25
CS-500P
0.65 mm (0.026 in.)
AIR FILTER
• Check before every use.
• Close choke.
• Loosen cleaner cover knob, 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 SYSTM
• 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.
• Wash the oil tank and filter element with an
approved solvent.
• If damage or deterioration is noted on the oil
suction line, the saw must be removed from
service until it can be inspected by a ECHO-
trained service technician.
Cleaner cover knob
Air cleaner cover
Air filter
Choke control knob
Spark plug
Fuel filer
Fuel tank cap
