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Lost manual it has not been started in along time I need to know how to change spark plug ,clean carb. correct fuel mix and what ever else I need to do.

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To change the spark plug, remove the top cylinder cover, take a 19mm box spanner ( a pretty standard chainsaw combi wrench ) turn the plug anti clockwise to remove, re fit clean or new plug, wash the air filter in soapy water and allow to air dry, if the saw has a primer bulb, fill the saw with fresh fuel and prime 15/20 times until the bulb is 3/4 full of fresh fuel, this will flush the carb through, so there should be no need to remove and clean the carb.

Posted on Apr 10, 2011

  • Andrew White Apr 10, 2011

    The fuel oil mix is dependant on the two stroke oil you buy, try to buy from a chainsaw shop a good quaility oil designed to run at 50-1


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Posted on Jan 02, 2017

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I cleaned ports, float crankcase tube, changed out and cleaned fuel tank. Put new spark plug in. problem is smoke from carb and I find fuel mixed with oil on spark plug and smoke coming from carb.

Chances are the float level in the carburetor is set too high and the fuel is flooding. you need to set the float level and this should correct your problem

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Toro Power Clear 418 snowblower wont start after sitting through summer

Check the fuel line to the tank, and see if another one is inside, maybe it fell off, or it's filter is clogged.

Nov 29, 2013 | Toro Power Clear 418 ZR - Single Stage...

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Hi i have a homelite chain saw csp 3314 and is not been use for tow years ,i try to start but refuses to ,it has a good spark ,i don't know why is not starting?? any help i will apresiete.

Most often this is because the gas has "soured" - it breaks down into a varnish compound, which is easily recognized by a foul smell in the gas tank that does not smell like gas.

You need to drain all the old gas. Pull the spark plug (clean it also- using a new plug is even better!), pump the primer bulb, and then pull the cord twenty times or so with no plug in the engine to try and purge all the old fuel. Get as much as possible out of the fuel system- the primer bulb should only have a drop or two at most in it.

Next, put in fresh gas along with a little carb cleaner- mix a gallon of gas with half an ounce of carb cleaner, plus whatever amount of two stroke oil you normally mix per gallon. Put the plug back in. Press the primer bulb 3 times, set the choke, and try to start. Make sure that you can see fuel in the primer bulb.

Your chainsaw will probably fire on the first or second pull, but not run (if it does start and run, GREAT!) On the third pull, most often it will start....if not....

Pump the primer three more times, and try the starting procedure again, and hopefully it will start, possibly running rough for the first minute.

If you still cannot get it started, pull the plug, clean and dry it, and try again... it is best at this point if you have a brand new plug to use it instead.

If your saw will still not start and run steady, you probably have a "varnished carb" - buildup from the gas souring has clogged the needle valve/orifice, and the float may be stuck. You will need to service the carb.

Good Luck, and Thank You for using FixYa!

May 08, 2011 | Garden

1 Answer

My yard machine snow blower won't start, just trying to find out what and how I can check for something small that may be causing it. I replaced the spark plug already, is there a filter on this to...

No there is no filter. Is there a fuel shutoff lever?
Most likely you are not getting gas through the carb. Having the snowthrower sit around can cause todays fuels to gum up the carb. Plus, today's fuels, especially the ethanol blends absorb a lot of water and it can sit in the fuel bowl.
This is a 32:1 gas/oil mix engine so I can't use my normal emergency starting methods.
I suggest you remove the spark plug and pour 2 tablespoons of fuel mix into the cylinder. Replace the plug, leave the choke open, and pull the starter rope 5 or 6 times.
It should "pop" once or twice. If it does close the choke and start it normally.
Try this a second time.
If it doesn't start open up the blower enough to see the air intake for the carb. Spray a one second burst of wd-40 into the carb. Try to start it this way.
After that I would remove the fuel line from the carb and check to see if fuel is getting to the carb. Then I would remove the fuel bowl on the carb and clean it out and make sure fuel is coming through the float valve.
Here is a manual for your motor. Click the download link to save it to your computer.
Let me know how it goes and don't forget to rate my answer! Good luck!

Jan 06, 2011 | Mtd Products Yard Machines 158CC Tiller

2 Answers

Hi, I have Husqvarna chain saw model 357XP serial no 2006100483. The saw has suddenly refused to start and engine does not even fire. I was using it one day and on the next could not get it to start. I...

Hi workflow,

Let me thank you for the excellent description of your problem, the symptoms and whats been done so far.

You have done everything I would have done so far.
If you have fuel, compression and spark, there is only one thing left, air.

  • Check the air filter for particulate matter and clean if needed
  • Check the choke linkage
  • Check the carb / trigger linkage
Withe the plug out, pull the cord a few times. The fuel air mix should come out as a fine mist.

How high is the compression? >80psi?

Have you tried starting ether?

