Only runs on choke

With out the choke, the plug is not likely to have visible fuel condensate. If after priming it fires, sputters and dies then likely there's a problem with fuel delivery. If you're using fuel more than a month old, replace with new fuel (fresh from pump) and mix.


Check the following

• Cracked fuel line(s)
• Fuel filter
• Cracked primer bulb (may not be visible so replace)
• Carburetor mounting has become loose (vacuum leak)
• Carburetor gasket or adapter is cracked

If still doesn't run, then likely the carb needs a clean/rebuild or replace. You could try Seafoam (or similar) additive. There's also a possibility of a crankcase leak.

Keep in mind a china duplicate replacement carburetor for this unit is ~ $10, delivery included (USA), from Ebay or Amazon.

I would check for spark and check the fuel lines, especially if fuel is left in it. Also if fuel left in you will have to empty the lines and carburetor or pull it enough to clear. Another thing to consider is that if fuel was left in it that the carburetor may need a rebuild, replacing the diaphrams.

I hope this is helpful for you.

Hi
Sounds like you have dirt/debris in your caburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Be sure to Check/Clean/Replace your Air Filter, a dirty air filter can make your engine run to rich with fuel.
NOTE: Before you disassemble the carburetor:
Make sure you mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you dissemble the carburetor into separate pieces.
That way you will know which way it goes back together when you reassemble it.
Sometimes you can get by with priming the carburetor or by using starting fluid and letting it run a few times like that, and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Also check you fuel line condition after a while they will degrade and need replacment.
Make sure you are getting spark at the spark plug, to do this:
Remove your spark plug and check to be sure you are getting fire at the spark plug.
You do this by grounding the plug on the head of the engine and pulling the crank rope, if you are getting spark then:
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use COMPRESSED AIR to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their original position before you started.
Once you have your carburetor rebuilt that should solve your problem.
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Hi ccxxv1037ret...

Sounds like you have dirt/debris in your carburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Also check you fuel line condition after a while they will degrade and need replacment.
Make sure you are getting spark at the spark plug, to do this:
Remove your spark plug and check to be sure you are getting fire at the spark plug.
You do this by grounding the plug on the head of the engine and pulling the crank rope, if you are getting spark then:
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
Once you have your carburetor rebuilt that should solve your problem.
This is a FREE answer,Please take time to rate me

Sounds to me like you may have either blocked ports in your carb, or your fuel line is too high in the tank when to go to use it,

CHECK THE SCREEN ON OUTPUT OF THE MUFFLER. ITS CALLED A SPARK ARRESTOR, THESE GET OIL FOULED AND MAKE EM A BEAR TO RUN . CLEAN IT UP AND SHE WILL RUN LIKE A CHAMP, THE CARB MIGHT NEED REBUILDING ,FUEL FILTER AND A SPARK PLUG IS THE FIRST THING TO REPLACE .. IF'N I WAS ANY HELP VOTE FOR ME ...THANKS.. JAY

Check your carburettor mounting screws,they might be loose and it would mean the engine is
getting to much air and it would leak gas. Stephen

If you are certain that you have correcting gaped the plug then the next step is to readjust the low end idle carburetor. If you look you should see two holes in the plastic cover that lead to the flow adjustment screws they may even be out in the open. If they are not labeled H and L (the L is the one you want), check your manual for the correct one. A good place to start is turning the screw all the way in then backing it out 1 1\2 turns. Then check it. If you still have problems do 1\4 turns out. After about one full turn from that you might want to consider taking the carburetor off and removing the float bowl or the bottom for a good cleaning. A sticking float could cause problems with your fuel flow.
Hope this helps.

Check 3 things: 1-are you getting spark/ is the plug good
2. is the carb getting fuel/ is carb "jammed" or is there a line pinched or broken 3. Do you have compression These are most common things to check that usualy resolve the prob.