This manual is suitable for both professional technicians and first-time owners or amateurs. It provides easy-to-read instructions and all the necessary information to perform procedures correctly. Keeping this shop manual handy and referring to it frequently is recommended. Regular preventive maintenance as outlined in the manual can save time and money by preventing premature failure and unnecessary repairs.
Manual Contents:
CHAPTER ONE/GENERAL INFORMATION
Manual organization
Notes, cautions, and warnings
Safety first
Service hints
Engine operation
Parts replacement
Clearing a submerged vehicle
Torque specifications
Fasteners
Lubricants
RTV gasket sealant
Threadlock
Basic hand tools
Precision measuring tools
Special tools
Mechanics tips
Ball bearing replacement
Oil seals
Specifications
CHAPTER TWO / TROUBLESHOOTING
Operating requirements
Emergency troubleshooting
Engine starting
Starting system
Charging system
Ignition system
Fuel system
Engine
Two-stroke pressure testing
Steering
Jet pump
CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP
Break-in procedure
10-hour inspection
Lubrication
Lubrication system identification
Recommended fuel mixture
Fuel mixing
Oil injection service
Oil pump bleeding
Oil filter
Oil tank drain hose
Check valve
Oil tank
50 and 100 hour maintenance schedule
Fuel filter
Water separator
Fuel filler cap
Fuel tank pickup
Cooling system flushing
Engine tune-up
Torque cylinder head bolts
Cylinder compression test
Spark plug
Ignition timing
Carburetor adjustment
Storage
Specifications
CHAPTER FOUR / ENGINE (500 CC)
Engine lubrication
Service precautions
Serial numbers
Servicing engine in hull
Special tools
Engine removal installation
Muffler housing and exhaust guide
Specifications
CHAPTER FIVE / ENGINE (650 CC)
Engine lubrication
Service precautions
Serial numbers
Servicing engine in hull
Special tools
Engine removal installation
Muffler housing
Engine top end
Cylinder
Piston, piston pin, and piston rings
Crankcase and crankshaft
Specifications
CHAPTER SIX / DRIVE TRAIN
Intermediate shaft and housing
Jet pump
Ride plate adjustment
Specifications
CHAPTER SEVEN / FUEL AND WATER BOX SYSTEMS
Flame arrestor
Intake manifold and reed valve
Type I Type II Carburetor
Type III Carburetor
Fuel tank
Fuel valve
Water box
Specifications
CHAPTER EIGHT / ELECTRICAL SYSTEM
Battery
Charging system
Electric starting system
Flywheel and stator plate
Flywheel, idler gear, and stator plate
Electric box
Switches
Fuel sender
Fuse
Wiring diagrams
Specifications
CHAPTER NINE / OIL INJECTION SYSTEM - WRA650 AND WRB650
