What about Lectron carbs?
    >
    > Joe Berki
    > Limo EZ
    >
    > Never heard of them :) Do you have something on them. What is the
   bore size?
    >
    > Paul Lamar ...No rotor no motor.


   Paul,
   Here is the url the biggest one is 50mm.  The application is bikes and
   snowmobiles.  One should be able to find a snowmobile salvage shop
   online.

   http://www.lectronfuelsystems.com/

   Joe Berki
   Limo EZ

   http://packardracing.com/start.php?page=products.php?id=22
   http://www.hpresearch.net/

   "They range in size from 32 mm to 50 mm in both alcohol and gas
   versions.
   Most alcohol carbs, except the 46, 48, and 50mm sell for $305.00.
   The gas carbs sell for $285.00, again except the larger sizes.
   Unless specified otherwise, our gas carburetor also includes an
   externally adjusted fuel enrichment circuit."

   OK what is the price for the gas 50 mm? I see a 46 mm for $420 each.

   Maybe they can just be bored out. I can do that.

   Paul Lamar ...No rotor no motor.

   The Rotary Engine NewsLetter. Powered by Linux.
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   Copyright 1998-2006 All world wide rights reserved.

Paul,
The LECTRON carb is NOT suitable for boring out. When we originally
discussed the Low pressure FI/ slide throttle you may recall I showed
you the RAMP idea for mixture control. I credited LECTRON as a
manufacturer of carbs using a tapered needle ramp to control mixture.
These are the guys. Since the needle is configured to a given size
venturi and engine type (2 or 4 cycle) you would throw off the mixture
by boring the carb. The ramp taper is different on 2 and 4 cycle engines
since 2 cycles are usually richened much faster past 1/2 throttle.
Lectron carbs work well. I helped a tune a TZ-750 yamaha using 4 of
these carbs and it made major power. Many all nighters on the chassis
dyno to get it all to work though. If used the vacuum in the float bowl
system would work for leaning manually. Lectron was the first to my
knowledge to SUCCESSFULLY produce a complete single needle system carb
that actually worked. The critical thing to remember is that it took a
long time to get it working right. I think at the time they even filed
for a patent on the grinding system used to taper the needles. Very
small changes in taper and location of that taper must be controlled to
make the system work. It looks simple, trust me it isn't!
Bill Jepson

I am beyond carbs Bill. Back to low pressure fuel injection.
Besides they are just as expensive as Mikuni or Keihin.
BTW no need to bore them out. They have a 50 mm version.

Paul Lamar

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Copyright 1998-2006 All world wide rights reserved.