String trimmer spark is weak

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  #1  
Old 10-25-08, 10:01 AM
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Join Date: Jul 2003
Location: Montevallo, Alabama
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String trimmer spark is weak

I got a Homelite string trimmer in (model HLT-16), and with my spark tester I get a 3/16" spark but it seems weak. If I put the spark plug in and ground it I barely do get a spark (even with a new spark plug). Could this be a indication of a bad or weak ignition coil?
 
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  #2  
Old 10-25-08, 03:33 PM
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Join Date: Jul 2005
Location: Texas
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Can you get the trimmer to fire at all,by squirting some 2 cycle fuel in the carb.If not try a teaspoon of fuel down the spark plug hole.If it will run and die with fuel in the carb it is a carb issue,if you put fuel down the spark plug,and does not fire, it is a compression problem.The compression should be a least 90# or more.Check it with a compression gauge.I think if it will jump a spark across your spark tester,spark should be ok.Just my opinion.

Jerry
 
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