Cotech YT9071A - Starting the Engine; Cold Start Procedure

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7. Starting the Engine
N.B. Pull thestarter handle (8) straight out. If you pull at anangle thestarter cord will rub on thesleeve and soon
wear out. Keep hold of thestarting handle after pulling it and allow it to return slowly. Never let go of thestarting
handle straight after pulling it, it could get tangled or break something on thetrimmer.
Caution! Only start theengine outdoors, in awell-ventilated place; exhaust fumes are poisonous.
N.B. See theTroubleshooting section if thetrimmer doesn’t start after several attempts.
Running in the engine
A new engine should be “run in” by using it at low speed and with low resistance for thefirst few hours.
This will help all themoving parts of theengine to loosen up and mate together better and will ultimately
lengthen theuseful life of theengine.
After theinitial running period theengine can be fully loaded and run at full power. However, do not run
the engine at full throttle for long periods at atime.
7.1 Starting the engine from cold
Cut thetrimmer line to alength of 13 cm before
starting to reduce theload while thetrimmer warms up.
1. Place thegrass trimmer on ahard and
level surface.
2. Press in thetrigger lockout (6) and thetrigger (7),
then press in thethrottle lock (17) on theinside of
thehandle so that thethrottle stays pressed in.
3. Switch theignition switch (5) to I.
4. Lift thechoke lever (13) up to activate thechoke
(close thechoke valve).
5. Pump theprimer pump bulb (9) 10 times (the
primer pump bulb is located on thebottom of
thecarburettor).
6. Pull thestarter handle until you feel some
resistance. Pull thehandle 4 or 5 times gently
but firmly in quick succession (do not pull
thecord thewhole way out on thefirst attempt).
7. As soon as theengine has started or fired,
the choke lever should be lowered to the
“open” position.
8. Let theengine run without any load for
10 seconds once started.
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