Question about 1993 Ford Mustang
just got a 125 SYM
when i cruise at very low rpm - for a sec the exhuast makes wierd humming sound
This sounds like (passing) resonance -- a natural phenomenon. You might be able to eliminate it by just tightening some bolts in the exhaust system -- or, it may never go away, or it may stop of its own accord.
Posted on May 13, 2009
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Posted on Jan 02, 2017
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