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Whenever you see the symbols shown below,
heed their instructions! Always follow safe operat-
ing and maintenance practices.
This warning symbol identifies special in-
structions or procedures which, if not cor-
rectly followed, could result in personal
injury, or loss of life.
© 2008 Kawasaki Heavy Industries, Ltd.
This caution symbol identifies special in-
structions or procedures which, if not strictly
observed, could result in damage to, or de-
struction of equipment.
This note symbol indicates points of particular in-
terest for more efficient and convenient operation.
(1): Nov. 2008. (M)


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  • Page 1 This note symbol indicates points of particular in- rectly followed, could result in personal terest for more efficient and convenient operation. injury, or loss of life. READ THE OPERATING INSTRUCTIONS OF THE EQUIPMENT THIS ENGINE POWERS. © 2008 Kawasaki Heavy Industries, Ltd. (1): Nov. 2008. (M)
  • Page 2 Always remove the spark plug caps from spark plugs when servicing the engine to prevent acci- dental starting. Read warning labels which are on the engine and understand them. If any label is missing, damaged, or worn get a replacement from your Kawasaki engine dealer and install it in the correct position.
  • Page 3: Emission Control Information

    U.S.A. Emission Control Information To protect the environment in which we all live, Kawasaki has incorporated an exhaust emission control sys- tem in compliance with applicable regulations of the United States Environmental Protection Agency and the California Air Resources Board.
  • Page 4 The Kawasaki Limited Emission Control System Warranty requires that you return your engine to an autho- rized Kawasaki dealer for remedy under warranty. Please read the warranty carefully, and keep it valid by complying with the owner’s obligations it contains.
  • Page 5 Among those acts presumed to constitute tampering are the acts listed below: Do not tamper with the original emission related parts: • Carburetor or DFI system, and their internal parts • Spark Plug • Magneto or electronic ignition system • Fuel filter element •...
  • Page 6 Kawasaki Heavy Industries, Ltd., Consumer Products & Machinery Company. Although every possible care has been taken to make this manual as complete and accurate as possible, Kawasaki cannot guarantee against errors and omissions. Due to improvements in design and performance during pro- duction, procedures and specifications are subject to change without prior notice.
  • Page 7: Table Of Contents

    TABLE OF CONTENTS GENERAL INFORMATION......Choke Cable Installation, Adjustment ... Label Location ..........Engine Speed Adjustment......Parts Location ..........MAINTENANCE ..........Tune-up Specifications ........Periodic Maintenance Chart ......Engine Oil Capacity........Oil Level Check ..........FUEL AND OIL RECOMMENDATIONS ..Oil Change ............
  • Page 8: General Information

    GENERAL INFORMATION GENERAL INFORMATION Label Location 1. Warning Label 2. Important Engine Information Label 3. Engine Maintenance Label 4. Engine Serial Number Label The engine serial number is your only means of identifying your particular engine from others of the same model type.
  • Page 9: Parts Location

    GENERAL INFORMATION Parts Location G. Fuel Pump H. Fuel Filter I. Electric Starter J. Voltage Regulator A. Air Cleaner B. Air Inlet Guard C. Oil Drain Plug D. Oil Filter E. Spark Plugs/Spark Plug Caps F. Oil Gauge K. Control Panel L.
  • Page 10: Tune-up Specifications

    Tune-up Specifications Engine Oil Capacity ITEM Engine Oil Capacity Specifications 1.8 L (1.9 US·qt) Ignition Timing Unadjustable FS651V [when oil filter is not removed] Spark Plugs: NGK BPR4ES FS691V 2.1 L (2.2 US·qt) 0.75 mm (0.030 in) FS730V [when oil filter is removed]...
  • Page 11: Fuel And Oil Recommendations

