Yamaha WaveRunner VXR 650 / VXR Pro 700 Service Manual Set, 1991–1995

Match the identification table to your machine before selecting carburetor, engine, electrical, or pump specifications. The later manual separates the FN8 and GD0 configurations rather than treating their service data as interchangeable.

PDF Bookmarks, Search Limits, and Page Count

Navigation and wiring detail: Embedded bookmarks organize both manuals by chapter and major topic. Technical text is not searchable in this PDF. Small wiring-diagram labels require zooming for comfortable reading.

One printable English PDF contains 346 pages, including four additional pages and eight mostly blank pages.

Two-Stroke Engine, Jet-Pump, and Electrical Service

The following selected coverage highlights outline the major workshop areas. Further topics include compression-pressure checks and engine-hood latch inspection.

• Fuel and lubrication: Fuel-tank, cock, filter, check-valve, and hose inspection; carburetor removal, inspection, adjustment, and reassembly; oil-pump, tank, and line service.

• Power-unit repair: Step-by-step procedures cover reed valves, cylinder heads, cylinders, pistons and rings, engine removal, intermediate-shaft and housing service, crankcase separation, crankshaft inspection, and reassembly.

• Jet-pump service: Impeller and drive-shaft removal, housing and bearing inspection, reassembly, bilge-system service, and ride-plate adjustment.

• Hull and controls: Exhaust, steering, control-cable, gunwale, mat, hood, and deck service, plus repair procedures for light scratches, deep scratches, and punctured hull damage.

• Electrical diagnosis: Tests and service for the CDI magneto and unit, ignition coil, thermo switch, rectifier-regulator, starter relay and motor, battery, switches, and wiring.

• Diagrams and troubleshooting: FN8/GD0 wiring diagrams, pipe and cable routing, cooling and ventilation flow diagrams, an oil-injection schematic, and fault charts for no-start, absent or weak spark, irregular running, stalling, and failure to shut off.

• Factory reference data: Maintenance schedules, component-specific torque tables, wear limits, clearances, carburetor settings, electrical test values, capacities, inspection standards, and Yamaha special-tool references.

This service manual set is written for mechanics; the procedures call for precision measurement, electrical testing, and Yamaha-specific pullers and holding tools.

Variant-Specific Fuel and Electrical Work

The fuel chapters distinguish oil-injection and premix layouts. Oil-injection coverage follows the oil pump, sub-tank, main tank, oil filter, check valves, and hoses, with routing information for the applicable arrangement.

The later GD0 section adds fuel-sender resistance checks and multifunction-meter tests for the display, overheat indication, fuel gauge, and warning segments. The Mitsubishi magneto/CDI system has component test values and lead identification, so the troubleshooting charts can be followed with the corresponding ignition and charging-circuit checks.

Engine Alignment, Hull Repairs, and Service Tools

Bottom-end coverage includes flywheel-magneto removal and idle-gear inspection. Engine installation includes coupling-alignment checks and shim selection.

The later hull chapter also covers graphics replacement and insert-nut repair; its fiberglass-repair material refers to the separate Water Vehicle FRP Repair Manual for further detail.

Yamaha identifies dedicated tooling, including the CDI tester YU-91022-B, flywheel puller YB-6117 / 90890-06521, shaft holder YW-38742 / 90890-06069, and coupler wrench YW-38741 / 90890-06425. Regional 90890-series equivalents appear beside the U.S./Canada tool numbers.

Reversed battery leads can seriously damage the electrical system. The piston procedures also flag ring alignment and piston-pin clip orientation, with cautions against piston and ring damage.

Gasoline vapor, battery service, rotating driveline parts, and running-engine tests require proper ventilation, isolation, eye protection, and the shop precautions stated in the manual.

A Preview of Piston and Ignition Test Data

In the later manual, piston-to-cylinder clearance is 0.080–0.085 mm for FN8 and 0.070–0.075 mm for GD0; the wear limit is 0.1 mm for both. These specifications accompany the piston and cylinder inspection procedures.

The later FN8/GD0 ignition-coil test specifies primary resistance of 0.078–0.106 Ω at 20°C (68°F), alongside terminal identification and separate secondary-resistance checks.