Use and Care Manual
26
CS-501P
Fuel filter
Fuel tank cap
0.65 mm (0.026 in.)
Cleaner cover knob
Air filter
Air cleaner cover
AIR FILTER
• Checkbeforeeveryuse.
• Closechoke( ). 
• Turncleanercoverknobcounterclockwiseby
hand and remove air cleaner cover and air filter.
• Brushoffdustlightly,orcleanwithcompressed
air, or replace the air filter. 
• Reinstallairlterandcover.
CHECK FUEL SYSTEM
• Checkbeforeeveryuse.
• Afterrefueling,makesurefueldoesnotleak
from around fuel pipe, fuel grommet or fuel tank 
cap. 
• Incaseoffuelleakagethereisadangerofre.
Stop using the machine immediately and request 
your dealer to inspect or replace. 
SPARK PLUG
• Checkperiodically.
• Thestandardsparkgapis0.65mm 
(0.026 in.). 
• Correctthesparkgapifitiswiderornarrower
than the standard gap. 
• Fasteningtorque: 15to17N·m 
   (130 to 145 in. lb.). 
FUEL FILTER
• Checkperiodically.
• Donotallowdusttoenterfueltank.
• Acloggedlterwillcausedifcultyinstarting
engine or abnormalities in engine performance. 
• Pullthefuellteroutthroughfuelinletportwith
a piece of steel wire or the like. 
• Whenthelterisdirty,replaceit.
• Whentheinsideofthefueltankisdirty,rinsing
the tank out with gasoline can clean it. 
OIL FILTER
• Checkperiodically.
• Donotallowdusttoenterintooiltank.
• Acloggedoillterwillaffectthenormal 
lubricating system. 
• Pullitoutthroughoilllingholewithapieceof
steel wire or the like. 
• Ifthelterisdirty,washitingasolineorreplace
it. 
• Whentheinsideofthetankgetsdirty,rinsing
the tank out with gasoline can clean it. 
Spark plug
Choke control knob
Oil filter
Oil tank cap










