LONCIN LC154f-1 User manual

CONTENTS
-2-
CONTENTS
1.ENGINESAFETY........................................................................................2
2.COMPONENTS&CONTROLLOCATIONS 3
3.CONTROLS..........................................................................................4
Engineswitch
Chokelever
Recoilstarter
Governor lever
4.CHECKBEFOREOPERATION..............................................................................6
Check
Check oil
Check fuel
Check aircleaner
5.STARTINGENGINE........................................................................................................8
6.STOPENGINE ...................10
7.MAINTENANCE ...11
Schedule
Renewing engineoil
Maintainingaircleaner
Sparkplug
8.STORAGE .16
9.TROUBLSHOOTING ...17
10.ENGINEPARAMETER ..20
11. WIRINGDIAGRAMS ..21

ENGINESAFETY
-3-
1. ENGINESAFETY
IMPORTANTSAFETYINFORMATION
Mostaccidentswithenginescan be preventedifyoufollowallinstructionsinthis
manual andon theengine.Someofthemost commonhazardsarediscussed below,
alongwiththebestwaytoprotect yourselfandothers.
Owner Responsibilities
lThe enginesaredesigned togivesafeand dependableserviceifoperated according
toinstructions.Readandunderstandthisowner’smanualbeforeoperatingthe engine.
Failure todosocouldresultinpersonalinjuryor equipmentdamage.
lKnowhowtostop the engine quickly,andunderstandthe operationofallcontrols.
Never permitanyonetooperatetheenginewithoutproper instructions.
lDonotallowchildrentooperatetheengine.Keep childrenandpetsfarawayfromthe
area ofoperation.
Refuel WithCare
Gasolineisextremelyflammable,andgasolinevaporcan explode.Refueloutdoors,in
awell-ventilated area,withtheengine stopped.Never smokeneargasoline,andkeep
otherflamesand sparksaway.Alwaysstoregasolinein an approvedcontainer.If anyfuel
is spilled,makesuretheareaisdrybeforestartingthe engine.
HotExhaust
lThe muffler becomesveryhotduring operationandremainshotforawhile after
stoppingthe engine.Becareful nottotouchthe mufflerwhileitishot. Lettheengine
cool beforestoringitindoors.
lTopreventfirehazardsandtoprovideadequateventilationforstationaryequipment
applications, keeptheengine atleast 3feet(1meter)awayfrombuilding wallsand
otherequipmentduring operation.Donotplaceflammable objectsclosetothe engine.
Carbon MonoxideHazard
Exhaustgascontainspoisonouscarbonmonoxide.Avoid inhalationofexhaustgas.
Never run theengine inaclosed garage orconfinedarea.

COMPONENTS&CONTROLLOCATIONS
-4-
Recoilstarter
2. COMPONENTS&CONTROLLOCATIONS
MufflerCover
Fuel tank
Startinglever
Aircleaner
Spark plug
Cylinderhead
cover
Switch
Chokelever
Drainplug
Oildipstick
E
xhaut deflector

CONTROLS
-5-
3. CONTROLS
1) EngineSwitch
The engineswitchenablesand disablestheignitionsystem.
The engineswitchmust beintheON positionfortheenginetorun.
Turningtheengine switchtotheOFF positionstops the engine.
2) Choke Lever
The chokelever opensandcloses thechokevalveinthecarburetor.
Set lever “CLOSE”for startingacold engine.
Afterstarting,set the chokelever to “OPEN”position
3) RecoilStarter Grip
Pullingthestartergripoperatestherecoilstartertocrank theengine.
Don’tletthelever suddenlyrebound,lightlyputthelever back.
Chokelever
Open
Close
CAUTION
ONOFF
The engineswitch

CONTROLS
-6-
Ifautomaticallystoppingandnotstarting,first,check theoillever,then,
check
othertrouble.
CAUTION
Startergrip

