2008 Arctic Cat AC 120, Bearcat W/T, Panther 660, T660, Jaguar Z1 & TZ1 4-Stroke Snowmobile Service Manual (P/N 2259-007)

This 2008 Arctic Cat 4-Stroke Snowmobile Service Manual covers the AC 120, Bearcat W/T, Panther 660, T660, Jaguar Z1/Sno Pro, and TZ1/LXR. Separate engine sections address the 120 cc, 660 cc non-turbo/turbo, and 1100 cc platforms.

Supplied as one 490-page PDF in English.

• Engine repair: Engine removal, teardown, component inspection, bearing selection, reassembly, cam timing, valve adjustment, and engine troubleshooting.

• Cooling and lubrication: Cooling-system filling, thermostat inspection, water-pump service, oil-pressure testing, and oil-pump/pressure-relief-valve service.

• Fuel and EFI: AC 120 carburetor overhaul, throttle-body service, throttle position sensor checks and adjustment, fuel-pump replacement, and diagnostic code charts.

• Electrical diagnosis: Starter and charging-system tests, starter-motor and alternator repair, CCU codes, reverse-actuator checks, and model-specific wiring diagrams.

• Drive train and brakes: Clutch and driven-pulley service, alignment and belt-deflection adjustment, chain-case and Z1 gear-case repair, caliper service, and brake bleeding.

• Track, suspension, and steering: Skid-frame repair, track tension and alignment, Fox shock rebuilding, steering-component inspection, and ski alignment.

This manual is suited to experienced mechanics comfortable with engine measurements and electrical testing, with access to the specified pullers, gauges, and test equipment.

Engine Repair and Service Specifications

The engine sections include piston and cylinder inspection, crankshaft measurements, and bearing selection. The 1100 cc procedures extend to balancer alignment and valve-shim selection; the 660 cc material distinguishes turbo and non-turbo camshafts and valve-clearance specifications.

Tolerance charts cover cam lobe height, crankshaft runout, piston-pin fits, and valve stem-to-guide clearances. Assembly schematics and 15 engine torque-pattern diagrams support reassembly, including cylinder-head, crankcase, oil-pan, and intake-manifold work.

VIN and engine serial number identification, break-in checks, storage preparation, and high-altitude clutching guidance are included. Carburetor jet-selection guidance applies to the 120 cc engine.

Cooling, Lubrication, and Turbocharger Service

Cooling System Flow/Component Schematics and Oil Flow Charts show the 660 cc and 1100 cc circuits. Related procedures cover compression testing and coolant filling.

Accessory-belt adjustment is documented for the 660 cc engine. The 1100 cc water-pump section includes bearing and seal replacement.

The 660 cc turbo material covers turbocharger/intercooler removal and installation, with separate air-silencer procedures. The manual warns that spinning the turbocharger with compressed air can damage its bearings.

EFI Diagnosis and Electrical Repair

The code charts distinguish 660 cc check-engine-light flash codes from 1100 cc ECU display codes. Electrical coverage extends to charging components, ignition circuits, grip heaters, seat-heater switches, and reverse controls.

TPS procedures identify the TPS Adjustment Tool Kit P/N 3639-891 and Multi-TPS Test Harness P/N 1686-436. Wiring references include the Jaguar Z1 Ignition/Main Harness and the TZ1 LXR Hood Harness X, with connector views and wire-color identification.

Diagnostic scope: Certain EFI component tests are referred to the separate Arctic Cat Diagnostic System Manual, P/N 2256-974, or Laptop Diagnostic Tool, P/N 0744-048. That separate diagnostic manual and the diagnostic equipment are not included in this PDF.

Clutch, Drive Train, and Brake Service

Conventional driven-pulley procedures for the non-turbo Bearcat W/T, Panther 660, and T660 are separated from ACT Roller Driven Pulley procedures for the Bearcat W/T Turbo and Z1 models. This distinction helps you select the correct alignment and belt-deflection procedures when investigating poor engagement or belt wear.

Chain-case reverse-linkage adjustment and Z1 ACT gear-case disassembly are covered separately. A Z1-specific caution explains that driven-pulley float can damage the pulley. Brake coverage distinguishes the AC 120 band brake from the hydraulic systems on larger models.

Track, Suspension, and Chassis Repair

The Servicing Chart assigns four track/rear-suspension repair procedures by model. Skid Frame Mounting Schematics accompany the work, including Bearcat W/T articulating-suspension service.

Fox air-shock and Zero Pro procedures cover disassembly, rebuilding, bleeding, and recharging. Chassis work includes tie rods, drag links, suspension arms, the Z1 front-suspension mounting bracket, and body-panel removal.

Follow the manual's workshop safety requirements, particularly for pressurized fuel systems, spring-loaded clutch components, and nitrogen-charged shocks.

File Format and Readability

The total includes 471 service-manual pages plus 19 wiring-diagram pages; those wiring pages are already included in the stated page count. The file starts at Section 1 and has no separate cover or foreword.

Text search: Service text and wiring-diagram titles are searchable; labels within the wiring drawings are not.

Navigation: Embedded PDF bookmarks lead to all eight service sections and the wiring diagrams.

Wiring readability: Small connector numbers and wire-color labels require zooming for comfortable reading.