No fire craftsman chainsaw

is it an older saw ?

doesn't that carby have a hi /low idle adjustable jets

What to do if your chainsaw won't stay running?

arborist101.com/what-to-do-if-your-chainsaw-wont-stay-running/

Idle ports may be plugged or blocked - This is the small ports in the carburetor where the fuel passes through when in idle. ... Vent in the Fuel Cap is plugged - If the vents in the fuel caps are clogged the fuel becomes vacuum locked. ... Starting with the High Speed screw, turn it ...

Craftsman 16" Chainsaw Fix - Won't Run - Fixed! - YouTube

? 1:32
https://www.youtube.com/watch?v=aIUVQziXBPY
Jul 7, 2011 - Uploaded by BriggsRepair
Is this Craftsman 16" chainsaw broken? Hardly. Watch this carburetor fix and how it runs brand new!

Chainsaw won't stay running - DoItYourself.com Community Forums

www.doityourself.com/.../360759-chainsaw-wont-stay-running.html

Sep 20, 2008 - Chainsaw won't stay running. Craftsman 16" chainsaw, fuel/oil ratio 40:1. Saw is 10 years old, used once or twice a season. Last used in spring ... chainsaw wont stay running
Aug 1, 2015
Craftsman chainsaw won't stay running
Oct 30, 2010
Chain saw won't stay running
Oct 2, 2006
Poulan Chainsaw - starts but won't run
Apr 28, 2006
More results from www.doityourself.com

Why won't my chainsaw stay running? ' Yahoo Answers

https://answers.yahoo.com/question/index?qid...

There is no fixed carburetor setting on these engines, just two screws to adjust low-end and high-end operation. Special tool may be required, there are about a half-dozen screw head standards. Check eBay for tool. Get the engine to run and idle fast (idle adjust) so it doesn't stall, adjust low-end screw so that engine doesn't hesitate or sputter when accelerated. Adjust high-end screw to run fast and smooth on full throtle. Readjust idle to normal.

Kill switch is broken or disconnected. Throttle linkage is broken or disconnected or idle is set way too high.

Sound like worn piston rings OR incorrect carb H/L settings

Ok, always use good quaility teo stroke oil, from a manufacturer who actually produces a chainsaw, ie Husqvarna/Stihl/Jonsered etc, all of these oils should be run at 50-1, avoid oil makes you have never heard of.
Starting instructions are as follows, switch the red ignition switch too on ( up ) depress the primmer bulb as many times as it takes to 3/4 fill the bulb ( you cannot flood the engine if you over prime, it is better to over prime ) pull the blue choke fully out, crank the engine until it fires once ( it will only fire once, do not continue to crank the engine after it first fires with the choke still out ) now push the choke fully back in, crank the engine until it fires up and runs on fast idle,now blip the throttle trigger to diss engage the fast idle position, the saw should now drop down to idle.
Regards

there is two adj screws on the side of the saw below the primer bulb. get a small screwdiver flat or phillips depending on the brand, start saw with full thottle and start turning idle screw till you get it to idle then adjust from there

Check the air cleaner, muffler, and fuel filter for any plugging. Check the fuel lines for condition. Make sure the carburetor fasteners are tight. If all are ok, then set the L needle CW to it's stop (lightly), then back out CCW 1-1/2 turns. Start the engine and allow to warm up, then turn the needle CW until the engine runs fairly well, but allows the engine to 'follow the throttle'. Set idle speed screw so that the chain stops moving, but the engine continues to run. Hope this helps!

I would look to the seat safety switch first

You don't want to tighten them down just turn them in until the are just snug and then turn them out.
Start with the low at 2 full turns out and the high at about 1 full turn out. Start the saw and let it idle adjust the low idle to where it runs smooth. Adjust the high until the saw runs as much rpm as you can get at w.o.t. (Wide Open Throttle).