Off the top of my head,


Aug 30, 2010 | Husqvarna Garden

2 Answers

Blower would not run at anything above 1/2 throttle. then it would not start at all. put a carb kit in and not it starts and runs at higher rpms but when it warms up it dies. when snapping the throttle it...

If the gas is old, for example, last season, change the fuel ..drain the tank, carb and fuel line.
Also clean the air filter... this can have similar effects on start/run.

Pull the spark plug and clean it also, you can use spray carb cleaner on the tip, and then clean with fine sandpaper.
then replace the fuel with fresh fuel/oil mix.

A good spray can of carb clean will work to clean any build up in the carb jets, fuel line etc...

Oct 30, 2009 | Ryobi Backpack Blower 25.4cc

1 Answer

Got given a old yz 80 changed piston and rings its fireing but wont start?

I'll start with the obvious.... have you tried removing the plug, putting a little gas in the cylinder, putting the plug in and wire back on and then kicking it over? If it starts, runs for a couple seconds and dies (burns off the gas you just put in there), it's a fuel or fuel delivery problem. Has the carb been cleaned, the needle and seat checked, the float height checked, air passages cleaned out, etc.? These carbs are famous for getting gummed up after sitting a while. (I have 4 dirtbikes and clean the carbs every spring before firing them up for the first time). Is the oil to fuel mix ratio correct? Too much oil will cause this as well. If it doesn't start with gas poured in the cylinder as mentioned above, check to see how strong of a spark you have and if the plug is gapped correctly. The spark should be bright blue. Hopefully you know how to check this, but if not, take the plug out, put the plug wire back on the plug and lay the electrode end of the plug (spark end) up against the cylinder head with the end of the plug touching metal and kick the kick starter over. You should see a bright blue spark. If it's a weak spark (not bright blue) it's an electrical problem such as a faulty coil. (WARNING: DO NOT HOLD THE PLUG IN PLACE WITH YOUR BARE HAND when kicking it over. You will get zapped good if the coil/spark are ok.) Try these troubleshooting tips and then let us know the result. We'll go from there.

Oct 29, 2009 | 2003 Yamaha YZ 125

1 Answer

Starts then stops , acts like it ran out of gas

Make sure that your fuel mix is correct and clean. Also make sure there are no air bubbles trapped in the fuel line. Agitate the fuel tank to make sure there is no blockage caused by dirt and debris, and if you have a fuel filter fitted, then make sure it is clean and does not need replacing.

Next check the air filter to make sure it is clean.

Next check that the spark plug is whitish grey and matt in colour and not back, oily or pure white. If so then change the plug and set the correct spark gap for the particular type of plug you are using. If the plug is black and sooty or pure white matt then the fuel mix is incorrect and you will need to adjust this. Black indicates too much oil in the 2 stroke and burning low and the white indicates over temperature and probably not enough oil in the fuel mix or using to high an octane rating. If it is oily then there is far too much oil in the fuel mix and if you are using a 4 stroke or a 2 stroke with additional lubrication then there is oil leaking into the combustion area most likely caused by a worn or cracked piston ring. After that check that the carb is operating correctly and opens fully when starting and closes as the engine warms upon idle. Also make sure that it idles evenly. Also if it stops when you throttle it then look at the spark cap to make sure it is not loose or damaged and produces enough voltage to fire up the plug correctly otherwise you may have a generator issue or a carb problem or air filter problem or something restring air flow. Also check the engine casing over for any cracks or damage.

Oct 02, 2009 | Troy Bilt Tb70ss Gas Trimmer

1 Answer

My poulan chain saw sat for about 2 yrs with gas in it. I emptied the tank, put new gas in it along with a carburator cleaner but it will not start. lost the manual for it and don,t know which position to...

Empty out the gas and replace with proper gasoline mixed with oil in the proper proportion. Always use a good quality 2-cycle oil that contains a fuel stabilizer.
To start the generic chainsaw, follow these steps:
1. Pull the choke all the way out
2. Press the fuel bulb serveral times to prime the carb - you can feel when the fuel flows into it.
3. Set the lock on the trigger to full speed.
4. Now, pull the starter rope until the saw sounds like it tried to start.
5. Press the choke in to the 1/2 way position.
6. Pull the rope until it starts.
7. Release the trigger lock and push the choke all the way in.

If starting it when it is warn, skip steps 1 and 4.
It is unlikely that the spark plug is the problem. If you replace it without properly setting the gap, you may make it worse. If you start trying to adjust the carb without knowing exactly what you are doing, you will make it much worse, You can try spraying some carb cleaner into the carb and pulling the rope to such the cleaner into the jets.
In the future, always add fuel stabilizer or oil with a stabilizer to you gas/oil mix. This prevents the varnishing caused by aging gasoline.

Jul 11, 2009 | Poulan Garden

1 Answer

Bike wont start

sounds like carb issues, check fuel contamination and **** in carb first.

Mar 22, 2009 | 1998 kawasaki KDX 200

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