2008–2009 Honda Sportrax TRX700XX ATV Service & Repair Manual

This Honda Motor Co., Ltd. service manual covers the 2008–2009 Honda Sportrax TRX700XX ATV with its liquid-cooled single-cylinder engine and PGM-FI fuel injection. It documents mechanical repair, chassis service, and electrical diagnosis for this model.

One 517-page PDF contains the English-language manual, from general information through the index.

• Engine repair: Engine removal and installation, valve-clearance adjustment, cylinder-head overhaul, piston inspection, crankcase separation, and crankshaft/balancer service.

• Transmission and drivetrain: Clutch rebuilds, gearshift linkage, reverse shifter, final reduction disassembly, transmission inspection, drive-chain replacement, and drive-shaft service.

• PGM-FI diagnosis: Fault-code and symptom troubleshooting, fuel-pressure and flow tests, injector inspection, throttle-body service, and sensor-circuit checks.

• Cooling and lubrication: Radiator testing, thermostat inspection, water-pump repair, oil-pump inspection, strainer cleaning, and lubrication-system service data.

• Chassis and brakes: Independent rear suspension, steering toe alignment, wheel-bearing replacement, hydraulic brake bleeding, master-cylinder repair, and caliper overhaul.

• Electrical repair: Alternator and charging-system tests, ignition diagnosis, starter-clutch service, starter-motor overhaul, relay checks, and wiring diagrams.

Written for qualified professional technicians with basic Honda ATV maintenance knowledge and the tools required for the procedures.

Engine, Clutch, and Transmission Repair

Internal engine work: Cylinder-head procedures include valve-guide replacement and valve-seat refacing, plus camshaft, rocker-arm, and decompressor inspection. Cylinder and piston measurement tables support top-end repair; crankshaft, balancer, and transmission sections address bottom-end disassembly and reassembly.

Teardown planning: The manual distinguishes in-frame clutch-disc service from clutch-outer, primary-drive-gear, and transmission work requiring engine removal. This helps you establish the necessary teardown scope before starting a clutch or gearbox repair.

PGM-FI Fault Codes and Throttle-Body Service

Diagnosis uses an HDS Pocket Tester or MIL blink codes, with separate fault-code and symptom troubleshooting. The PGM-FI System Diagram identifies ECM connections, while circuit-specific voltage, continuity, and resistance checks cover sensors including MAP, ECT, and TP.

Throttle-body coverage includes resetting the fully closed throttle position after sensor-unit removal and servicing the idle air control valve. The cleaning instructions warn that probing air passages or sensor holes with wire can damage the throttle body.

Water-Pump Repair and Oil-System Inspection

Cooling procedures cover radiator pressure testing, fan-motor drive-unit diagnosis, and water-pump mechanical-seal and bearing replacement. The cooling-system flow pattern identifies the coolant circuit.

The Lubrication System Diagram maps oil flow, alongside procedures for the oil pump, strainers, oil jet, and pressure-relief valve. Inspection tables provide component clearances and wear limits.

Independent Rear Suspension and Chain Drive

The chassis chapters cover double-wishbone rear suspension, knuckle bearings, suspension arms, stabilizer links, and steering geometry. Brake procedures extend from bleeding to master-cylinder and caliper disassembly, including the rear parking-brake mechanism.

Drive-shaft limits: Inboard CV-joint disassembly and boot replacement are covered; a worn or damaged outboard joint requires drive-shaft replacement. Drive-chain maintenance also explains how worn sliders can damage the chain and frame.

Charging, Ignition, and Starting Faults

Electrical tests cover current leakage, alternator output, regulator/rectifier circuits, and ignition-coil and CKP-sensor peak voltage. Starter-motor repair includes armature and brush inspection, supported by the Electric Starter System Diagram and neutral/clutch interlock checks.

The reverse gear speed restriction system is explained through its ECM control, vehicle-speed sensor, and reverse-switch inputs. General troubleshooting charts address hard starting, power loss, poor idle, and handling complaints.

Identification, Maintenance, and Workshop References

Model-identification pages locate VIN and engine numbers and identification labels. Torque tables cover engine, frame, and exhaust fasteners; other reference data includes valve clearances, fluid capacities, lubrication points, and battery charging current.

Maintenance schedules distinguish mileage, operating-hour, and calendar intervals for oil changes, chain lubrication, and coolant replacement. Cable & Harness Routing diagrams, emission-control routing views, and exploded mechanical illustrations support component identification and reassembly.

Wear appropriate safety gear and consult a qualified technician before undertaking major mechanical work or applying workshop specifications.

PDF Navigation and Wiring-Label Readability

The total includes four opening pages—cover, safety notes, contents/how-to-use guidance, and symbols—plus ten memo pages. PDF text search is unavailable; 25 embedded bookmarks link to the contents and all 24 numbered sections, including the index. Small wire codes, connector pin numbers, and ECM terminal labels in the two-page Wiring Diagram are partly blurred even when enlarged.