Use and Care Manual
26
CS-620P
Oil filter
Fuel filter
Oil tank cap
Fuel tank cap
0.65 mm (0.026 in.)
Cleaner cover knob
Air filter
Air cleaner cover
AIR FILTER
•  Check before every use. 
•  Close choke ( ). 
•  Turn cleaner cover knob counterclockwise by 
hand and remove air cleaner cover and air filter.
•  Brush off dust lightly, or clean with compressed 
air, or replace the air filter. 
•  Reinstall air filter and cover. 
CHECK FUEL SYSTEM
•  Check before every use. 
•  After refueling, make sure fuel does not leak 
from around fuel pipe, fuel grommet or fuel tank 
cap. 
•  In case of fuel leakage there is a danger of fire. 
Stop using the machine immediately and request 
your dealer to inspect or replace. 
SPARK PLUG
•  Check periodically. 
•  The standard spark gap is 0.65 mm 
(0.026 in.). 
•  Correct the spark gap if it is wider or narrower 
than the standard gap. 
•  Fastening torque:  15 to 17 N·m 
   (130 to 145 in. lb.). 
FUEL FILTER
•  Check periodically. 
•  Do not allow dust to enter fuel tank. 
•  A clogged filter will cause difficulty in starting 
engine or abnormalities in engine performance. 
•  Pull the fuel filter out through fuel inlet port with 
a piece of steel wire or the like. 
•  When the filter is dirty, replace it. 
•  When the inside of the fuel tank is dirty, rinsing 
the tank out with gasoline can clean it. 
OIL FILTER
•  Check periodically. 
•  Do not allow dust to enter into oil tank. 
•  A clogged oil filter will affect the normal 
lubricating system. 
•  Pull it out through oil filling hole with a piece of 
steel wire or the like. 
•  If the filter is dirty, wash it in gasoline or replace 
it. 
•  When the inside of the tank gets dirty, rinsing 
the tank out with gasoline can clean it. 
Cylinder cover
Spark plug










