1997 Ski-Doo Tundra II LT, Touring, Formula, Skandic, MX Z, Summit, Grand Touring & Mach Snowmobile Service Manual Set (P/N 484 0647 00)

This 1997 Ski-Doo Snowmobile Service Manual Set combines Bombardier Shop Manual Volumes 1–3 (P/N 484 0647 00, 484 0647 01, and 484 0647 02) with the MX Zx 440 LC and Grand Touring SE supplements. Coverage spans the listed Tundra, Touring, Formula, Skandic, MX Z, Summit, Grand Touring, and Mach models.

• Engine repair: Engine removal, top-end service, crankcase disassembly, crankshaft inspection, leak testing, and RAVE exhaust-valve service on applicable engines.

• Fuel and cooling: Mikuni carburetor adjustment and synchronization, fuel-pump testing, oil-injection service, fan cooling, and liquid-cooling and rotary-valve procedures.

• Clutches and gearboxes: Bombardier Lite and TRA drive-pulley service, driven-pulley inspection, alignment, chaincase work, and model-specific gearbox disassembly and adjustment.

• Brakes and running gear: Mechanical and hydraulic disc-brake service, brake bleeding, drive-axle work, track replacement, tensioning, and alignment.

• Suspension and steering: Torque Reaction, SC-10, and Skandic WT suspension service, HPG shock rebuilding, steering inspection, and ski alignment.

• Electrical troubleshooting: Nippondenso and Ducati ignition tests, timing checks, charging-system diagnosis, electric-starter repair, connector references, and model-specific wiring diagrams.

• Grand Touring SE systems: DESS diagnosis, Digital Performance Management testing, air-suspension checks, and heated-control and headlamp-dimmer circuit tests.

These manuals were written for snowmobile mechanics already familiar with Bombardier service procedures and equipped with the specified hand tools and special service tools.

Engine Rebuilding and Leak Diagnosis

Volume 1 covers the 277, 377, 443, and 503 engines. The other volumes add liquid-cooled rotary-valve twins and the 599, 699, and 809 triples, with separate top-end and bottom-end procedures.

The Engine Leak Verification Flow Chart helps distinguish leakage at crankcase joints and seals from faults in the applicable oil-injection, rotary-valve, and cooling circuits before major teardown. Measurement sections cover cylinder wear, internal clearances, crankshaft deflection, and connecting-rod inspection.

RAVE coverage extends to exhaust-valve removal, passage inspection, and bellows checks. Component torque callouts accompany the assembly views, backed by 8.8-grade fastener tables covering M4–M14 hardware.

Carburetion, Lubrication, and Cooling

Carburetor Float Level Adjustment views support the Mikuni service procedures, while synchronization instructions distinguish side-specific carburetor settings. Fuel-pump inspection, rewind-starter repair, oil-line bleeding, and oil-pump bench checks are also covered. The oil-pump adjustment section warns that delayed pump opening can cause serious engine damage.

Cooling coverage distinguishes the Tundra's radial fan from axial-fan systems and liquid-cooled installations. Rotary-valve timing, coolant-pump seals, thermostat testing, and cooling-system leak checks receive their own procedures.

For altitude-specific carburetor and clutch calibrations, the manuals refer to a separate High Altitude Technical Data booklet; that booklet is not included in this set.

The MX Zx 440 LC supplement documents premix lubrication in place of oil injection, its parallel radiator arrangement, lighter drive pulley, and racing brake components. Its additional procedures work with the included Volume 2.

Pulley, Gearbox, and Brake Service

The Pulley Alignment and Distance Specifications Chart identifies the appropriate alignment templates. TRA instructions address governor-cup indexing and prohibit impact-wrench use; specified equipment includes clutch holder P/N 529 0064 00 and spring compressor P/N 529 0151 00.

Gearbox chapters distinguish the Touring SLE, Skandic 380/500, and Grand Touring units from the Skandic WT/SWT/WT LC design. Internal coverage includes bearings, gears, shafts, shift mechanisms, and reassembly checks. Brake sections separate mechanical adjustment from hydraulic caliper service and bleeding.

Suspension, Steering, and Body Work

SC-10 sections distinguish Sport, Touring, Mountain, XC, and HP configurations. HPG shock procedures cover shim packs, floating-piston positioning, seals, and nitrogen charging; the MX Zx supplement adds remote-reservoir service. Incorrect SC-10 spring-support orientation can damage the track.

Steering coverage separates toe-out adjustment from the nonadjustable camber described for Volume 1 models. Body/frame sections cover R.I.M. polyurethane repair, material compatibility, and frame-component replacement.

Running-track tests and pressurized shock work require the guarding, vehicle support, and pressure-control precautions specified in the manuals.

Ignition Diagnosis and Grand Touring SE Controls

Electrical sections pair ignition and charging tests with wire-color references and connector views. Starter coverage includes disassembly, inspection, and reassembly.

The Grand Touring SE supplement adds MPEM and DESS circuit checks, DPM pump and solenoid tests, temperature-sensor checks, and air-suspension leak diagnosis. Its Overall System Operation diagram explains DPM bowl-pressure control, while Connector Location in Housing views support circuit tracing. Heating/dimmer intensity-control module coverage is testing and replacement; the module is not repairable.

A Preview of Engine Torque and Wear Data

The values below are a small sample of the engine torque and wear-limit data in these manuals.

For cold engines, the cylinder-head nut specification is 26 N·m (19 lbf·ft) for the 277 and 22 N·m (16 lbf·ft) for the 377, 443, and 503.

The connecting-rod big-end axial-play wear limit is 1.00 mm (.039 in) for those four engine types. The measurement section distinguishes that rejection limit from the new-parts range.

Text Search, Wiring Detail, and Included Publications

Search, bookmarks, and diagram detail: The PDF is partly searchable: the main chapters contain embedded text, while many wiring-annex pages do not. Embedded bookmarks reach the three volumes, major sections, and supplement openings. Small wire-color and connector labels require zooming.

The set is supplied as one printable, English-language, 918-page PDF, divided as follows:

These counts include all five outer covers, front matter, and wiring annexes.