Mailing List flyrotary@lancaironline.net Message #38564
From: <Lehanover@aol.com>
Subject: Re: [FlyRotary] Re: Carbs
Date: Fri, 20 Jul 2007 08:07:27 EDT
To: <flyrotary@lancaironline.net>
In a message dated 7/20/2007 3:54:44 A.M. Eastern Daylight Time, lendich@optusnet.com.au writes:
Bill /Lynn/ David.
I had a look at the Revmaster Revflow Injector carb, flat slide throttle- anything wrong with this unit?
George ( down under)
Some of the pictures on the Revmaster site won't open for me, but it looks as good as anything. Cable slide and a cable cutoff for fuel (and maybe mixture control) Perhaps a look at one of the KR builders pages will turn up some users. 
 
I always likes the old SU carbs on British cars. They have no accelerator pumps, but sudden full throttle does not lift the damper, and they will come off idle very well. Pulling on the choke cable lowered the main jet to a thinner place on the needle and might work for mixture control of sorts.
 
I have never had one in my hand, but the Bing web page shows both cable operated slides and diaphragm
operated slides. With no floats it needs a cutoff system to keep fuel from running out when parked. That might also allow for mixture control in use. The diaphragm version might be more responsive during throttle setting changes, similar to the Strombergs.
 
The lack of a flat bridge to form the choke, is replaced by the slide having a curved shape to match the side of the body on the top. The slide when retracted fills in the missing area of the choke area, and a choke is formed by turbulence from the exposed  slide channel.
 
So long as whatever you choose has some sort of mixture control, then easy mounting and price would be the determining factors. Big cable operated motorcycle carbs have worked for billions of miles of rough service. Good advertising?
 
Lynn E. Hanover




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