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CS-303T MAINTENANCE
© 08/2013 ECHO Inc.
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Air Filter
1. Check periodically.
2. Close choke (Cold start position ). This prevents
dirt from entering the carburetor throat when the air
filter is removed. Brush accumulated dirt from air
cleaner area.
3. Remove air cleaner cover. Brush dirt from inside
cover.
4. Remove air filter and lightly brush debris from filter.
Replace filter if it is damaged, fuel soaked, very dirty,
or the rubber sealing edges are deformed.
5. Install air filter cover.
Spark Plug
• Check periodically.
• The standard spark gap is 0.65 mm (0.026 in.).
• Fastening torque:13 to 17 N•m (112 to 150 in•lbf).
1. Remove air cleaner cover and remove spark plug.
2. Correct the spark gap if it is wider or narrower than the standard gap.
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.
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.
1. Using a wire bent into the shape of a hook, pull
strainer out through gas port, and inspect strainer.
2. If the strainer is dirty, clean with suitable cleaning fluid.
3. When the inside of the fuel tank is dirty, rinsing the tank out with gasoline can clean it.
0.65 mm (0.026 in.)