CSC RX3 - Page 55

CSCRX3ServiceManual
www.CSCMotorcycles.com
54

Enginediagnosisprocedure:Overheatedengine.

Overheatedengine
Inspectiftheoperationanduseisproper
Yes No
①Inspectifthegasolinebrandiswrongorthe
gasolineisstoredforalongtime
②Inspectiftheenginehasbeenrunningathigh
s
p
eedoveralon
g

p
eriodorbeenoverloaded
Inspectthecoolingsystem
Aircoolingengine
Inspectiftheradiationfinispollutedbythemudandsandorcontainsexcessoildirt
Yes
No
Cleaning
Inspectiftheengineisignitedatthecorrecttime
YesNo
①InspectiftheCDIignitiondevicefails
②Inspectifthemagnetorflywheelandthe
triggeringcoilareloosened
Inspectiftheclutchslides
Yes
Thesparkpluginsulation apronisdarkblackandthe
blacksmokeorblowoutisfoundintheexhaust
silencerwhentheengineisrotatedatintermediate
andlowspeed.Theidlespeedperformanceispoor,
theidlespeedisinstableanditiseasytoshutdown.
Theengineis
operationalunderhigh‐speed
operation.
Thesparkplug
insulationapronis
brown.
Normalmixing
proportionof
combustiblemixture
Thesparkpluginsulation
aproniswhite.The
accelerationintervalisfound
intheengine.Theengine
powerisinsufficient.
Densecombustiblemixture
①Inspectiftheaircleanerisblockedornot
②Inspectiftheoxygensensorisoperationalor
not
③Inspectifthefuelnozzleisoperationalornot
Checkifthecylinderventandthe
exhaustsilencerareblockeddueto
theexcessivecarbondeposition
Inspectthe
lubricationsystem
Thincombustiblemixture
No
Clutchslide
Removethesparkplug,observethe
colorofsparkpluginsulationapron
andjudgethemixingproportionof
combustiblemixtureaccordingto
differentabnormalities.
P
rocess

as

per
1
.6
①Inspectifthecrankboxisfilledwithsufficientengineoilornot
②Inspectiftheengineoilinthecrankcasehasexcesslowviscosityorishighlypollutedor
not
③Inspectiftheengineoilfilterisblockedornot
④Inspectiftheoilpumpis
operationalornot
⑤Inspectifthelubricationoilpassageisblockedornot
①Inspectifthefuelfilter
isblockedornot
②Inspectifthefuel
nozzleisblockedornot
③Inspectiftheoxygen
sensorisoperationalor