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Trouble starting gas trimmer

I always have trouble starting my 2-cycle gas trimmer. I follow the directions and get it to start on Full Choke then move to Half Choke and try starting again. It almost always will start and run at very high RPMs and quickly die. I have never been able to turn the Choke to Run and have it operate normally. The only solution I have found is to run the trimmer somewhere between Full and Half Choke but even then it seems to run too fast and if I let off of the trigger it will die quickly. Is it just defective? I don't know much about fixing motors so I don't know what to look for. Any ideas welcome.

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  • talknmime Jun 08, 2009

    Thanks for your suggestion. I haven't had a chance to try it out yet and I'm not sure I trust myself to take the motor apart.

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  • 1,040 Answers

Yes. It sounds like you need to clean the carburetor. Take the carb. off, disassemble and spray with carb. cleaner. Make sure to clean the small screen in carb. Clean the small portals with a Den Tek Brush, (used for cleaning between teeth). They work great for this job. Reassemble carb. and try starting. If this doesn't cure the problem then you will need to buy a new carb. kit and replace the needle valve, gasket(s), diaphragm, & small screen.

Jim

Posted on Jun 04, 2009

  • Jim Parker
    Jim Parker Jun 08, 2009

    Did this solution solve the problem?

    Jim


  • Jim Parker
    Jim Parker Jun 08, 2009

    Not to worry, you only need to remove the carburetor. You don't have to tear down any part of the motor.

    Thanks for the rating. If you should have any questions about "Drywall Finishing/Patching'", or know someone who does, put your questions to Category: Tools- Building & Power- Hand Tools" at FixYa.com

    Thanks Again,

    Jim


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1 Answer

Looks like oil and fuel is leaking or blowing from exhaust.


John - Husqvarna makes really good power equipment that seldom offers trouble. The unit you are talking about is a 2 cycle system, meaning you mix oil and gas together in lieu of having an oil sump at the bottom of the engine like 4 cycle motors have. First question, did you mix a bottle of One Mix 2 cycle oil to a gallon of regular gas to start off using your machine? If you did, then I would think your unit is badly flooded, which happens a lot with 2 cycle equipment. Try taking out the spark plug and see if the spark plug looks wet from too much fuel. If it is, leave the spark plug out for a day or so to allow the cylinder head to vent the gas fumes. Replace the wet spark plug with a new one and try to start the unit again. Here's a tip: If you do flood a 2 cycle piece of equipment (trimmer, chainsaw, blower, etc.) again, make sure the choke is off and hold the throttle trigger wide open. Pull the started cord several times until the unit starts to run. Keep holding the throttle wide open until it clears itself out. Remember, you run the equipment, it does not run you :-)

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I bought the machine about 3 weeks ,use it 2 times and know it would not start. craftman 2 cycle


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I can't get it started and I"m following directions on side of machine.


Those direction are not accurate all the time, I usually prime mine 4-6 times. put mine on full choke with the trigger pressed and pull 1 time any more will usually flood it, If you have the choke that kicks off after you press the trigger, put the choke back on to half and pull the cord pressing the trigger, Then pull the cord until it starts without pressing the trigger. As before if you press and hold the trigger during the start it will flood these trimmers..This should start the trimmer. You may have to let the trimmer set for about 15 min if it was flooded.

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My troy built starts but will not speed up enough to use even after it warms up. It is 2 years old but only has 3-4 hours of use on it . Can you help me?


Is it 2 cycle or 4 cycle? Meaning, does it take plain gas, or mixed gas?

Clean the plug, clean the carb with either choke cleaner (4 cycle) or wd-40 (2 cycle) by spraying it into the choke hole after you take off the air filter.

You may also want to spray some of the choke cleaner or wd-40 into the gas tank with the gas to help clean out the whole fuel system.

Only use choke cleaner for 4-cycle regular gas units. For mixed gas, use wd-40 in place of choke cleaner.

Try to start it and then go back and forth from half choke to full choke until it starts picking up.

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I hope you have fresh gas and 2-cycle oil mixed up! They always seem to start strong and explosively cut on good, fresh fuel. :D

1:Choke on.

2:Push the primer bulb (rubber ball by the side of the air filter) 3 times.

3:Place trimmer on ground. Grasp the handle, squeezing the throttle fully in left hand. Kneel and give that starter a crisp, sharp tug with your right hand. If the engine "hits", then push in the choke until off. Goto step 4.

If it does not give a hint of life, repeat the tug on the line 2 more times. If it STILL does not start, check for a distinct odor of gasoline. Likely, at this point, it is flooded, proceed to step 5.

4: With choke now off, continue to depress the throttle fully and give it another sharp pull on the starter. If it starts and revs? Let it idle for a minute to warm up, then go to work!

5:With choke OFF, press and hold throttle at full. It may take several pulls on the starter rope to see any life. If after 10 pulls and there is still no life, and still smells of gasoline - time to see the Ex about getting the trimmer looked after for some TLC. :D

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I got me one of these beasts and I can get her to fire for me in just 3 pulls.
(Oh yeah?! I can name that tune in just 2 notes!!)

Seriously....

Use that primer bulb. Use it with prejudice. Do NOT be afraid of it. What does this mean? Yes. Push it 10 times.

Choke full on.

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Move the choke completely off, continue to let trimmer idle for at least a minute to warm up the oil and block.

Git to whackin' that yard down. :D I just love my 575ES! (Polesaw attachment for the win)

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