CHECK BEFOREOPERATION
-7-
4. CHECK BEFOREOPERATION
1) Check
lLook around andunderneaththeengine forsignsofoilorgasolineleaks.
lLook forsignsof damage.
lCheckthatallshieldsandcoversare inplace,andallnuts,bolts,andscrewsare
tightened.
2) Checkoil
When stopping theengineat horizontalplace,checktheoil
1) Taketheoildipstickandclean
2) Inserttheoil dipstick inandchecktheoillever withoutscrewing down.
3) If theoilistoolow,add therecommencedoilin.
4) After finishing,reassembleandscrewtheoildipstick down.
The OilAlertsystem(applicableengine types)willautomaticallystop theenginebeforethe
oil level fallsbelowsafelimits. However,toavoidthe inconvenienceofanunexpected
shutdown,always checktheengineoillevel beforestartup.
3) Checkfuel
Firststopthe engine,openthefuel cover,and checkoil level.,iftheoil levelistoolow,add
thefuel tofull,afterfinishing, screwthefuel cover down.
Don’taddthefuelover theshoulder ofthe carburetorwhen fueling(maximumoillevel).
Fuel tankvolume
154F-1 1.6L
CAUTION
Lower limit
Upper limitOildipstick

CHECK BEFOREOPERATION
-8-
Recommendedoctane ratingover 90 unleadedgasoline
For unleadedgasoline, can makecarbon depositmuck less andenhanceexhaust system
servicelife
Don’tuseusedandcontaminated or gasoline withoil,Avoid thedirtandwater entering
intofuel tank.
4) Checkaircleaner
Removethe air cleanerhousing andcheck theelement,ifthe elementdirt, clean it,if
damaged,renew.
Nut M6
Air cleaner
elbow Supportingplatee Element Cover
Screw
Maximumfuel
oillevel

Startingengine
-9-
5. Starting engine
1) Tostartacoldengine,movethechokelever tothe “CLOSE “position.
Tostartawarmengine,turnthe chokeevertothe”OPEN”position.
2）Turnthe engineswitchtothe “ON “position
Close
Open
Chokelever
ON
OFF
The engineswitch

Startingengine
-10 -
3) Pullthestartergriplightlyuntilyou feelresistance,thenpullbriskly.
Don’tlet startinglever suddenlyrebound,and lightlyput the leverback.
4) Ifthechokelever hasbeen moved tothe “CLOSE”positiontostarttheengine,
graduallymoveittothe”OPEN”positionasthe enginewarms up.
Chokelever
Open
CAUTION
Startergrip

STOPPINGTHEENGINE
-11 -
6. STOPPINGTHEENGINE
Tostop theengineinanemergency,simplyturntheengine switchtothe “OFF”position.
Undernormalconditions,usethefollowingprocedure.
Turn theengineswitchtothe “OFF”position.
The engineswitch
OFF

MAINTENANCE
-12 -
7. MAINTENANCE
SCHEDULE
REGULARSERVICEPERIOD
Each
use Firstmonthor 20Hrs.
Every3
months
or50
Hrs.
Every6
months
or100
Hrs.
Every
yearor
300 Hrs.
Check
level ○
Engine oil Change ○○
Check ○
Clean ○(1)
Aircleaner
Replace
Sediment Cup Clean ○
Sparkplug Clean ○Replac
e
Valveclearance Check-Adj
ust ○(2)
CovercompheadClean Afterevery300 Hrs. (2)
Fueltankand fuel
filterClean Every2years(Replaceifnecessary)(2)
Fuelline Check Every2years(Replaceifnecessary)(2)
（1）Servicemorefrequentlywhen used in dustyareas.
（2）Theseitems shouldbe servicedbyyourservicing dealerunless you havethe proper
toolsandaremechanicallyproficient.
RENEWINGENGINEOIL
Draintheusedoil while the engineiswarm.Warm oildrainsquicklyandcompletely.
1.Placeasuitablecontainerbelowtheenginetocatchtheusedoil,andthenremovethe
pad anddipstickand thedrainplug.
2.Allowtheusedoil todraincompletely,and thenreinstall the drain plugandpad,and
tightenit securely.
Pleasedisposeof used motoroilinamanner thatiscompatiblewiththeenvironment.
Wesuggest youtakeusedoilinasealedcontainertoyour localrecyclingcenteror
servicestationforreclamation.Donotthrowitinthetrash;pouriton theground;or
downadrain.
3. Withthe engine in alevelposition,filltoupperlimit withtherecommendedoil.

