Question about Poulan Pe550 Gas Edger

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Runs on starting fluid, not fuel. cleaned carb with carb cleaner(aerosol) ,still won't run. Primer (purge) bulb doesn't work properly. Spark plug dry, fuel lines clean. Diaphram problem or something bigger (carb)?

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Try spraying a little gas where you spray starter fluid. If it runs you may have to install diaphram kit. If it has a choke can get around primer not working.

Posted on Oct 01, 2010

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4 Answers

Tiller will not start


Check first whether you are actually getting a spark. Remove the plug, re-attach the spark lead and place the body of the plug in contact with the engine block. If the engine has a cowling which makes this difficult, you can use a socket from a socket wrench set or something similar to bridge the gap. Alternatively get an assistant to hold the plug against the engine with a plastic clothes peg. Pull the cord and check the spark is ok. It may be easier to see it in the shade or indoors (Don't run an engine too long indoors).
Problems with 2-cycle engines are often due to fuel flow issues in the carburetor. If the engine has a primer, make sure it is sucking up fuel. Look inside the tank and check that gas runs out of the return line when the button is pressed (the line without the filter).
Clogged jets can cause problems. These can be cleaned with a carburetor cleaning aerosol.
The valve in the gas tank cap can become clogged with particles of dirt. Check this is clear.
For a pictorial guide to cleaning a carburetor on a 2-cycle engine (used on string trimmers, chain saws, hedge trimmers and some lawn mowers), see my guide at the link below
String Trimmer Won Work 2 Stroke Engine and Carburetor Troubleshooting

May 16, 2014 | Mantis 2-Cycle Tiller

2 Answers

Ryobi 410 mini tiller w/Walbro WT149A primer bulb won't prime. New bulb, new fuel lines, hooked up right, carb cleaned. Been sitting for several years.Runs when fuel is pumped into the fuel inlet.


hello sir, my machine will only start when pumping primmer bulb or squirting fluid in the carburetor than stops. the fuel line has broken off, in most small carburetors this is a ongoing problem.old fuel will crystallize when left in tank for a long time.plugging up ports, fuel lines, small screen in carburetor.fuel lines will dissolve clogging carb.this is why it will run when the choke is on creating a vacuum to where there is fuel forced in the carb to rum,also the gas will evaporate leaving the oil behind clogging up carb.the thing to do is remove carb. and clean out,replacing gaskets or fuel line if necessary.use carb cleaner to clean out carb.make sure to make note where fuel line go.the fuel filter broke off of fuel line letting debris get in carb plugging it up.the muffler is known to clog up a lot on these machines where they want run. the compression should be 60 to 120 lbs any thing below 60 is junk. when adjusting the carb screws turn in all the way than turnout 1 1/4 turns turn in slow until machine runs also you need to check for spark by removing plug and grounding against engine to check spark, ok.a new spark plug would be a good ideal too , if you are going to make these repairs use new fuel line and filter,hope this helps,any comments welcome,thank you, !!

Feb 21, 2012 | Garden

1 Answer

21A-121R900 Won't stay running


hello sir, my machine will only start when pumping primmer bulb or squirting fluid in the carburetor than stops. the fuel line has broken off, in most small carburetors this is a ongoing problem.old fuel will crystallize when left in tank for a long time.plugging up ports, fuel lines, small screen in carburetor.fuel lines will dissolve clogging carb.this is why it will run when the choke is on creating a vacuum to where there is fuel forced in the carb to rum,also the gas will evaporate leaving the oil behind clogging up carb.the thing to do is remove carb. and clean out,replacing gaskets or fuel line if necessary.use carb cleaner to clean out carb.make sure to make note where fuel line go.the fuel filter broke off of fuel line letting debris get in carb plugging it up.the muffler is known to clog up a lot on these machines where they want run. the compression should be 60 to 120 lbs any thing below 60 is junk. when adjusting the carb screws turn in all the way than turnout 1 1/4 turns turn in slow until machine runs also you need to check for spark by removing plug and grounding against engine to check spark, ok.a new spark plug would be a good ideal too , if you are going to make these repairs use new fuel line and filter,hope this helps,any comments welcome,thank you, ~~

Feb 14, 2012 | Yard Machines Garden

2 Answers

My echo pb-2601 leafblower wont start


if you have spark then you have a fuel delivery problem or exhaust clogged

Nov 12, 2011 | Garden

1 Answer

My Toro Model 20070 that until now has always started on the first pull, won't start at all now. It started fine last week. It's getting spark (a little more yellow than blue). I replaced the plug,...


Hold the butterfly valve (behind air filter) open with a screwdriver, while somebody else tries to start it. Toro has had problems with atuomatic chokes. If it fires right up, thats the problem! If so, just wire it open, or contact Toro for a repair kit. Try using starting fluid, not carb cleaner, and spray directly into the head through the spark plug port. If you didn't do it already, blow out all the ports in the carb with compressed air, or carb cleaner. Also, be sure the safety lever is engaging correctly (top bar on handle) at the engine. Lawn mowers are pretty simple, so the problem is most likely simple too.

Sep 24, 2011 | Toro Personal Pace CARB Walk Power Mower

2 Answers

Toro GTS 20332 (bought it 12 months ago) won't run


I believe that Toro Guarantees to start 1 Pull, was gas left in it all winter?, If so this is'nt covered under warranty, cause gas is to be ran out or dumped out at end of season this will prevent any gumming up of carb . did you completely disassemble carb? does it have a primer on it, those gskts need replacing, clean out the jet in bottum of float bowl,small holes,sometimes missed and remove and check your needle/seat to make sure that when float drops gas runs out then lift float up and gas should stop. hope this helped you,another thing spray carb cleaner in carb and pull over and see if it will start that way enough to keep running with choke to see if it will **** gas into it

May 16, 2011 | Toro Garden

1 Answer

Hello, I have an Echo SRM-3100 weed wacker 2-cycle that i can start but can't get it to run. i checked the fuel lines and they are clear, i took apart the carb and eveything is clean and in good...


Just to clarify, the purge bulbs actual purpose is to purge the carburetor of air and old fuel and help to pull fresh fuel from the tank to the carburetor. Some units have a purge bulb located on the carb and some have the bulb remotely mounted. I think on your model, the bulb is atop the carburetor on the primer base assembly. If the bub doesn't release, then there possibly is a problem in the fuel tank fuel cap vent. Check the cap and make sure the little duckbill vent is clean and clear. A vapor lock type situation can develop when atmospheric pressured air can't enter the fuel tank. You may also want to remove the purge bulb cover and the bulb and spray the top of the primer base with WD-40. You can remove the fuel lines and spray some into the carb as well. This will maybe clean and lubricate the sensitive check valves that may be sticking in the carburetor, causing your problem. Try this more than once if it doesn't seem to help at first. Internal check valves control fuel flow in and out of the carburetor and they do occasionally malfunction.

May 15, 2011 | Garden

1 Answer

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

2 Answers

Troy Bilt TB 465SS Pony 4 cycle weed trimmer won't start


Sounds like you need to take the carb. apart and clean it. I like to use a Den Tek Brush, (used for cleaning teeth), to clean the small ports in carb. they work great for this job. Make sure to either clean or replace the small screen in thcarb. as well.

Jim

May 24, 2009 | Troy Bilt Tb70ss Gas Trimmer

2 Answers

Willnot start


Check and,or; replace your fuel filter

May 20, 2009 | Homelite 'Yard Broom' Leaf Blower

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