1996 Yamaha WB760U WaveBlaster II Jetski Service Manual
WB760U detailed fuel system tuning — carburetor settings, jet specifications (Main Jet 135/137.5, Pilot Jet 115), and oil injection procedures with part numbers
Yamaha Models Covered & Key Technical Specifications
Models: Yamaha WB760U WaveBlaster II
Model Year: 1996
Serial Numbers: Primary I.D. GK5: 900101–, 910101– (FRA), 930101– (GUM, AUS); Engine Serial 64Y: 000101–; Pump Serial 64Y: 500101–
Technical Data:
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Engine: 2-cylinder, 2-stroke, 754 cc
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Cooling: Water-cooled
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Ignition: Digital C.D.I. (15–20° BTDC)
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Fuel System: Dual floatless carburetors with oil injection (50:1 mix)
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Propulsion: Single-stage axial flow jet pump
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Dry Weight: 180 kg (397 lb)
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Fuel Tank Capacity: 40 L (10.6 US gal)
Yamaha Manual Features & Content Preview
1996 Yamaha WB760U WaveBlaster II Service Manual Overview
- Covers the 1996 Yamaha WB760U WaveBlaster II, featuring the 754 cc two-cylinder, two-stroke engine and single-stage axial flow jet pump.
- Official 144-page Yamaha OEM publication (LIT-18616-01-47, 90890-06752), first edition from February 1996.
- Contains over 40 exploded-view diagrams, 15 specialized tool references, and complete wiring schematics for the ignition, charging, and indicator circuits.
- Available as an instant download directly to your device.
- Full-text search allows you to locate specific part numbers in seconds. Formatted for standard Letter and A4 printing.
System Coverage and Technical Data
This factory documentation details the mechanical and electrical architecture of the original WaveBlaster II. You get complete technical specifications for the power unit, covering the cylinder head, reed valve, muffler, crankcase, and crankshaft assembly. The manual maps out the entire fuel system, breaking down carburetion, oil pump circuits, and the fuel tank assembly. For electrical diagnostics, it provides exact wiring diagrams and routing for the ignition, starting, and indicator systems. Access this data right away via instant download to keep your shop schedule moving without delay.
Beyond the engine block, the manual outlines the jet pump unit, highlighting the impeller, drive shaft assembly, cooling lines, and bilge routing. You will find defined periodic inspection schedules to maintain internal clearances, alongside reference tables for tightening torques, fluid capacities, and wear limits.
For instance, cylinder head bolt torque is set at 36 Nm (26 ft-lb), while the intake reed valve bending limit is 0.2 mm. Electrical baselines note the ignition coil primary winding resistance at 0.078–0.106 ohms (at 20°C). Working on high-performance marine engines carries inherent physical risks regarding high voltage and pressurized fuel systems; always verify all procedures against these OEM parameters or consult a certified marine technician before beginning teardowns. For more context on what an OEM service publication covers, refer to the specific CDI unit diagnostics and pulser coil resistance values included in this guide.
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