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Old 07-14-2010 | 06:12 PM
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DwightMann
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Joined: Sep 2004
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From: Mohave Valley, AZ
Default YS 120

My YS120 engine does not idle well. The RPM will remain high (4000) for a few seconds then drop to 2500 for a couple seconds and jump back up. It does this cycle a few times then dies.