    FUEL AND OIL RECOMMENDATIONS FUEL AND OIL RECOMMENDATIONS Oxygenated Fuel Fuel Oxygenates (either ethanol or MTBE) are added to the gasoline. If you use the oxygenated fuel be Use only clean, fresh, unleaded regular grade sure it is unleaded and meets the minimum octane gasoline.
  • Page 12: Engine Oil

    FUEL AND OIL RECOMMENDATIONS NOTE Engine Oil ○ Using multi grade oils (5W-20, 10W-30, and 10W -40) will increase oil consumption. Check oil level The following engine oils are recommended. more frequently when using them. API Service Classification : SF, SG, SH, SJ or SL. Oil Viscosity Choose the viscosity according to the temperature as follows:...
  • Page 13: Preparation

    Do not fill above the “FULL” mark. Excess oil will cause a smoking condition, and may cause the engine to overheat. Engine Oil Capacity 1.8 L (1.9 US·qt) FS651V [when oil filter is not removed] FS691V 2.1 L (2.2 US·qt) FS730V...
  • Page 14 PREPARATION CAUTION The engine is shipped without engine oil.
  • Page 15: Starting

    STARTING STARTING NOTE Starting the Engine ○ Follow the operating instructions of the equipment this engine powers. • WARNING Before starting the engine, disconnect all possible external loads. Exhaust gases contain carbon monoxide, a Open the fuel valve (A) on the equipment. colorless, odorless, poisonous gas.
  • Page 16 STARTING CAUTION Whenever you start engine, make sure warn- ing lamp is not illuminated after engine starts. If warning lamp comes on, stop engine immediately and check oil level (If equipped). • After starting the engine, gradually return the choke lever to the fully open position.
  • Page 17: Operating

    OPERATING OPERATING Warming Up Engine Inclination After the engine starts, move the throttle lever (A) This engine will operate continuously at angles up on the equipment to halfway between “FAST” and to 25° in any direction. “SLOW”. Refer to the operating instructions of the equip- To warm up the engine, run it for 3 to 5 minutes ment this engine powers.
  • Page 18: Stopping

    STOPPING STOPPING Emergency Stop Stopping the Engine • Immediately turn the engine switch or the switch key to “OFF” position. Close the fuel valve on the equipment. WARNING For Control Panel Switch Type, move the throttle Always remove Engine Key from switch lever on the equipment to its low speed end.
  • Page 19: Adjustment

    ADJUSTMENT ADJUSTMENT Throttle Cable Installation, Adjustment Choke Cable Installation, Adjustment • • Link the throttle cable (G) to the speed control Link the choke cable (K) to the choke control lever lever (C) and loosely clamp the throttle cable outer (D), and loosely clamp the choke cable outer housing (F) with the cable clamp bolt (A).
  • Page 20: Engine Speed Adjustment

    Ev- ery carburetor is adjusted at the factory and a cap or stop plate is installed on each mixture screw. ○ If any adjustment is necessary, it must be per- formed by your authorized Kawasaki Engine dealer.
  • Page 21: Maintenance

    ○ The service intervals can be used as a guide. Service more frequently as necessary by operating conditions. ♦ : Service more frequently under dusty conditions. K : Service to be performed by an authorized Kawasaki dealer. INTERVAL MAINTENANCE First...
  • Page 22 MAINTENANCE INTERVAL MAINTENANCE First Every Every Every Every Every Every Every Daily 8 hr. 25 hr. 50 hr. 100 hr. 200 hr. 250 hr. 300 hr. 500 hr. • ♦ Clean air cleaner foam element. • ♦ Clean air cleaner paper element. ♦...
  • Page 23: Oil Level Check

    Check oil level daily and before each time of oper- ation. Be sure oil level is maintained. See “PREPA- RATION” chapter. Engine Oil Capacity 1.8 L (1.9 US·qt) FS651V [when oil filter is not removed] FS691V 2.1 L (2.2 US·qt) FS730V...
  • Page 24: Oil Change

