TT250Owner’s andServiceManual
www.CSCMotorcycles.com
95
Thefueltanklevelsensorattachestotheundersideofthe
fueltank.
CSCstocksallfuelsystemcomponents.Pleasecontactusat9094450900ifyouneedanyparts.
FuelSystemTroubleshooting
Item Symptom Cause VehicleEffect MaintenanceAction
Fueltank Rustytankbody Waterintrusion Fuelleakage,cloggedfuel
filter
Repairorreplace
thetank
Fuelsupplyimpeded Fuelcapvent
clogged
Startingfailure,engine
stalls
Cleanairvent
Deformedtank Impact Poorappearance Repairorreplace
tank
Fuelhoses Fuelsupplyimpeded Fuel Startingdifficulty,
insufficientpower,
unstableidlespeed
Cleanfilter
Fuelsupplyimpeded Fuelhosekinked Startingdifficulty,
insufficientpower,
unstableidlespeed
Unkinkfuelhose
Fuelleaking Fuelhoseleaking Leakingfuel,insufficient
power,unstableidle
speed
Replacefuelhose,
fuelfilter,orfuel
petcock
Fuelpetcock Fuelleaking Fuelpetcockworn Leakingfuel,insufficient
power,unstableidle
speed
Replacefuel
petcock
Fuelfilter Fuelleaking Crackedfuelfilter Leakingfuel,insufficient
power,unstableidle
speed
Replacefuelfilter
Lossofpower Fuelfilterclogged Difficultstarting,lossof
power
Replacefuelfilter
Fueltank Fueltankrattling Looseormissing
bolt,degradedor
missingfueltank
mountingdonut
Fueltankrattling Replacefueltank
mountingdonut,
tightenfueltank
mountingbolt
Fuelgage Fuelgageinoperable Shortoropen
circuit,defective
fuelgage
Incorrectfuelgage
reading
Checkwiring,
replacefuelsending
unit,replacefuel
gage