CSC RX3 - Page 57

CSCRX3ServiceManual
www.CSCMotorcycles.com
56
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Enginediagnosisprocedure:Smokefromexhaust.

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Denseblue‐whitesmokefromexhaustsilenceroffour‐strokeengine
Inspectiftheengineoillevelinthecrankcaseexceedstheuppermark
No
Yes
Starttheengine,screwoffthever nierscaleatthe
high‐speedoperationandinspectifanysmokeis
distributedfromtheoilinlet
Ifthecrankcaseisfilledwithexcessengineoil,the
unnecessaryengineoilshallbedischargedsuchthat
theengineoillevelisbelowtheuppermark
No
Inspectifthevalveandthe
valveguidearehighlyworn
Yes
[1]Inspectifthecylinder,the
pistonandthepistonringare
highlyworn.
[2]Inspectifthepistonringis
ofsufficientelasticityorifitis
stuckinsidetheslot.
[3]Inspectiftheopeningofthe
pistonringsarestaggeredbya
120°angle
Inspectifthelashbetweenvalveandvalveguideis
excessivelybigornot
Yes
No
Thevalveoilsealis
damaged