    MAINTENANCE Oil Change Change oil after first 8 hours of operation.There- after change oil every 100 hours. • Run the engine to warm oil. Be sure the engine (equipment) is level. Stop the engine. Remove the oil drain plugs (A) and drain the oil into suitable container while engine is warm.
  • Page 25: Oil Filter Change

    MAINTENANCE Oil Filter Change • Change the oil filter every 200 hours of operation. WARNING Hot engine oil can cause severe burns. Allow engine temperature to drop from hot to warm level before attempting to remove oil filter. • Drain engine oil into a suitable container (C). CAUTION A.
  • Page 26: Air Cleaner Service

    MAINTENANCE Paper Element Air Cleaner Service Clean the paper element (B) every 100 hours. • Clean the paper element by tapping gently to re- move dust. If very dirty, replace the paper element CAUTION with a new one. To prevent excessive engine wear, do not run Replace with a new paper element yearly or 200 the engine with the air cleaner removed.
  • Page 27: Spark Plug Service

    MAINTENANCE Spark Plug Service WARNING Hot engine components can cause severe burns. Stop engine and allow it to cool before check- ing spark plugs. Clean or replace the spark plugs and reset spark plug gap (A) every 100 hours of operation. •...
  • Page 28: Fuel Filter And Fuel Pump Service

    MAINTENANCE • The fuel filter can not be disassembled. If the fuel Fuel Filter and Fuel Pump Service filter gets clogged, replace it with a new one. The fuel pump can not be disassembled. If the fuel pump fails, replace it with a new one. WARNING Improper use of solvents can result in fire or an explosion.
  • Page 29: Cooling System Cleaning

    MAINTENANCE Cooling System Cleaning Before each use, check that the air inlet (rotary) screen (inside A) is free from grass and debris and clean if necessary. When checking or cleaning the air inlet screen, remove air inlet guard (A). Every 100 hours of operation, check and clean the cooling fins and inside of engine shrouds to remove grass, chaff or dirt clogging the cooling system and causing over-...
  • Page 30: Storage

    STORAGE STORAGE • Install the sediment bowl and open the fuel valve. Fuel System Draining • To remove the fuel from the carburetor, run the Engines to be stored over 30 days should be com- engine to use up the fuel in the carburetor. pletely drained of fuel to prevent gum deposits form- •...
  • Page 31 STORAGE A. Spark Plug Hole...
  • Page 32: Troubleshooting Guide

    TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE If the engine malfunctions, carefully examine the symptoms and the operating conditions, and use the table below as a guide to troubleshooting. Symptom Probably Cause Remedy Engine won’t Insufficient Faulty pistons, cylinders, piston rings, start or output is compression and head gaskets Faulty valves...
  • Page 33 Faulty governor won’t increase K: Service to be performed by an authorized Kawasaki dealer. M: For Control Panel Switch Type, move the throttle lever on the equipment away from its low speed end to turn the engine switch to “START” position.
  • Page 34: Environmental Protection

    To protect our environment, properly discard used batteries, engine oil, gasoline, coolant, or other compo- nents that you might dispose of in the future. Consult your authorized Kawasaki engine dealer or local environmental waste agency for their proper dis- posal procedure.
  • Page 35: Specifications

    SPECIFICATIONS SPECIFICATIONS FS651V, FS691V, FS730V Type Air-cooled, 4-stroke OHV, V-twin cylinder, gasoline engine Bore × Stroke 78 × 76 mm (3.07 × 2.99 in.) Displacement 726 mL (44.3 Ignition System Solid-state ignition Direction of Rotation Counterclockwise facing the PTO Shaft...
  • Page 36: Wiring Diagram

    WIRING DIAGRAM WIRING DIAGRAM NOTE Wiring Diagram ○ Portion Surrounded by hatching Shows Kawasaki Procurement Parts. WARNING For electrical safety, always remove cable from negative (–) side of battery before at- tempting any repair or maintenance. Battery Capacity Recommended Battery Capacity...

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