2005 Polaris 500 XC SP, 600 XC SP, 700 XC SP, 800 XC SP & 900 Fusion Snowmobile Performance Service Manual (P/N 9919303)

The 2005 Polaris Performance Service Manual, P/N 9919303, covers the 500 XC SP, 600 XC SP, 700 XC SP, 800 XC SP, and 900 Fusion. This factory publication, copyright 2004, separates the carbureted Liberty engines and EDGE chassis from the Fusion’s Clean Fire Injection and IQ systems.

• Engine repair: Engine removal, crankcase disassembly and assembly, piston and cylinder inspection, crankshaft indexing and truing, and water/oil-pump service.

• Fuel delivery: Mikuni TM carburetor rebuilding, throttle synchronization, jetting charts, fuel-system troubleshooting, and Fusion fuel-rail, injector, and TPS procedures.

• Clutching and final drive: P-85 inspection and spider indexing, TEAM driven-clutch service, belt diagnosis, clutch alignment, chaincase bearings, and shaft removal.

• Brakes and steering: Hydraulic bleeding, Hayes master-cylinder cartridge replacement, brake-pad service, spindle bushings, camber adjustment, and ski alignment.

• Suspension: EDGE and M-10 setup, rear-suspension removal, Hi-Fax replacement, shock-valving charts, and FOX, Ryde FX, and Walker Evans rebuilding.

• Electrical diagnosis: Ignition and starting-system tests, Fusion sensor specifications, ECU connector tables, Digital Wrench connections, and XC SP/Fusion wiring diagrams.

Written primarily for certified Polaris snowmobile service technicians, this manual assumes mechanical knowledge, tool experience, and a properly equipped shop.

Liberty Engine Inspection and Repair

Separate engine sections cover the small-block, large-block, and Fusion assemblies, including stator/recoil removal, crankcase separation, piston installation, and pump components. Cylinder-honing guidance distinguishes light deglazing of Nikasil cylinders from the oversize-honing procedures identified for Fuji engines.

Crankshaft indexing, bearing inspection, and truing information supports investigation of unexplained vibration or repeated cylinder-specific failures. Illustrated torque patterns accompany the engine specifications.

Cooling and lubrication coverage includes thermostat replacement, cooling-system bleeding, oil-pump adjustment, and Fusion oil-line bleeding during engine assembly. Recoil-starter servicing and separate EDGE/Fusion exhaust-valve procedures address additional maintenance work.

Carburetion and Fusion Injection Diagnostics

Temperature-and-altitude jetting charts accompany the carburetor sections. Troubleshooting is organized by symptoms and throttle opening, helping distinguish a pilot-circuit problem from a main-jet or fuel-supply fault.

The Fusion material includes fuel-pressure checking and depressurization with tool PV-43506-A, injector identification matched to the ECU, and TPS testing with kit 2201519. The in-tank fuel pump is treated as non-serviceable; the documented failure remedy is replacement of the tank assembly.

Clutch Calibration and Chaincase Service

Spring and weight tables, helix information, belt-wear diagnosis, and torque-stop adjustment support drivetrain setup. The P-85 exploded view and chaincase assembly drawing show the components involved in clutch and final-drive work.

The manual warns that impact-wrench use during drive-clutch removal can damage the clutch or crankshaft. It also restricts clutch maintenance and repair to appropriately trained, authorized Polaris personnel using the specified tools.

Brake, Steering, and Suspension Work

Hayes master-cylinder coverage extends to cartridge, lever, and parking-brake components. The brake section distinguishes Fusion fluid requirements from the other applications.

Steering material includes spindle centering, rod-end engagement, camber, toe, and IQ control-arm replacement. EDGE and M-10 suspension troubleshooting addresses bottoming, harsh ride, darting, and steering behavior.

Shock sections provide production valving, internal floating-piston settings, inspection criteria, and rebuilding procedures. The FOX remote-reservoir instructions warn that excessive piston-locknut torque can damage the piston valves. Fuel-system, brake, and nitrogen-charged shock work requires the corresponding factory safety precautions.

Electrical Tests and Diagram References

No-spark and incorrect-timing charts accompany starter, charging, switch, and TPS tests. Fusion coverage adds detonation control, crank-position sensing, exhaust-valve solenoid operation, and ECU pin assignments.

Illustrations include the Mikuni TM38/40 exploded view, oil/water-pump cross section, P-85 assembly view, ECU Plug Connection #2, and Fusion hood/chassis wiring sheets. Digital Wrench port information identifies diagnostic, ECU-power, lighting-test, and fuel-pump-prime connections.

A Sample of Water-Pump Belt Inspection Data

The following is a small selection of the maintenance specifications in the manual. For the 700/800 Liberty water-pump belt, nominal new width is .345 in (8.75 mm); replacement is specified when width falls below .250 in (6.35 mm).

These figures belong to the water-pump belt inspection material, which also covers belt condition and deflection testing.

Searchable Service Text and Wiring-Sheet Detail

Search, bookmarks, and diagram detail: Service text is searchable, and embedded PDF bookmarks provide chapter and topic navigation. Wiring-sheet labels are largely outside the searchable text. Small connector and wire labels require zooming; the additional earlier wiring sheet is particularly pale and remains low-contrast when enlarged.

The download contains one printable, English-language, 320-page PDF. The total already includes the covers, notes pages, index, and an additional earlier wiring sheet preceding the model-specific wiring section.