MAINTENANCE
-13 -
Engine oilcapacities
LC154F-1:0.35L
4) Assembling oildipstick andscrewingdown
Recommendedoil:
Use4-strokeautomotivedetergentoil.
Werecommendthatyou useAPISERVICECategorySEor SFoilor equivalenttoSG
grade SAE10W-30.
Youcanusethisbrandoil ifyourareatemperaturelistwithinsomebrandoil
temperaturerange
MAINTAININGAIRCLEANER
Adirtyairfilterwillrestrict airflowtothe carburetor, reducing engine performance.
Ifyouoperatetheengine inverydusty areas, clean the airfiltermore oftenthanspecified
in theMAINTENANCESCHEDULE.
Operatingtheenginewithoutelementorwithadamagedelementwill allowdirttoenter
theengine, causingrapidenginewear.
Drainbolt Sealingwasher
Oilupperlimit
Oildipstick
Environment temperature

MAINTENANCE
-14 -
Aircleaner
1) Screwoffaircleaner boltand removethecover.
2) Removefoamelement
Check element andrenewifdamaged.
Washfoamelement
Washthe cover and filter in warm,soapywater,rinse,and allowdrying thoroughly.Or
clean innonflammablesolventandallowdrying.Dipincleanengineoil,and then
squeezeoutallexcess oil.
3) Cleanthe aircleanerl,coverandrubbergasket,preventing dust enteringinto
carburetor.
4) Reassemblethefoamelement, payingattentiontorubbergasketunderneaththe
element.
5) Reassemblethe aircleaner,andtighten thewingnut securely.
Aircleanerelbow
Supportplate Element
Cover
Locking nut
.NutM6

MAINTENANCE
-15 -
SPARKPLUG
Recommendedsparkplugs: E7RTCor other equivalents.
Anincorrect sparkplugcancauseenginedamage.
1.Disconnect thespark plugcap,andremoveanydirtfromaroundthesparkplug area.
2.Removethespark plugwithasparkplugwrench.
3.Inspectthe sparkplug.Replaceitiftheelectrodesare worn,or ifthe insulator iscracked
or chipped.Thegapshould be 0.028-0.031in (0.70-0.80mm).Correctthegap,if
necessary,
4.Installthesparkplugcarefully, byhand,toavoid cross-threading.
5.Afterthesparkplugseats, tightenwithaspark plug wrenchtocompressthewater.
Ifreinstallingtheusedsparkplug ，tighten1/8-1/4turnafterthesparkplugseats.
Ifinstallinganewsparkplug,tighten1/2turn afterthesparkplugseats.
6.Assemblespark plug.
Sparkplug socket

STORINGYOURENGINE
-16 -
8. STORINGYOUR ENGINE
Ifthe engine hasbeenrunning,allowittocoolforatleasthalfanhourbeforecleaning.
Cleanallexteriorsurfaces,repairanydamagedpaint,andcoatotherareasthatmayrust
withalightfilmofoil.
Waterwithbig pressurecanenter intoaircleanerandmufflerand even intocylinderalong
withairpath,resultingincausingrust and water spatteron thehotenginetodamage
engine, sodon’t washengine untilthe engine is cooled.
1) Change theengine oil.
2) Removethesparkplugs.
3) Pour atablespoon (5-10cc)of cleanengineoilintothecylinder.
4) Pullthestarterrope severaltimestodistributetheoilinthecylinder.
5) Reinstall thespark plugs.
6) Pull the starterrope slowly untilresistanceisfelt.Thiswillclosethevalvessomoisture
cannotentertheenginecylinder.Returnthestarter ropegently.
7) Puttheoutcaseontheengineandplaceintheventilated anddryarea.
CAUTION

Troubleshooting
-17 -
9. Troubleshooting
1Starting difficult
Phenomeno
n PossibleCause Correction
NofuelAddfuel
Air holeclogged Clean clogged
Oilcock clogged wash
Main jetadjustednot
well, orclogged
Readjust, wash
and blow
Oilpath
unpassing
Needle valveorfloat
blocked. Repair orrenew
Fueltoo dirtor
deteriorated Renewfuelor
clear
carburetor
Waterin thefuel
Renewfueland
clean carburetor
Too muchfuel inthe
cylinder
Drainfuel and
clean spark plug
Sparkplug
normal
Fuel
system
abnormal
Oilpath
passing
WrongfuelChangfuel
Carbon depositand
dirtelectrode
Clean carbon
depositanddirt
Damagedinsulator Renewsparkplug
Electrodeburn
through. Renewsparkplug
Spark
normal
Sparkplug
poor
Wronggap Adjustgap
High tension
coil
damaged
Renewhigh
tensioncoil
Ignitercoildamaged
Renewhigh
tensioncoil
Cylinder
pressure
normal
Fuel
system
normal
Spark
normal
Nospark
Magneticfield
strengthnotenough
Chargemagnetic
or renew
Pistonring worn or
broken. Renew
Ring cementation
Clean carbon
deposit
Nowasherornot
tightening
Addwasheror
tighten
Leakingfromjoint Renewgasket
Cylinder
pressure
abnormal
Fuel
system
normal
Igniter
normal
Sparkplug
normal
valvesealingpoor Lap or renew

