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

This Yamaha factory service manual covers the WaveRunner SUV SV1200 with GU5/F1D hull codes and 66G/68X engine codes. The first edition, dated December 1999 (P/N GU5-28197-ZA-C1), is identified as SV1200Y on the back cover and includes English, French, German, and Spanish text.

PDF Search, Bookmarks, and Wiring Detail

Finding procedures and wire labels: The manual has searchable text and chapter bookmarks organized by language. Zoom in to read the smallest connector markings and wire-color codes on the full wiring diagram.

The ZIP download contains one printable PDF with 443 pages, including the front cover, section dividers, wiring diagram and its multilingual legend, one blank page, and the back cover.

Engine, Jet Pump, and Electrical Service

This selection of workshop topics also includes examples such as seat-lock inspection and steering master bushing checks.

• Periodic maintenance: Service intervals, spark plug and battery checks, impeller and water-inlet filter inspection, bilge-strainer and drain-plug checks, and lubrication points.
• Engine repair: Step-by-step removal, inspection, and reassembly for the engine, reed valves, exhaust ring and chamber, muffler, cylinder head, cylinders, pistons, flywheel magneto, crankcase, and crankshaft.
• Fuel and oil injection: Mikuni BN44 carburetor disassembly and synchronization, fuel pump inspection, fuel and oil tank service, filter and check-valve checks, and oil injection bleeding.
• Jet pump and controls: Pump removal, impeller and drive shaft disassembly, bearing and seal work, transom plate service, and steering, QSTS trim, and reverse-gate adjustments.
• Electrical diagnosis: Digital CDI peak-voltage and low-resistance tests, starter motor and relay checks, charging tests, and checks for the multifunction meter, level switches, overheat warning, and speed sensor.
• Hull and hood: Access-cover and hood removal, remote-control cable and speed sensor lead installation, hull scratch and fiberglass repair, insert nut work, and graphic removal and installation.

Yamaha wrote this manual primarily for its dealers and trained mechanics and assumes a working knowledge of mechanical and electrical service.

Engine Alignment and Fuel-System Work

The engine chapter shows how mounting shims are grouped and how coupling clearance is checked after engine work. The intermediate housing section covers bearing and seal replacement and includes a table for selecting bearing-housing shims. Specified and general torque tables cover fastener requirements, including staged tightening for the cylinder head and crankcase. Inspection data includes cylinder bore, taper and out-of-round, piston and ring measurements, crankshaft deflection, and drive shaft runout.

The fuel and control sections cover trolling-speed adjustment, high- and low-speed carburetor settings, throttle and choke free play, and oil pump cable alignment. Yamaha warns against running the engine if oil flow has not been established during bleeding and flags spilled fuel and ignition sources as hazards during fuel-system service.

Troubleshooting, Drawings, and Special Tools

The trouble-analysis chart links symptoms such as no-start, rough idle, stalling, overheating, excessive bilge water, and poor charging to checks and chapter references. For a no-start complaint, the ignition section helps distinguish a weak-spark condition from a fault elsewhere by pairing spark-gap, CDI output, and ignition-coil tests.

The manual indexes 45 sections with exploded diagrams and includes removal, installation, and disassembly charts, hose and cable routing views, four circuit diagrams, and a full craft wiring diagram. Regional tool references include 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.

Assembly Cautions and Hull Repair

The impeller has left-hand threads, so forcing it in the usual loosening direction can damage the threads. Yamaha also calls out the piston-ring locating pins because misaligned ring gaps can damage the rings during assembly.

The hull section covers shallow and deep scratches, cracks, punctures, and insert nuts. Yamaha directs technicians to consult the separate Water Vehicle FRP Repair Manual before repairing cracks or punctures or installing the specified hull insert nut.

Engine and Jet Pump Clearance Preview

For the SV1200 engine, Yamaha gives a cylinder-head warpage limit of 0.1 mm (0.004 in) for a straightedge and thickness-gauge check. The piston inspection section specifies 0.100–0.105 mm (0.0039–0.0041 in) for piston-to-cylinder clearance, calculated from the measured cylinder bore and piston diameter.

For the SV1200 jet pump, the specification table lists 0.35–0.45 mm (0.014–0.018 in) for impeller-to-housing clearance and a service limit of 0.6 mm (0.024 in).