S&S Carb Questions??
Seasoned HDF Member
Joined: Jun 2015
Posts: 10,297
Likes: 7,775
From: West Central FL
Cables should be the same. Cable sleeves might be different but they come with the Super E kit. You may also need to change the manifold on the Evo.
Are you sure you have the proper jets in there? I ran a Super B on my Shovelhead for about 30 years and didn't have trouble with spitting or slow response. It might have sneezed now and then but I loved the "B". Have you given any thought to keeping the "B" and getting a SuperBowl for it? It's a new bowl with an accelerator pump in it. Probably be about $350 cheaper than a new Super E kit.
https://www.google.com/search?q=Su8p...HUlKAR8QsAQIPg
http://www.jpcycles.com/product/403-927
Seasoned HDF Member
Joined: Sep 2012
Posts: 6,570
Likes: 590
From: almost there
All my S&S E are easy to set up but some people have problems scratching their butt.
Mine have been problem free and very quick to respond to throttle. The biggest problem I have is the back wheel leaving rubber on the pavement, so go figure. S&S made that carb to preform. I get about 45+ mpg.
Mine have been problem free and very quick to respond to throttle. The biggest problem I have is the back wheel leaving rubber on the pavement, so go figure. S&S made that carb to preform. I get about 45+ mpg.
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Intermediate
Joined: Jun 2016
Posts: 44
Likes: 11
From: Durham, NC
I have a .74 jet in it now. Could it be too rich? It seems to be better after it is good and hot but until then it may even cough while cruising at low speeds. And that accelerator bowl requires drilling the main body which sounds like it will require a professional to install, right?
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,201
Likes: 3,089
From: NW AR
Not too rich, too lean, probably with the low speed jet, if there is one. Sorry, but I last messed with a Super B over 30 years ago.
Dunno what all is involved in the accelerator bowl kit, but I have found very few jobs that "require a professional." It all depends on your skillz, willingness to learn and tool set
Dunno what all is involved in the accelerator bowl kit, but I have found very few jobs that "require a professional." It all depends on your skillz, willingness to learn and tool set
Tourer
Joined: Mar 2014
Posts: 304
Likes: 24
From: Black Hills SD
The Superbowl is kind of a Band-Aid for an outdated unit. The B has too small a venturi, poor circuitry, porous castings, throttle shaft wear, etc.
Once I get a Super G tuned correctly, ( I don't use the E as the way I set them up, the G works on anything but an 883), the accel pump is just barely turned on. In fact, I can shut it off completely and they run quite happily. The pump masks one of the inadequacies of the E or G., that is there are not enough circuits (jets) to cover the entire rpm range without over rich conditions as the fuel circuits overlap. But we still get that lean misfire right off idle (pop), so we throw a bunch of pump at it, that richens it up and masks the lean condition, at the expense of fuel economy.
If you add a third fuel circuit (thunderjet), an adjustable air bleed, and modify the bowl vent you can tune the circuits much more accurately, thus no need for a lot of pump, you go way down on the intermediate jet and down a couple sizes on the main and the fuel economy goes way up. Also allows much better tuning if you have an iffy exhaust setup.
Once I get a Super G tuned correctly, ( I don't use the E as the way I set them up, the G works on anything but an 883), the accel pump is just barely turned on. In fact, I can shut it off completely and they run quite happily. The pump masks one of the inadequacies of the E or G., that is there are not enough circuits (jets) to cover the entire rpm range without over rich conditions as the fuel circuits overlap. But we still get that lean misfire right off idle (pop), so we throw a bunch of pump at it, that richens it up and masks the lean condition, at the expense of fuel economy.
If you add a third fuel circuit (thunderjet), an adjustable air bleed, and modify the bowl vent you can tune the circuits much more accurately, thus no need for a lot of pump, you go way down on the intermediate jet and down a couple sizes on the main and the fuel economy goes way up. Also allows much better tuning if you have an iffy exhaust setup.
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