Yamakoyo YK1100 Owner'S Manual Download Page 6 | Manualshive

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3. CONTROLS

Fuel Valve Lever

The fuel valve opens and closes the passage between the fuel tank and the carburetor.
The fuel valve lever must be in the ON position for the engine to run.
When the engine is not in use, leave the fuel valve lever in the OFF position to prevent
carburetor flooding and to reduce the possibility of fuel leakage.

Throttle Lever

The throttle lever controls engine THROTTLE LEVER speed.
Moving the throttle lever in the directions shown makes the engine run faster or slower.

Engine Switch

The engine switch enables and disables the ignition system.
The engine switch must be in the ON position for the engine to run.
Turning the engine switch to the OFF position stops the engine.

3

CONTROLS

OFF

0N

0N

OFF......

FUEL
VALV E
LEVER

THROTTLE
LEVER

SLOW

SLOW

FAST

FAST

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5
6
7
8
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Summary of Contents for YK1100

Page 1: ......

Page 2: ...al for printing Only the D Type is equipped for both electric and manual starting Indicates serious injury or death will result if instructions are not followed DANGER Pay special attention to these symbols and any instructions that follow NOTICE Indicates a strong possibility that serious injury or death could result if instructions are not followed Indicates a possibility that minor injury can r...

Page 3: ...ONS 3 CONTROLS 4 CHECK BEFORE OPERATION 5 OPERATION 6 MAINTENANCE 7 STORAGE TRANSPORTING 8 TROUBLESHOOTING 9 TECHNICAL CONSUMER INFORMATION 10 SPECIFICATIONS 11 WIRING DIAGRAMS 12 OPTIONAL PARTS BATTERY CONTENTS 1 2 3 5 6 10 21 25 26 32 35 37 37 ...

Page 4: ... precautions that should be observed in conjunction with engine startup shutdown operation or protective apparel that may be needed to operate the equipment ENGINE SAFETY The engines are designed to give safe and dependable service if operated according to instructions Read and understand this owner s manual before operating the engine Failure to do so could result in personal injury or equipment ...

Page 5: ...OCATIONS 2 COMPONENTS CONTROL LOCATIONS FUEL FILLER CAP FUEL TANK OIL DRAIN PLUG OIL FILLER CAP DIPSTICK IGNITION SWITCH STARTER GRIP SPARK PLUG THROTTLE LEVER MUFFLER AIR CLEANER RECOIL STARTER CHOKE LEVER FUEL VALVE LEVER ...

Page 6: ...ing and to reduce the possibility of fuel leakage Throttle Lever The throttle lever controls engine THROTTLE LEVER speed Moving the throttle lever in the directions shown makes the engine run faster or slower Engine Switch The engine switch enables and disables the ignition system The engine switch must be in the ON position for the engine to run Turning the engine switch to the OFF position stops...

Page 7: ...t fuel mixture for operation after starting and for restarting a warm engine Some engine applications use a remotely mounted choke control rather than the engine mounted choke lever shown here Recoil Starter Grip Pulling the starter grip operates the recoil starter to crank the engine 4 CHOKE LEVER OPEN OPEN CLOSE CLOSE STARTER GRIP ALL ENGINE EXCEPT D TYPE ON OFF ENGINE SWITCH CONTROLS ...

Page 8: ...engine oil level before startup Check the air filter A dirty air filter will restrict air flow to the carburetor reducing engine performance Check the fuel level Starting with a full tank will help to eliminate or reduce operating interruptions for refueling Check the Equipment Powered by This Engine Review the instructions provided with the equipment powered by this engine for any precautions and...

Page 9: ...p shutdown or operation STARTING THE ENGINE 1 Move the fuel valve lever to the ON position 2 To start a cold engine move the choke lever to the CLOSE position To restart a warm engine leave the choke lever in the OPEN position Some engine applications use a remotely mounted choke control rather than the engine mounted choke lever shown here 6 OPERATION WARNING Carbon monoxide gas is toxic Breathin...

Page 10: ...y mounted throttle control rather than the engine mounted throttle lever shown here 4 Turn the engine switch to the ON position 5 Operate the starter RECOIL STARTER all engine types Pull the starter grip lightly until you feel resistance then pull briskly 7 HIGH THROTTLE LEVER SLOW LOW ON OFF ENGINE SWITCH CHOKE LEVER CLOSE OPEN OPERATION ...

