X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost02.isp.att.net ([207.115.11.52] verified) by logan.com (CommuniGate Pro SMTP 5.3.6) with ESMTP id 4247195 for flyrotary@lancaironline.net; Tue, 04 May 2010 11:46:43 -0400 Received-SPF: none receiver=logan.com; client-ip=207.115.11.52; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-85-113-131.mco.bellsouth.net[98.85.113.131]) by isp.att.net (frfwmhc02) with SMTP id <20100504154606H0200i220ce>; Tue, 4 May 2010 15:46:06 +0000 X-Originating-IP: [98.85.113.131] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: tuning issues Date: Tue, 4 May 2010 11:46:13 -0400 Message-ID: <5A1339AEC26F433AA6937F42A4D86F2E@Desktop> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcrrDUSCvd6kGBxfRECkNOyIGmCnagAkwiHA X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 After I get the engine running smoothly in a range, it will occasionally hiccup. When it does, the mixture will then go down sometimes off the scale, then come back to where it was. I have not noticed any dips in the MAP table at these locations. Any ideas, suggestions? Bill B