CSC TT250 - Steering System; Steering Stem Bearing Adjustment

TT250Owner’s andServiceManual
www.CSCMotorcycles.com
54

Item Symptom Cause VehicleEffect MaintenanceAction
Forkhasoilleakatthe
oilseal
Scratchesfoundon
surfaceoffork
Poorforkaction Replaceforkorseal
Oilleak Oilsealabradedor
damaged
Poorforkaction,
leakingfork
Replaceoilseal
Forkbecomessoft Forkoillow Poorforkaction Addoilasrequired
Rearshock
absorber
Rearshockabsorbersoft Rearshockabsorber
springbrokenorsoft
springforce
Rearsuspensionoverly
soft
Replacerearshock
absorber
Defectiverearshock
absorber
Rearshockabsorber
leak
Rearsuspensionoverly
soft,leakage
Replacerearshock
absorber
Aging,exposureto
contaminants
Therubbersheath
abradedorcracked
Rearsuspensionoverly
softorharsh
Replacerearshock
absorber

SteeringSystem

Thehandlebar,forkyoke,andsteeringcomponentsshouldbeinspectedandadjustedperiodicallyto
checkforanyabnormalconditions.Thefrontforksshouldturnevenlyfromsidetosidewithno
interferenceorlooseness.Applythefrontbrakeandrockthemotorcyclebackandforth.Thereshould
be
onloosenessorclickinginthesteeringheadarea.

SteeringStemBearingAdjustment

ThissectionoftheTT250Owner’sandServiceManualaddressessteeringstembearingadjustment.You
onlyneedtodothisifthereisfreeplayinthesteeringstembearings,orifthebearingsareadjustedtoo
tight.Sometimesyoucandetectthisbyapplyingthefrontbrakewhencomingtoastop,orbyrocking
thebikebackandforthwiththefrontbrakeapplied.Ifyouhearorfeelclickinginthefrontend,itis
likely youneedtoadjustthesteeringstembearings.

Thebestwaytotestforappropriatesteeringstembearing
adjustmentistoputthebikeonalifttogetthefrontwheel
offtheground.Oncethewheelisofftheground,grabthe
frontforksnearthefront axleandpullthefrontendback
andforth.If
youfeelanyplayandhearthesteeringstem
bearingsclicking,thesteeringstembearingsaretoo
loose.Next,turnthefrontwheelfromlefttorightandfrom
righttoleft.Ifyoufeeltoomuchresistance(it’sasubjective
assessment),thesteeringstembearingsaretootight.
In
thephotoshere,thefueltank,theseat,andtherearbodypanelsareremoved.Youdon’tneedto
removethesecomponentsforthismaintenanceactivity.WehadaTT250withthepanelsremovedand
weleftthebikeinthatconfigurationfortheseinstructions.