Page 11: ... in an emergency simply turn the engine switch to the OFF position Under normal conditions use the following procedure 1 Move the throttle lever to the SLOW position Some engine applications use a remotely mounted throttle control rather than the engine mounted throttle lever shown here 8 Return the starter grip gently THROTTLE LEVER SLOW OPEN CHOKE LEVER STARTER GRIP OPERATION ...

Page 12: ... the desired engine speed Some engine applications use a remotely mounted throttle control rather than the engine mounted throttle lever shown here For engine speed recommendations refer to the instructions provided with the equipment powered by this engine 9 FUEL VALVE LEVER THROTTLE LEVER SLOW SLOW FAST FAST OFF ON OFF ENGINE SWITCH OPERATION ...

Page 13: ...dusty conditions consult your servicing dealer for recommendations applicable to your individual needs and use MAINTENANCE SAFETY Some of the most important safety precautions are as follows However we cannot warn you of every conceivable hazard that can arise in performing maintenance Only you can decide whether or not you should perform a given task Safety Precautions Make sure the engine is off...

Page 14: ...ntilation whenever you operate the engine Burns from hot parts Let the engine and exhaust system cool before touching Injury from moving parts Do not run the engine unless instructed to do so Emission related items Replace the paper element type only 1 Service more frequently when used in dusty areas REGULAR SERVICE PERIOD Performed at every indicated month or operating hour interval whichever com...

Page 15: ...ach flames or sparks Keep gasoline away from appliance pilot lights barbecues electric appliances power tools etc Spilled fuel is not only a fire hazard it causes environmental damage Wipe up spills immediately Fuel tank capacities YK 250 300 400 0 66Gal 2 5L YK 550 E YK 550 E L YK 550 E R 0 95Gal 3 6L YK 600 E 1 2Gal 4 5L YK 650 E YK 650 E L YK 650 E R 0 95Gal 3 6L YK 800 E YK 800 E L YK 800 E R ...

Page 16: ...dy engine speed under normal load change brands of gasoline If spark knock or pinging persists see an authorized servicing dealer ENGINE OIL LEVEL CHECK Check the engine oil level with the engine stopped and in a level position 1 Remove the filler cap dipstick and wipe it clean Running the engine with persistent spark knock or pinging can cause engine damage Running the engine with persistent spar...

Page 17: ...ely Please dispose of used motor oil in a manner that is compatible with the environment We suggest you take used oil in a sealed container to your local recycling center or service station for reclamation Do not throw it in the trash pour it on the ground or down a drain 3 With the engine in a level position fill to the outer edge of the oil filler hole with the recommended oil Engine oil capacit...

Page 18: ...filler neck but do not screw it in 3 If the level is low fill to the upper level mark with the same oil recommended for the engine SERVICING YOUR ENGINE ENGINE OIL RECOMMENDATIONS Oil is a major factor affecting performance and service life Use 4 stroke automotive detergent oil Oil capacity Of YK 550 650 800 900 E R 500CC 15 FILLER CAP DIPSTICK OIL LEVEL DRAIN BOLT DRAIN BOLT DIPSTICK FILLER CAP U...

Page 19: ...SE or SF oil AIR FILTER INSPECTION Remove the air cleaner cover and inspect the filter Clean or replace dirty filter elements Always replace damaged filter elements If equipped with an oil bath air cleaner also check the oil level AIR CLEANER SERVICE A dirty air filter will restrict air flow to the carburetor reducing engine performance 16 SAE Viscosity Grades AMBIENT TEMPERATURE 5W 30 10W 30 30 2...

Page 20: ...m air filter element Clean in warm soapy water rinse and allow drying thoroughly Or clean in nonflammable solvent and allow drying Dip the filter element in clean engine oil and then squeeze out all excess oil The engine will smoke when started if too much oil is left in the foam 6 Wipe dirt from the inside of the air cleaner base and cover using a moist rag Be careful to prevent dirt from enterin...

