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Yamaha YFM 400 FWA P User Manual

Yamaha YFM 400 FWA P
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YFM400FWA
(
P
)
5GH3-AE2
SUPPLEMENTARY
SERVICE MANUAL
2002
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Yamaha YFM 400 FWA P Specifications

General IconGeneral
BrandYamaha
ModelYFM 400 FWA P
CategoryOffroad Vehicle
LanguageEnglish

Summary

GENERAL SPECIFICATIONS

ENGINE MAINTENANCE SPECIFICATIONS

Cylinder and Piston Specifications

Provides detailed measurements for cylinder bore, taper, roundness, and piston clearance.

DRIVETRAIN AND CARBURETOR SPECIFICATIONS

ELECTRICAL SPECIFICATIONS

PERIODIC CHECKS AND ADJUSTMENTS INTRODUCTION

PERIODIC MAINTENANCE NOTES

ADJUSTING THE REAR BRAKE LIGHT SWITCH

Rear Brake Light Switch Adjustment

Details the procedure to check and adjust the rear brake light switch timing for proper operation.

ENGINE - CYLINDER HEAD INSTALLATION

Cylinder Head and Bolt Installation

Step-by-step guide for installing the cylinder head and tightening its bolts with specified torque.

Camshaft Sprocket and Timing Alignment

Instructions for installing the camshaft sprocket and aligning timing marks on the crankshaft and rotor.

ENGINE - TIMING CHAIN TENSIONER INSTALLATION

Camshaft Sprocket and Timing Chain Alignment

Details on aligning camshaft sprocket punch mark with cylinder head match mark and meshing the timing chain.

Timing Chain Tensioner Installation

Guide for removing and installing the timing chain tensioner, including gasket replacement.

ENGINE - CAMSHAFT SPROCKET TIGHTENING AND CHECK

Tightening Camshaft Sprocket Bolt

Instructions for tightening the camshaft sprocket bolt using a rotor holder for support.

Final Alignment Check

Verifies alignment of camshaft sprocket punch mark and rotor "T" mark, with guidance for adjustment.

RECOIL STARTER AND CDI MAGNETO - REMOVAL

RECOIL STARTER AND CDI MAGNETO - PARTS

TRANSMISSION - REMOVAL AND PARTS

TRANSMISSION - ADDITIONAL PARTS

ELECTRICAL SYSTEM - ELECTRIC STARTING SYSTEM

Electric Starting System Circuit Diagram

Presents the electrical schematic for the electric starting system, detailing component connections.

ELECTRIC STARTING SYSTEM - TROUBLESHOOTING

Starter Motor Failure Troubleshooting

Provides a step-by-step troubleshooting guide for when the starter motor fails to operate.

ELECTRIC STARTING SYSTEM - COMPONENT CHECKS

Starter Motor and Relay Testing

Explains how to test the starter motor operation and the starter relay for continuity.

ELECTRIC STARTING SYSTEM - SWITCH CHECKS AND WIRING

Engine Stop, Neutral, and Brake Switch Checks

Details checks for engine stop, neutral, rear brake, and park switches for proper function.

Start Switch and Wiring Connection Checks

Guides on checking the start switch and overall wiring connections for the starting system.

ELECTRICAL SYSTEM - SIGNAL SYSTEM

Signal System Circuit Diagram

Presents the electrical schematic for the signal system, illustrating all related components and connections.

SIGNAL SYSTEM - COMPONENT LIST

CHECKING THE SIGNAL SYSTEM - TAIL/BRAKE LIGHTS

Tail/Brake Light Failure Diagnosis

Provides steps to diagnose issues with the tail/brake lights, checking bulbs, sockets, and switches.

CHECKING THE SIGNAL SYSTEM - REVERSE INDICATOR

Reverse Indicator Light Failure Diagnosis

Outlines troubleshooting steps for the reverse indicator light, including bulb, socket, and switch checks.

YFM400FWA(P) 2002 WIRING DIAGRAM

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