If the carb is flooding then it will be an issue with the inlet needle in the carb itself, if the machine has been laid up with stale fuel in it it might just be a case of taking apart and cleaning, if this does not cure it then a replacement inlet needle will be required,however with these small American built machines there is only a complete carb listed. One other thought is check the spark arrestor or exhaust port is not blocked with carbon as this will cause the plug to get wet.
SOURCE: i need a owner user operating instruction manual
http://weborder.husqvarna.com/order_static/doc/HOUS/HOUS2009/HOUS2009_545196750.pdf
here is a link to the pdf file to huskies website hope this helps, you can print off some or all of the owners manual free of charge.
SOURCE: My Husqvarna 128LD primer bulb
The primer bulb does not have to be full of fuel for the carburetor and trimmer to operate correctly. The actual function of the purge/primer bulb is to help pull fresh fuel into the carburetor while at the same time, push old fuel/air out of the carb and back to the fuel tank. You may have bad check valves in the primer base assembly but, the machine can even operate if the bulb is only even 1/2 full or so...Make sure the fuel is moving in only one direction during and after the bulb is pushed and released. If it's not....bad check valves. These valves are very small and fragile and easily damaged by strong solvents, high PSI compressed air...and carburetor bath type cleaners. You didn't state whether the machine will start, run, what have you. Repost if needed. Please vote on this solution.
SOURCE: Bought a new Husqvarna 128LD
Hi mdduran...
Here is a little more info than you need, but if you follow the directions it will get your trimmer going again.
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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:
Sounds like you have dirt/debris in your caburetor jets,fuel passages causing it hard to start.
Check/Clean/Replace your Air Filter, a dirty air filter can make your engine run to rich with fuel.
Note: ALWAYS USE COMPRESSED AIR TO CLEAN YOUR JETS AND PASSAGES, VERY IMPORTANT.
Note:Before you disassemble the carburetor:
Mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you disassemble 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.
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of trimmers.
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.
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.
When you clean your carburetor, 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.The higher air pressure is needed to blow some of the trash/debris from the fuel or 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, or you could also ask the parts man that you get your kit from.
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.
Note:
The little spring inside of the carburetor goes under the float arm.
That is where your fuel inlet needle/float valve is located...on the arm at the end.
Normally there is a small indetion in the carburetor base and a small protrusion on the underneath of the float arm where the spring will be in the right postion for installation.
The spring will set in the indention and you will install the float arm with the needle/float valve and float rod into position over top of the spring,you will push down until it is in position and then you can tighten the screw that holds the float arm assembly in position.
Once you have your carburetor rebuilt that should solve your problem.
Please take time to rate me
SOURCE: I have a brand new
Since the fuel cap is clear, your symptoms point to a bad Ignition Coil. Even though it it brand new, this could be the problem. I would take it back where you purchased it and tell them how it is acting . You may even suggest that you think it's a bad Coil. A new coil could cost you $40, but I sure wouldn't pay for it! I'd make them pay for it.
Good Luck!
Jim
SOURCE: husqvarna 128ld backfires misses but if you put a ignition checker inline with plug it runs ok
sounds like you have a poor connection from the terminal lead to the plug. When the lead is plugged onto the plug it isn't connecting right and when you put the tester in line then it connects correctly at both ends
If you need further help, I’m available over the phone at https://www.6ya.com/expert/kelly_69a0cf1b13789df1
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