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  #11  
Old 05-05-2013, 08:22 AM
Frankee Frankee is offline
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Join Date: Nov 2003
Location: SW Florida
Posts: 22
there is a little black plug in the side of the carb hiding the high speed adjustment. heat a small tip screw driver to red hot and try to pry it out. I take a paper clip and bend a very small hook on the end, get it red hot and quickly stick it through the plastic plug. let it cool for 30 seconds and pull it out, the black plastic plug usually comes with it. turn the small screw about 1/4 turn more open (counterclockwise) and it should run fine. many times after a few seconds you can turn the screw back to where it originally was as whatever was obstructing or limiting fuel passes or melts away.
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  #12  
Old 05-05-2013, 08:26 AM
Frankee Frankee is offline
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Join Date: Nov 2003
Location: SW Florida
Posts: 22
Quote:
Originally Posted by clayslandscape View Post
The trimmer starts and idles perfect. It does not seem to get to the speed it used to and will not cut much or anything without bogging down.
sorry I missed this its probably a clogged exhaust port.

remove the muffler and very carefully with the piston all the way down scrape out the carbon in the cylinders exhaust port. try and not scratch the piston or cylinder wall while doing this. they usually recommend a wooden or plastic toll but they don't work very well. use a small screw driver and be careful. once your done pull the plug out (actually pull the plug before you start) and blow the cylinder out before trying to start the engine.
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  #13  
Old 05-05-2013, 10:15 AM
dboyd351 dboyd351 is offline
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Join Date: Sep 2010
Location: Cape Charles, VA
Posts: 863
Quote:
Originally Posted by Frankee View Post
sorry I missed this its probably a clogged exhaust port.

remove the muffler and very carefully with the piston all the way down scrape out the carbon in the cylinders exhaust port. try and not scratch the piston or cylinder wall while doing this. they usually recommend a wooden or plastic toll but they don't work very well. use a small screw driver and be careful. once your done pull the plug out (actually pull the plug before you start) and blow the cylinder out before trying to start the engine.
You can do this, but you also want to check the exhaust screen for clogging with carbon. There is probably a screen in the exhaust that is held on by a metal plate secured with screws. Take off the screws, remove the plate, pull out the screen and check to see if it is clogged with black carbon residue. If it is, hold it with a pair of pliers and burn the carbon off with a torch or lighter, then re-install it. Then you can check the exhaust port as described above.

Also, check to see if the air filter is dirty and inspect the spark plug.

Definitely sounds like an intake or exhaust restriction and the plug is probably now fouled because of the other problem.
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  #14  
Old 05-14-2013, 07:59 PM
beebop beebop is offline
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Join Date: Jul 2012
Location: pembroke ga.
Posts: 20
this will sound strange, but I once had a dirt dobber put mud in the muffler. cleaned out the muffler and it ran fine.
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  #15  
Old 05-15-2013, 06:50 AM
lawnboy dan lawnboy dan is offline
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Join Date: Oct 2005
Location: north florida
Posts: 3,437
i have several spare trimmers in storage in a shed and find dirt dobber nests in them all the time
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