cv carb on shovelhead?
pete
any one out there ever put a cv carb on late model shovel head.
how did you like it? how did it run?
what adapter did you use?
Jeff
I have been thinking about doing the same thing. Can't tell you how it works yet but here is the route I will be going (unless somebody knows something else).
Parts list from 1999 CSI catalog. 040324 - Billet flange to spigot carb adapter, 040269 - Carb support, 040269 - shovelhead to CV carb support adapter, 268072 - Fuel inlet fitting, stock spigot carb seal. I already have a -92 40mm CV carb.
I am getting a fuel inlet fitting because the angle of the orig. fitting appears to be wrong for my bike. It would route the gas line above the manifold.
The guy I bought the CV from has done this before and the shovelhead got much better gas mileage. Here is what he recommended:
"Get a Yost Kit for the tube and needle. Drill out the slide per instructions. START with as least a 45 slow jet and a 175 or 180 for the main jet. A shovelhead will run lean with the evo jets."
One good source I found for modifying a CV is: http://www.nightrider.com/biketech/hdcvcarb.htm
Any input or anything I missed?
Jeff
ABATE, MRF, 81 FLHS
LAM
Jeff wrote in message <38D4E670...@indy.spamout.net>...
John Haas
>hi
>any one out there ever put a cv carb on late model shovel head.
>how did you like it? how did it run?
>what adapter did you use?
>
I ran one for a few years on my '72 74". I'm now in the process of
switching to a Bendix, but not becuase I was unhappy with the
performance of the CV. I got in the high 30's MPG with it.
I put a Bendix on my sportster and really like it cuz its real easy to
tweak and no jets to worry about with the adjustable main. I'm hoping
to like the Bendix as much on my shovel - its not a high performance
motor, so I figger the Bendix should work fine with it.
Part of the reason is aesthetics. With the CV, the adapter pushes it
out a little farther, and then its got that big 8" air cleaner. I
just like the look of the Bendix on the bike better with its recessed
air cleaner backplate, and smaller 7" cover. I'm hoping the
performance is up to snuff - if not I'll be going back to the CV.
One nice thing about the CV, if you're concerned with gas mileage, it
has a fitting for a VOES vacuum hose. If you're running an electronic
ignition that supports a VOES, that might buy you a few mpg's. If
you're not going to use it, make sure you cap it.
I don't remember which manifold adapter I used - if you have trouble
finding one, I can dig and find the package it came in and pass on the
info - I know I have it somewhere.
One consideration is some sort of support bracket for it. I made on
that bolted to the 5/16" hole in the bototm of the front rocker box.
The other end bolts to a hole I drilled in the back of the air cleaner
back plate. Seemed to be plenty solid. I think I started with one
designed for the S&S and then modified that slightly.
As for jets, I *think* I have a 45 and 180 in it, but I'd have to take
'em out an look to be sure.
Let me know if you have any more questions,
-John
'72flh, '66xlch
HogDoctor
> hi
> any one out there ever put a cv carb on late model shovel head.
> how did you like it? how did it run?
> what adapter did you use?
Use the Mikuni adapter for the 42mm flatslide to the stock keihin
manifold.
It's a bit long though, the carb will stick out a bit.
Otherwise, have a flange heliarced to the CV carb spigot, and bolt
it on.
HogDr
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