X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-d06.mx.aol.com ([205.188.157.38] verified) by logan.com (CommuniGate Pro SMTP 5.2.15) with ESMTP id 3760292 for flyrotary@lancaironline.net; Wed, 15 Jul 2009 13:17:10 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.38; envelope-from=WRJJRS@aol.com Received: from imo-da03.mx.aol.com (imo-da03.mx.aol.com [205.188.169.201]) by imo-d06.mx.aol.com (v107.10) with ESMTP id RELAYIN2-34a5e0ee9382; Wed, 15 Jul 2009 13:16:25 -0400 Received: from WRJJRS@aol.com by imo-da03.mx.aol.com (mail_out_v40_r1.5.) id q.c63.48a7a03c (37140) for ; Wed, 15 Jul 2009 13:16:24 -0400 (EDT) Received: from smtprly-mb02.mx.aol.com (smtprly-mb02.mx.aol.com [64.12.207.149]) by cia-ma03.mx.aol.com (v124.15) with ESMTP id MAILCIAMA032-5c694a5e0ee11b5; Wed, 15 Jul 2009 13:16:24 -0400 Received: from WEBMAIL-DY16 (webmail-dy16.sim.aol.com [205.188.108.141]) by smtprly-mb02.mx.aol.com (v124.15) with ESMTP id MAILSMTPRLYMB027-5c694a5e0ee11b5; Wed, 15 Jul 2009 13:16:17 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: Oly's report on accident Date: Wed, 15 Jul 2009 13:16:17 -0400 X-AOL-IP: 205.188.169.201 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: wrjjrs@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CBD387197516C3_11E0_583_WEBMAIL-DY16.sysops.aol.com" X-Mailer: AOL Webmail 43792-STANDARD Received: from 66.253.96.220 by WEBMAIL-DY16.sysops.aol.com (205.188.108.141) with HTTP (WebMailUI); Wed, 15 Jul 2009 13:16:17 -0400 Message-Id: <8CBD3871962042B-11E0-2AE@WEBMAIL-DY16.sysops.aol.com> X-Spam-Flag:NO ----------MB_8CBD387197516C3_11E0_583_WEBMAIL-DY16.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii" George, Then it was worth taking the time to type it up! Bill Jepson -----Original Message----- From: George Lendich To: Rotary motors in aircraft Sent: Tue, Jul 14, 2009 8:27 pm Subject: [FlyRotary] Re: Oly's report on accident Bill, I didn't know that! George ( down under) ----- Original Message ----- From: wrjjrs@aol.com To: Rotary motors in aircraft Sent: Tuesday, July 14, 2009 3:01 AM Subject: [FlyRotary] Re: Oly's report on accident Ok Ed, Let's do a quick carb-speak check. FLOAT level typically is checked with the carb upside down and the bowl removed. The number is the measured distance from the gasket surface to the highest point on the float unless depicted otherwise in the manual. Remember the FLOAT level is measured with the carb inverted, and the thing to remember is that the higher the FLOAT level the lower the FUEL level. The confusion with the reversed levels is the reason that all the motorcycle manufacturers went to FUEL level only in their specifications. The motorcycle guys gave you a tube which was a simple graduated cylinder, a hose, and a tap screw to put in the bottom of the float bowl. You were supposed to only measure the fuel level. In fact if you look at later model carburetors you will see that the flange that contains the float bowl is cut away in the center so you can see the gasket mating surface. The purpose of the cutaway was to allow you to see the gasket seal surface to measure the fuel level, which used the same reference surface. If you look in the service manual (Kawasaki at least) of a bike with carbs printed in the last 15 years you will see only a fuel level listed. Boy did that cause the mechanics to bitch when they first made the change! When speaking only of the fuel level the understanding is easy. Fuel level high, carb runs rich. Fuel level low, carb runs lean. Sorry for the long explaination for the very simple concept. Bill Jepson ----------MB_8CBD387197516C3_11E0_583_WEBMAIL-DY16.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/html; charset="us-ascii" George,
Then it was worth taking the time to type it up!
Bill Jepson


-----Original Message-----
From: George Lendich <lendich@aanet.com.au>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, Jul 14, 2009 8:27 pm
Subject: [FlyRotary] Re: Oly's report on accident

Bill,
I didn't know that!
George ( down under)
----- Original Message -----
Sent: Tuesday, July 14, 2009 3:01 AM
Subject: [FlyRotary] Re: Oly's report on accident

Ok Ed,
Let's do a quick carb-speak check. FLOAT level typically is checked with the carb upside down and the bowl removed. The number is the measured distance from the gasket surface to the highest point on the float unless depicted otherwise in the manual. Remember the FLOAT level is measured with the carb inverted, and the thing to remember is that the higher the FLOAT level the lower the FUEL level. The confusion with the reversed levels is the reason that all the motorcycle manufacturers went to FUEL level only in their specifications. The motorcycle guys gave you a tube which was a simple graduated cylinder, a hose, and a tap screw to put in the bottom of the float bowl. You were supposed to only measure the fuel level. In fact if you look at later model carburetors you will see that the flange that contains the float bowl is cut away in the center so you can see the gasket mating surface. The purpose of the cutaway was to allow you to see the gasket seal surface to measure the fuel level, which used the same reference surface. If you look in the service manual (Kawasaki at least) of a bike with carbs printed in the last 15 years you will see only a fuel level listed. Boy did that cause the mechanics to bitch when they first made the change! When speaking only of the fuel level the understanding is easy. Fuel level high, carb runs rich. Fuel level low, carb runs lean.
Sorry for the long explaination for the very simple concept.
Bill Jepson


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