My saw starts and runs "roughly" With the choke

check for clogged jets or the wrong jet setting, most saws are set at one and one,don't go any lower than 3/4 on the high

1. Make sure dead mans handle is fully depressed
2. Squeeze throttle in
3. Push choke switch all the way down
4. Pull saw over till it fires
5. Click choke switch up one position to half choke
6. Pull over saw until it fires up, saw should start running at high rev's
7 .'blip' throttle for saw to return to tick over.

If the choke switch doesn't stay down in section '3' check chokelinkage to carb.

more information please..

To lock the choke on:-
1. depress dead mans trigget on top of back handle
2. squeeze throttle trigger fully in.
3. slide on switch fully down to 'full choke' position. 'it should stay there'.
4. Pull saw over until it fires once.
5. click 'on' switch up one position to 'half choke'
6. pull saw over again, saw should start running and be revving high.
7. 'blip' throttle, saw should stop revving and run on tick over.

Starting procedure for Stihl.
(cold starting)

Place saw on floor (flat clear surface).
Make sure chain break is on.
Hold throttle in, while pushing on switch all the way down.
Place right foot in the flat of the rear handle.
Place left hand on top handle.
Pull starter handle until saw fires, it should then cut out.
Click the starter switch up 1 click to half choke.
Pull starter handle again untilsawfires up. note: it will be reving because the trigger is loched on, (blip the throttle once) and it should go to tick over.

There should be np need to keep playing with the choke when the saw is warm. No need to lock the trigger when starting warm.

Warm starting is performed by holding the rear handle between the thighs rather than on the floor.

take off the muffler and try it if ok then open it up and clean the carbon from the screen

Sure sounds like your fuel filter needs to be changed. If you can't blow through the filter with your breath then it is bad.

There are two types of choke systems, the basic choke has a ball and spring in the carb body which locks the choke either in or out, the other type is connected to the half throttle position, once pulled out it stays out, however if you lift the throttle trigger it will go back in on its own, queation, are you holding the throttle trigger whilst trying to start it, if so this is why it will not stay out, if this is not the case, pull the choke out with a little more force, it may be just not coming out enought to lock.

Genral starting procedure on a chain saw is as follows, put fresh fuel into the fuel tank, top up the chain oil tank,switch the ignition on, if the saw has a half throttle position on the trigger lock this, if the saw has a primer depress this as many times as it takes to 3/4 fill the bulb, pull the choke fully out, if it has a deco valve push this in, now place the saw on the ground with the chain brake on and crank the engine ( always have the saw body between you and the cutter bar,NO left hand starting, NO drop starting ) the engine will only fire once on full choke, do not continue to crank engine after the first fire or you will flood the engine, push the choke back in, crank the engine until it fires up and runs,release the chain brake and blip the throttle to release the half throttle device.

If still under warranty have it serviced (authorized dealer not Joe's lawn mower). There should not be a fee (paid by Husqvarna). There have been carburetor problems. If you adjust it your warranty will likely be void; Joe's small engine service just as likely to void any warranty. Are you using a fresh 40:1 fuel oil mix. The will not start with choke set is normal. Start procedure in your OM says listen for sputter and disengage choke. Almost all new saws have similar start procedure.
Start Procedure
Cold:

1. Ignition on/off to on.
2. Set compression release – optional step even if saw is equipped with a compression release.
3. Pull (close) choke, set fast idle (done when choke closed on some saws); pull starter and listen for an attempt to start. once heard (usually two pulls; no more than 4).
4. Set compression release – optional step even if saw is equipped with a compression release.
5. Push (open) choke pull starter until it starts. (usually first pull).

Warm:

1. Ignition on/off to on.
2. Set compression release – optional step even if saw is equipped with a compression release.
3. Pull (close) choke, set fast idle (done when choke closed on some saws) – Do not pull with choke closed.
4. Push (open) choke, pull starter until it starts. (usually first pull).

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Lou
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