Troubleshooting
-18 -
2ENGINELACKSPOWER
3 SUDDENLYSTOPTHEENGINE
Phenomen
on PossibleCause Correction
Ignitionsystem IgnitiontimenotrightReplaceignitioncoil
Fuel pathwithairExhaustair
Wrong adjustmentof
main jet Readjustment
Needle valveand main
jet clogged Clean and blow
Oilcock clogged Clean orreplace
Fuelsystem
Carbon depositinthe
combustionchamber Clean carbondeposit
Air cleanerclogged Clean orreplaceIntakesystemIntakesystemclogged Repairorreplace
Piston,cylinder piston
ringworn replace
Leakage between
cylinderandcylinder
head
Replacecylinderhead gasket
Valvegapnotright Readjustment
When
increasing
throttle
speed up
slowlyor
speed
downor
stopthe
engine Compression
poor
Valvesealingleakage Grindingorreplacement
Phenomenon PossibleCause Correction
Nofuel Refueland passthrough
Carburetorclogged Check fuelpath
Carburetorfloatleaking
fuel Repair float
Fuel
system
Needle valveblocked Repair
Spark plugsbreakdown,
carbon depositshort
circuit
Replacespark plug
Sparkplugelectrode
fallenoff Replacespark plug
High tension linefallen
off Repair and replace
Ignition
system
Ignitioncoilbreakdown Replace
Suddenlystopin
running
OthersSeriousscuffingand
valvefallenoff Repair orreplacedamaged parts

Troubleshooting
-19 -
4ENGINEOVERHEATING
Phenomenon PossibleCause Correction
Ignitiontimenotright Replaceignitioncoil
GasolinenotenoughRefill gasoline
Exhaustpipeclogged Clean exhaust pipe
Guidedairshieldclogged Repair
Airpathclogged Clean aircoolingfin
Coolingfandamaged Reinstall
Gasleakingfromring todown Replacedamaged
parts
Gasolineenginespeedtoohigh Checkand governor
speed systemor
replacespeedgear
Gasolineengine
overheating
Crankshaftbearings burnedReplaceor repair
5 Abnormal sound
Phenomenon PossibleCause Correction
Pistonandpistonring
worn Replacedamaged parts
Connectingrod,piston
pinand pin holewornReplacedamaged parts
Crankshaft bearings
worn Replacesor repair
Knockingsound
Pistonringsbroken Replacepiston rings
Combustion charmer
carbondeposittoomuch
Clean carbondeposit
Sparkplugelectrode gap
toonarrow Adjustelectrode gap
Enginefloodedwithfuel
Check carburetor
Wrong fuelReplacefuel
Deflagrationandmetal
sound
Gasolineengine
overheating Refertooverheated troublecolumn
Valvegapadjustment
wrong Readjustvalvegap
OtherabnormalsoundsFlywheel connectionwith
crankshaftloosen Replaceconnectingkey and reinstall

ENGINEPARAMETER
-20 -
10. ENGINE PARAMETER
Model 154F-1
Type Single cylinder4-StrokeForced aircooling OHV
Ratedpower
(kW/3600rpm) 1.6Kw/3600rpm
Maxpower
（Kw/4000rpm）2.0Kw/4000rpm
Maxtorque N·m/rpm 4.5N.m/3000rpm
Fuel consumptionratio
(g/kW·h) ≤450
Speed fluctuating ratio ≤10%
Noise≤dB(A) 93
Bore×Strokemm 54×38
Displacementcc 87
Compression ratio 8:5:1
Lubricating mode Splash
Staring mode Recoilstart
RotationAnti-clockwise(fromP.T.O.Side)
Valveclearancemm Intakevalve0.10-0.15
Exhaust valve0.15-0.20
Sparkpluggap mm 0.7~0.8
Ignition mode Transistorizedmagnetoignition
AircleanerSingle element
Length 310
Width 225
Dimension
mm Height 305
Netweightkg 10.5