Page 21: ...ulated dirt with nonflammable solvent and dry the case 5 Fill the air cleaner case to the OIL LEVEL mark with the same oil that is recommended 3 for the engine Oil capacity 2 0 US oz 60 cm 6 Reassemble the air cleaner and tighten the wing nut securely SEDIMENT CUP CLEANING 1 Move the fuel valve to the OFF position and then remove the fuel sediment cup and O ring 18 WARNING Gasoline is highly flamm...

Page 22: ...f there is any leakage SPARK PLUG SERVICE Recommended spark plugs F7RTC or other equivalents 1 Disconnect the spark plug cap and remove any dirt from around the spark plug area 2 Remove the spark plug with a spark plug wrench 3 Inspect the spark plug Replace it if the electrodes are worn or if the insulator is cracked or chipped An incorrect spark plug can cause engine damage 19 SPARK PLUG WRENCH ...

Page 23: ...ghten 1 8 1 4 turn after the spark plug seats If installing a new spark plug tighten 1 2 turn after the spark plug seats 7 Attach the spark plug cap IDLE SPEED ADJUSTMENT 1 Start the engine outdoors and allow it to warm up to operating temperature 2 Move the throttle lever to its slowest position 3 Turn the throttle stop screw to obtain the standard idle speed Standard idle speed 1 400 150 rpm A l...

Page 24: ... 1 Remove the three 4 mm screws from the exhaust deflector and remove the deflector 2 Remove the four 5 mm screws from the muffler protector and remove the muffler protector 3 Remove the 4 mm screw from the spark arrester and remove the spark arrester from the muffler 4 Use a brush to remove carbon deposits from the spark arrester screen Be careful to avoid damaging the screen The spark arrester m...

Page 25: ...lems will vary with such factors as gasoline blend your storage temperatures and whether the fuel tank is partially or completely filled The air in a partially filled fuel tank promotes fuel deterioration Very warm storage temperatures accelerate fuel deterioration Fuel deterioration problems may occur within a few months or even less if the gasoline was not fresh when you filled the fuel tank The...

Page 26: ...sure that treated gasoline has replaced the untreated gasoline in the carburetor 3 Stop the engine and move the fuel valve to the OFF position DRAINING THE FUEL TANK AND CARBURETOR 1 Place an approved gasoline container below the carburetor and use a funnel to avoid spilling fuel 2 Remove the carburetor drain bolt and sediment cup and then move the fuel valve lever to the ON position 3 After all t...

Page 27: ...ystem cool cover the engine to keep out dust A hot engine and exhaust system can ignite or melt some materials Do not use sheet plastic as a dust cover A nonporous cover will trap moisture around the engine promoting rust and corrosion If equipped with a battery for an electric starter recharge the battery once a month while the engine is in storage This will help to extend the service life of the...

Page 28: ...ty fouled or improperly gapped Gap or replace spark plugs Spark plugs wet with fuel flooded engine Dry and reinstall spark plugs Start engine with throttle lever in FAST position Fuel filter clogged carburetor malfunction ignition malfunction valve stuck etc Replace or repair faulty components as necessary ENGINE LACKS POWER Possible Cause Correction 1 Check air filter Filter element s clogged Cle...

Page 29: ...ols cannot cause a short circuit if they touch a grounded part while tightening the positive battery cable end 1 Connect the battery positive cable to the starter solenoid terminal as shown 2 Connect the battery negative cable to an engine mounting bolt frame bolt or other good engine ground connection 3 Connect the battery positive cable to the battery positive terminal as shown 4 Connect the bat...

Page 30: ...t is necessary to loosen the throttle lever friction nut when operating the throttle with a remotery mounted control YK 250 YK 300 YK 400 YK 550 650 E YK 550 650 E R YK 550 650 E L 27 TECHNICAL CONSUMER INFORMATION POSITIVE BATTERY CABLE NEGATIVE BATTERY CABLE STARTER SOLENOID REMOTE THROTTLE LINKAGE RETURN SPRING THROTTLE LEVER PIVOT NUT REMOTE CHOKE LINKAGE WIRE HOLDER CHOKE LEVER Flexible wire ...

Page 31: ...ifications to the carburetor If you always operate your engine at altitudes above 5 000 feet 1 500 metres have your servicing dealer perform this carburetor modification This engine when operated at high altitude with the carburetor modifications for high altitude use will meet each emission standard throughout its useful life 28 TECHNICAL CONSUMER INFORMATION YK 800 900 1100 1200 1300 1500 E YK 8...

