Tiller Handle Type Installation
• Troubleshooting Tables
• TLDI Self-Diagnosing Functions
• Self-Diagnosing Function Procedures
• Fault Indication Table
• Resetting TPS Initial Values
• Test Run and Inspection After Servicing
• Breaking in Engine
• Installation on Boat and Test Run
• Remote Control System Installation
• Gauges and Battery Installation
• Wiring Diagram for Remote Control Unit and Gauges
• Operating the Engine
• Starting Procedure
• Force-Feeding Fuel and Engine Oil

• Complete engine disassembly and assembly procedures
• Fuel and carburetor system diagnostics and repair
• Electrical, ignition, and charging system procedures
• Cooling system inspection and maintenance
• Gearcase, driveshaft, and propeller shaft service
• Steering, throttle, and control linkage adjustments
• Control linkage adjustments
• Troubleshooting charts and fault codes
• OEM specifications and torque tables
• High-resolution wiring and system diagrams

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