it's most likely a fuel issue. pull the starter handle a few times and then remove the spark plug. if it's dry, you're not getting fuel to the cylinder and should proceed with a carb cleaning. if it's wet, check for spark.
Jake
October 2008
sounds like you need to have a presser check done on the cycliner block. Could be a blown head gasket or seals. I owe my own OPE bussiness.
daniel mardis
September 2008
I can answer this question...
my ryobi 725r trimmer won't start in spite of replacing the spark plug & ai?
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