Page 32: ...nated fuel try to confirm the fuel s contents Some areas require this information to be posted on the pump The following are the EPA approved percentages of oxygenates ETHANOL ethyl or grain alcohol 10 by volume You may use gasoline containing up to 10 ethanol by volume Gasoline containing ethanol may be marketed under the name Gasohol MTBE methyl tertiary butyl ether 15 by volume You may use gaso...

Page 33: ...ngine inspected and repaired by your servicing dealer Hard starting or stalling after starting Rough idle Misfiring or backfiring under load Afterburning backfiring Black exhaust smoke or high fuel consumption Replacement Parts The emission control systems on your engine were designed built We recommend the use of genuine parts whenever you have maintenance done These original design replacement p...

Page 34: ...ICAL CONSUMER INFORMATION ITEM SPECIFICATION Spark plug gap 0 028 0 031 in 0 70 0 80 mm Valve clearance IN 0 15 0 02 mm cold EX 0 20 0 02mm cold Other specifications No other adjustments needed Engine Oil Type SAE 10W 30 API SE or SF for general use Capacity YK 250 300 YK 400 YK 550 650 E YK 800 900 1100 1200 1300 1500 E 0 37 US qt 0 35L 0 63 US qt 0 6L 1 2 US qt I IL Spark Plug Type Gap F7RTC or ...

Page 35: ...2 342 342 391 315 376 362 376 362 371 335 335 335 335 25 28 16 19 15 5 18 5 16 5 19 5 19 22 Model Type Max torque N m rpm Valve Clearance Recommended power kW 3600rpm Fuel consumption g kW h Idle speed Speed Fluctuating Ratio Transmission Mode Reduction Ratio Bore Stroke mm Displacement cc Compression Ratio Lubricating mode Starting Mode Rotation Spark plug clearance Igniting Mode Air cleaner Dime...

Page 36: ...00 E R Single cylinder 4 Stroke Forced Air Cooling OHV 5 3 6 0 5 3 6 0 5 3 6 0 16 5 3000 19 3000 32 1500 37 1500 32 1500 37 1500 395 1400 150rpm 10 Chain Mode Clutch Mode 2 1 73x58 77x58 73x58 77x58 73x58 77x58 242 270 242 270 242 270 8 2 1 Splash Recoil start Recoil start Electric starting Anti clockwise from P T O side input valve 0 10 0 15mm output valve 0 15 0 20mm 0 7 0 8mm Transistorized mag...

Page 37: ...mission Mode Gear transmission Reduction Ratio 2 1 Bore Stroke mm 82x64 88x64 82x64 88x64 Displacement cc 337 389 337 Compression Ratio 8 1 Lubricating mode Splash Starting Mode Recoil start Recoil start Electric starting Anti clockwise from P T O side Spark plug clearance 0 7 0 8mm Igniting Mode Transistorized magneto Ignition Air cleaner Semi dry Oil bath Foam filter Dimension LxWxH mm 405x450x4...

Page 38: ...ATTERY SPARK PLUG TRANSISTORIZED IGNITION UNIT BI BI Br Br CONTROL BOX OIL LEVEL SWITCH CHARGING COIL RECTIFIER FUSE ENGINE SWITCH CIRCUIT BREAKER W W W Y Y W BI W BI W ENGINE SWITCH IG E ST BAT OFF ON START Bl BLACK Br BROWN Y YELLOW R RED W WHITE G GREEN OIL ALERT UNIT ...

Page 39: ...Engine Type with Oil Alert and Without Electric Starting 36 WIRING DIAGRAMS ENGINE SWITCH SPARK PLUG BI OIL LEVEL SWITCH Y Y OIL ALERT UNIT BI Y TRANSISTORIZED IGNITION UNIT Bl BLACK Y YELLOW G GREEN ...

Page 40: ...llow the correct procedure seriously injuring anyone nearby Keep all sparks open flames and smoking materials away from the battery WARNING LOWER LEVEL UPPER LEVEL Check the electrolyte level to be sure that It is between the marks on the case If the level is below the lower mark remove the caps and add distilled water to bring the electrolyte level to the upper mark The cells should be equally fu...

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