Honda Harmony HRR 216 Erratic engine operation

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  #1  
Old 04-16-12, 05:12 PM
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Honda Harmony HRR 216 Erratic engine operation

The engine continually changes RPM, it is as if I were gunning the motor. It goes from a slow idle up to a fast rev and back down. Any ideas?
 
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Old 04-16-12, 07:13 PM
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The carburetor needs cleaning. Surging is caused by a lean fuel:air mixture.
 
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Old 04-19-12, 04:21 PM
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Seems all it needed was for the fuel cap to be cleaned. It ran well with the cap off so I cleaned it, replaced it and all is well.
 
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Old 04-19-12, 08:35 PM
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Must have had a clogged vent in the cap, but that would let it run okay for a while until a vacuum developed in the tank, then the surge would start. Anyway, glad you got it!
 
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