2002 Bombardier Sea-Doo GTX DI & GTX 4-TEC Personal Watercraft Shop Manual, Volume 2 (219 100 153)

This 2002 Bombardier Sea-Doo Shop Manual, Volume 2, covers GTX DI and GTX 4-TEC personal watercraft, including the listed International variants. The cover reference is 219 100 153.

• Engine repair: Separate 947 DI and 1503 4-TEC procedures cover engine removal, leak testing, internal inspection, reassembly, magneto components, and exhaust systems.
• Fuel and air delivery: Injector checks, fuel pressure regulator diagnosis, throttle body service, and DI air compressor inspection address the different injection systems.
• Electronic controls: MPEM, EMS ECU, DESS, TOPS, and sensor testing are covered alongside VCK connections, B.U.D.S. diagnostics, and throttle position resets.
• Cooling and lubrication: DI water circuits and oil injection are treated separately from 4-TEC engine cooling, exhaust cooling, coolant pump, and lubrication service.
• Propulsion and steering: Jet pump overhaul, engine-to-pump alignment, drive shaft and carbon ring inspection, reverse cable adjustment, and O.P.A.S. service are included.
• Maintenance and bodywork: Periodic inspection charts, flushing, storage, water-flooded engine recovery, hull repairs, and body adjustments support routine service and damage assessment.

The manual was written for watercraft mechanical technicians already familiar with Bombardier service procedures. It assumes appropriate hand tools and special service equipment; follow its safety notices and standard shop practices throughout the work.

Engine Inspection and Rebuild Coverage

DI procedures cover the top end, bottom end, RAVE exhaust valves, and magneto assembly. The engine leakage diagnostic flowchart helps locate leakage before disassembly, supporting a decision about which assembly needs attention.

The 4-TEC chapters address the cylinder head, camshaft, hydraulic valve gear, crankshaft, balance shaft, pistons, and engine block. Connecting rod screws require replacement at each assembly because the previous installation stretches them.

DI crankshaft inspection is included, but defective crankshafts or their components are directed to a specialized repair shop or replacement.

Fuel Delivery and Electronic Fault Diagnosis

The DI fuel delivery diagnostic flowchart separates checks of the fuel pump, air compressor, and pressure regulators. Throttle body synchronization and closed-TPS reset procedures accompany injector, ignition, and sensor tests.

MPEM and EMS ECU procedures explain diagnostic connections and component replacement, with VCK and B.U.D.S. used for electronic tests and adjustments. DI fault-code and component-failure warning charts, 4-TEC onboard diagnostics, DESS checks, and the TOPS diagnostic flowchart address warning indications and reduced-power operation.

Cooling Circuits and Lubrication Service

Cooling circuit illustrations distinguish the DI open system from the 4-TEC closed engine loop and open exhaust loop. Coverage includes the water flow regulator, ride-plate heat exchanger, thermostat, coolant replacement, and oil cooler.

DI oil injection pump synchronization and bleeding are separate from 4-TEC oil pressure testing and oil service. The 4-TEC coolant pump's ceramic rotary seal can be damaged by hammer impact during installation.

Jet Pump, Drive Shaft and O.P.A.S.

Model-specific exploded views accompany jet pump disassembly, bearing and seal inspection, wear-ring checks, and pressure testing. The procedures distinguish the DI pump's oil lubrication from the 4-TEC pump's greased bearings.

Engine-to-pump alignment, drive shaft inspection, carbon ring sealing, and reverse gate adjustment extend the drivetrain coverage. Steering service includes cables, nozzle alignment, and the O.P.A.S. side vanes, cylinders, tie rods, filter, and valve.

Maintenance, Hull Repair and Electrical References

Water-flooded engine recovery is separated by engine type, including 4-TEC oil removal and boil-out procedures. Maintenance charts, mandatory and optional tool lists, and service product references accompany flushing and storage instructions.

Hull and body sections cover storage compartments, seats, sponsons, gelcoat, and fiberglass repairs. Charging and starting diagnostics, instrument checks, connector pin-out views, wiring diagrams, and an abbreviation list support electrical troubleshooting.

Selected Engine, Cooling and Fuel Specifications

A small selection of the manual's specifications shows how the reference data is assigned to particular systems. The GTX DI engine displacement is 951.2 cm³, while the GTX 4-TEC closed-loop cooling system has a total coolant capacity of 5.5 L.

For the GTX DI quick fuel pressure test, the specified reading while cranking or running is 738 ± 14 kPa (107 ± 2 psi). This is a fuel-system test value, separate from the preliminary regulator check with the engine stopped.

PDF Search, Navigation and Page Count

Finding procedures and tracing circuits: Most body text is searchable, but the covers and some diagram lettering are not. Embedded bookmarks are only partly usable because many chapter links point to separate PDF files. Small wire-color codes and connector labels in the wiring diagrams are clearly readable when enlarged.

Supplied as one printable, English-language PDF containing 505 pages, including the front and back covers and wiring-diagram divider pages. This file contains Shop Manual, Volume 2, as a single publication.