1993–1997 Yamaha Wave Blaster / Wave Blaster 2 PWC Service & Repair Manual Set (P/N GA7/62E)

Use the WB700A supplement alongside the Wave Blaster base procedures. The WB760 publications contain their own service chapters, including the trim-system material in the WB760V manual.

The fiberglass repair sections include repair examples and refer to the separate Water Vehicle FRP Repair Manual for further detail.

Printable PDF, Bookmarks and Page Organization

Search, navigation and wiring detail: Repair pages are not text-searchable. Embedded bookmarks provide access to the manuals and chapters, although some open contents or inserted pages. Small wiring labels are best viewed enlarged. The base manual’s final troubleshooting pages appear at PDF pp. 506–507.

This English-language, printable 507-page PDF contains the four publications above plus 19 additional pages, already included in the total: four compilation covers and 15 storage pages comprising three copies of the same five-page section.

Engine, Fuel and Jet-Pump Service

The following selected contents outline the main workshop coverage. Additional topics include storage preparation and graphic replacement.

• Power-unit repair: Step-by-step procedures for engine removal, reed-valve service, piston and ring inspection, crankcase separation, and crankshaft checks.

• Carburetor service: Disassembly and reassembly, throttle and choke valve synchronization, fuel-pump inspection, and filter checks.

• Oil injection: Oil-pump removal and inspection, system air bleeding, oil-hose routing, and check-valve inspection.

• Jet-pump overhaul: Impeller and drive-shaft service, intermediate-housing disassembly, bearing installation, and coupling-alignment checks.

• Electrical diagnosis: CDI ignition, starting, charging, and warning-display tests, supported by wiring diagrams and troubleshooting charts.

• Hull and controls: Steering and control-cable service, hood and deck work, fiberglass repair examples, and WB760V trim-system adjustment.

Yamaha describes these as procedures for its dealers and mechanics; internal-engine and electrical work calls for workshop skills and the specified tools.

Internal Engine Inspection and Reassembly

The power-unit chapters cover cylinder-head water-jacket inspection, bore and piston-clearance measurement, piston-pin assessment, and crankshaft bearing and oil-seal work. Component-specific torque tables include staged tightening requirements rather than a single setting for every assembly.

Special-tool references identify the pullers, holders, gauges, and bearing attachments used for the work. The WB760 flywheel section warns that uneven puller loading can damage the engine or tools.

Carburetor and Oil-System Details

Diaphragm, float-arm, and needle-valve inspections establish the depth of the carburetor coverage. Identification marks and front/rear jetting data provide a reference for matching the setup to the assembly being serviced.

Carburetor cautions explain that steel-wire cleaning can enlarge the jets and affect performance. Oil-system sections distinguish pump and hose inspection from the air-bleeding procedure required after system disassembly or oil depletion.

Propulsion, Routing and Trim Controls

Drive-shaft and intermediate-housing sections specify seal installation depths, press-tool attachments, and mounting-shim placement. The WB760V material extends this coverage to the trim grip, control cables, nozzle deflector, and trim ring.

The Pipe Routing Diagram and Cable Routing Diagram complement the Cooling System Diagram, Ventilation System Diagram, and Oil Injection System Diagram. Together, they provide references for reconnecting hoses and controls inside the confined hull after component removal.

Ignition, Starting and Instrument Tests

Electrical charts lay out CDI magneto resistance values, lighting-coil output, and starter-motor specifications. Tester connections, switch-continuity checks, and brush and commutator inspections support fault tracing beyond a general wiring overview.

The WB760 indication-system sections cover fuel-level and oil-level sensors and the multifunction meter’s warning segments. Symptom charts connect starting, running, overheating, charging, and bilge-water complaints with the relevant systems and inspection chapters.

Before starting any teardown, review Yamaha’s fuel-vapor, ventilation, and battery-safety precautions.

Selected Compression and Tune-Up Data

The Wave Blaster base manual gives a compression-pressure reference of 940 kPa for its in-water, warm-engine check with the throttle fully open. Spark plug inspection specifies a 0.6–0.7 mm gap; battery inspection uses an electrolyte specific gravity of 1.28 at 20°C.

Reed-valve stopper height is 10.7–11.1 mm in the base manual and 9.0 ± 0.2 mm in the WB700A supplement and WB760 manuals. These variant-specific dimensions accompany the reed inspection and replacement criteria.