Question about Craftsman 4 Cycle Blower/Vac

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Won't start , changed the fuel out ot the tank , cleaned and gapped the spark plug and cleaned out the spark arrester screen. Unit is a four cylcle Craftsman about a year old.

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How fresh is your fuel? Have you cleaned the carb? Get some carb cleaner and spray in all the holes to see if that will help.

Posted on Aug 24, 2009

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Why does saw die after running for a few minutes.


Well, if it is you lucky day it is a plugged vent to the fuel tank!! Loosen the fuel tank cap and see if unit will continue to run with out a problem. If the vent is plugged after a few minutes as the fuel leaves the tank a vacuum is created and prevents the fuel from entering the carburetor.
chainsaw fuel tank vent line repair

If not so lucky it can be the ignition coil that fails when it gets hot!
Chainsaw Ignition Coil Test

One other possibility is that the chain gets tight on the bar when hot. Check tension and oilier. Manually oil just to check it out.

Last item can be fuel/oil mix!! If confusion or what ever has no oil in the mix the piston gets tight against the cylinder creating excessive friction stalling the engine and potential engine damage!!

Feb 27, 2016 | Garden

1 Answer

Husqvarna


1. [Broken Throttle cable?] I would start by making sure that when you press trigger you see the throttle cable moving linkage on carb.

2. [Spark arrester clogged?] There is a small metal screen at muffler that is known for getting clogged with carbon deposits and will prevent air/exhaust from leaving engine properly, causing it to bogg down. Try removing it and test run, if that fixes it clean or replace spark arrester.

3. [Incorrect spark plug?] If spark plug was changed recently and is not the correct one for this model trimmer it can do that. Or, if spark plug is fouled(too much carbon built up/or incorrect gap).

4. [Bad carburetor?] if there has been water in fuel, or carb has stiff diaphram inside it will not run properly.

5. [Needs service?] if none of the above work you may have to take it in for repair.

Aug 18, 2014 | Husqvarna 323R 24.5cc 2 Stroke Gas Powered...

1 Answer

17 hp briggs stratton ohc


Clean or change air filter. Clean, gap or change spark plug. Empty gas tank add fresh gas with Stabil. When spark plug is removed pull rope several times to blow out cylinder. Spray starter fluid in spark plug hole before replacing spark plug. Clean outside of carb so choke works freely. Spray starter fluid into carb breather hole with air filter removed and try to start. if running replace air filter and cover. If no start disassemble carb and clean. If no start replace carb.

Jun 19, 2013 | Garden

1 Answer

Husqvarna weed eater starts , but blows alot of smoke & then stalls out


Rod, Carb. may need adjusted, try loosening gas cap and start to see if cap vent plugged, there is a in tank fuel filter that you could fish out and remove to see if it is plugged. If still not running remove muffler and clean spark arrester screen, if screen plugged the trimmer will do this.
Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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Sep 06, 2012 | Husqvarna 128 LD Weedeater

1 Answer

14" Mac Cat gas engine won't start. Changed spark


Check tank fuel filter. safe way, put hose on end of filter blow through hose, fuel should come out of filter easily.

Sep 04, 2011 | McCulloch Garden

1 Answer

Won't start fuel pump replaced new tank and relay have fuel after fuel filter runs if I put fuel down throttle body. this is on a4,3.


Nephew had similar problem on different vehicle - had spark to plugs, limited gas, everthing else checked. I did one thing first - check for two fuel filters - one in the tank was only screens and one in the line itself. Found a little in line filter just outside of engine compartment under car next to frame that looked like it had never been changed - partially clogged - replaced it.Almost ran but would not keep running. I had rotor and cap pulled - found that the screw holding rotor in place was loose. The rotor edge next to plug wire leads was chopped up and the cap's plug wire leads were heavily oxidized. Replaced them and got it running but a little rough. Pulled the spark plugs and found gaps from 25 - 100 ---replaced the plugs with correct gapping and it ran really well.

Aug 25, 2011 | 1991 GMC S-15 Jimmy

1 Answer

Echo shred n vac starts,idles, runs to about half power then bogs


Check the grommet that sits on top of tank where lines from go carb. Grommet may be rotten and crack. Try that. Have you ever replace the carb repair kit? The diaphram may be torn, defoam or have holes in them. Carb kit cost arount $10, but don't mess with the welch plug or screen in carb.

Feb 16, 2010 | ECHO, Inc. Shred n Vac

1 Answer

I have a McCulloch Model PM 310 , Gas Chainsaw. How would the spark plug be accessed?....Rich


Storing a chain saw for longer than 30 days requires storage maintenance. Unless the storage instructions are followed, fuel remaining in the carburetor will evaporate, leaving gum-like deposits. This could lead to difficult starting and result in costly repairs. Never store a chain saw for longer than 30 days without performing the following procedures:
Remove the fuel tank cap slowly to release any pressure in tank. Carefullydrain the fuel tank.Start the engine and let it run until the unit stops to remove fuel from carburetor. Allow the engine to cool (approximately 5 minutes).
Using a spark plug wrench, remove the spark plug.
Pour 1 teaspoon of clean 2-cycle oil into the combustion chamber. Pull starter rope slowly several times to coat internal components. Replace spark plug.
Store the unit in a dry place and away from possible sources of ignition such as a furnace, gas hot water heater, gas dryer,etc. When removing the unit from storage, be sure to perform the following procedures:Remove spark plug. Pull starter rope briskly to clear excess oil from combustion chamber.Clean and gap spark plug or install a new spark plug with proper gap.Prepare unit for operation.Fill fuel tank with proper fuel/oil mixture.

This will help. Thanks, please keep updated. please do rate the solution positively .thank you for using fixya

Dec 15, 2009 | McCulloch MC1275 Steam Vacuum

1 Answer

Why does my four wheeler keep back fireing and not starting?//


Could be air block in the petrol tube and clean the carborator and remove the dust and dirt to run the unit. Cleran the petrol tank atleast once in a year to avoid dust formation at the bottom of the fuel tank. Adjust the gap in the spark plug to standard specification to avoid back fireing.

Jul 07, 2009 | 2003 Yamaha YZ 250

2 Answers

Lawnmower wont start


Possible Causes Corrective actions
Unit will not start Control handle is not engaged Engage control handle spacer.gif spacer.gif
Spark plug wire is disconnected Connect spark plug wire spacer.gif spacer.gif
Fuel tank empty or stale fuel Replace with clean, fresh gas spacer.gif spacer.gif
Blocked fuel line Clean fuel line spacer.gif spacer.gif
Faulty spark plug Replace, clean, or adjust gap spacer.gif spacer.gif
Engine flooded Wait to restart, do not prime spacer.gif spacer.gif
Air filter filled with dirt or debris Replace or clean air filter

May 23, 2009 | Mtd 22" Yard Machine Push Mower

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