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CS-450
WHEN THE ENGINE IS WARM
CAUTION
Make sure the bar and chain are free from any
obstruction when starting the chain saw.
• Move chain brake lever fully forward to lock chain
brake before starting.
• Conrm there is fuel and chain oil in the tanks.
• Move ignition switch to “RUN” position.
• Securely hold the chain saw as shown and pull
starter handle.
Open choke
Choke control knob
Starter handle
WHEN THE ENGINE IS COLD
CAUTION
Make sure the bar and chain are free from any
obstruction when starting the chain saw.
• Move chain brake lever fully forward to lock chain
brake before starting.
• Fill the fuel tank with fuel mixture. Do not over ll.
• Fill the chain oil tank with lubricant.
Do not over ll.
• Move ignition switch to “RUN” position.
• Push purge pump 3 to 4 times or until fuel is visible in
purge pump.
• Pull choke control knob all the way out. (Choke posi-
tion)
NOTE
Do not pull starter rope out to the maximum pos-
sible position.
Do not allow recoil handle to snap back against the
casing.
• Securely hold the chain saw as shown and pull starter
handle several times until rst ring sound.
• Push choke control knob all the way in.
• Pull starter handle to start the engine.
• When engine starts, immediately squeeze throttle trig-
ger, to release throttle latch.
Start / Run
Ignition switch
Chain brake
Choke
Choke control knob
Throttle trigger lockout
Throttle trigger
Purge pump
CAUTION
Do not increase engine speed while chain brake is
locked.
NOTE
If engine does not start after 5 pulls, use cold start
procedure.
NOTE
If engine does not start after 5 pulls, repeat instruc-
tions.