Yamaha SUV SV1200 Waverunner 2000–2004 Service Manual (P/N GU5-28197-ZA-C1)

• 443-page Yamaha factory service manual PDF — P/N GU5-28197-ZA-C1, first edition, December 1999. Covers the WaveRunner SUV SV1200/SV1200Y in English, French, German, and Spanish, with hull codes GU5/F1D, engine codes 66G/68X, and factory identification and starting-serial references.
• Engine sections cover removal, disassembly, inspection, and reassembly of the reed valves, exhaust ring and chamber, muffler, cylinder head, cylinders, pistons, flywheel magneto, starter motor, crankcase, crankshaft, and intermediate housing.
• Fuel and oil-injection chapters detail the triple Mikuni BN44 carburetors, fuel pump, fuel and oil tanks, filters, hoses, check valves, oil pump, cable setting, carburetor synchronization, and oil-injection system bleeding.
• Jet-pump service addresses unit removal, reverse gate and nozzle assemblies, impeller duct and housing, drive shaft, bearings, transom plate, bilge components, and steering, QSTS trim, and shift-control setup.
• Electrical diagnosis uses factory peak-voltage and low-resistance test methods for the digital CDI ignition, starting, charging, warning and indication systems, multifunction meter, fuel- and oil-level switches, overheat warning, and speed-sensor circuits.
• Drawing and diagnostic support consists of 45 named exploded-diagram sections, matching removal/installation or disassembly charts, ignition, starting, charging, and indication-system wiring diagrams, a complete craft wiring diagram, hose and cable routing views, and a symptom-based trouble-analysis chart.
• Reference data and hull sections add a maintenance interval chart, specified and general torque tables, wear limits, clearances, runout and adjustment data, special-tool references, and hull repair coverage for scratches, cracks, punctures, insert nuts, and graphic removal and installation.

Factory Repair Coverage

This is a factory workshop manual rather than a basic owner’s guide. Its specifications identify the SV1200 powertrain as a 1,131 cm³, three-cylinder, reed-valve two-stroke with water cooling, oil injection, three BN44 carburetors, digital CDI ignition, and direct drive to an axial-flow, single-stage jet pump. The control system uses manual QSTS trim and a reverse gate.

The identification chapter helps confirm the exact machine before repair information or parts are selected. It lists starting primary ID numbers of GU5: 700101 and F1D: 910101, starting engine serials of 66G: 000101 and 68X: 000101, and a starting 66G jet-pump unit serial of 800101. It also shows where the primary ID, engine number, jet-pump number, and hull identification number are located.

Periodic service is organized by control system, fuel system, oil injection, power unit, electrical equipment, jet pump, and general maintenance. It calls out cooling-water passage cleaning, impeller and water-inlet-filter inspection, bilge-strainer service, drain plugs, and lubrication points. Adjustment coverage includes steering play and cable centering, throttle and choke free play, QSTS nozzle alignment, reverse-gate shift-cable setup, trolling speed, carburetor settings, oil-pump cable alignment, and oil-injection air bleeding.

For deeper repair work, the manual covers carburetor and fuel-pump inspection, engine removal, piston and cylinder measurement, flywheel and coupling work, crankcase and crankshaft service, intermediate-housing bearing and seal replacement, impeller and drive-shaft work, remote-control cable installation, and multifunction-meter testing. The final trouble-analysis matrix cross-references no-start, rough idle, stalling, poor performance, overheating, loose steering, excessive bilge water, warning-indicator faults, and weak battery charging to the relevant systems and chapters.

Specifications, Diagnostics, and Diagram Support

The engine tables group cylinder-head warpage, cylinder bore, taper and out-of-round, piston diameter and clearance, piston-ring end gap, crankshaft deflection, and bearing or coupling checks. Jet-pump data covers impeller clearance, drive-shaft runout, and related inspection limits. Electrical tables include ignition-timing data; CDI, charge-coil, pulser-coil, and lighting-coil peak-voltage values; coil resistance; charging output; thermo-switch checks; and starter-motor wear limits. Component-specific torque tables identify staged tightening, thread-locking compounds, and fastener-specific requirements.

Representative drawings include the Carburetor Unit, Crankcase, Intermediate Housing, Impeller Duct and Drive Shaft, Remote Control Cables and Speed Sensor Lead, and the complete Wiring Diagram. Yamaha also lists regional tool equivalents, including the YU-39991/90890-03169 peak-voltage adapter, YB-06117/90890-06521 flywheel puller, YB-06151/90890-06519 drive-shaft holder, and YB-06096/90890-06523/90890-06531 jet-pump bearing slide-hammer set.

Two details show why the factory information matters during repair. The impeller uses left-hand threads; forcing it in the normal loosening direction can damage the impeller or drive-shaft threads. Piston-ring end gaps must stay indexed to their locating pins, since incorrect positioning can damage the rings, pistons, or cylinder bores. The oil-injection section also warns against running the engine until oil flow is established after bleeding. Fuel-system, battery, and jet-pump work should be performed with the engine stopped, the electrical system isolated, and the craft securely supported.