Carb advice needed
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Cruiser
Joined: Nov 2014
Posts: 205
Likes: 8
From: South Carolina
Carb advice needed
My brother has a 2003 Road King with a few mods done to it. Don't know them off hand. He is asking what carb would be a better choice, a 42mm Mikuni or the S&S Super E.? Any opinions or experiences with either will be passed along to him. Thanks in advance.
Cruiser
Joined: Jan 2016
Posts: 181
Likes: 37
From: Broken Arrow, OK
I have the HSR42 on my 95 Electra Glide. It's a very good carb, but not the easiest to dial in the right jets, etc. Requires some trial and error if you're tuning it yourself. There is some good documentation and I've heard Mikuni support is very good, although not a lot of contact info at their websites. There are phone numbers floating around this and other forums, but I've never contacted them. No experience with the S&S.
Stellar HDF Member
Joined: Aug 2007
Posts: 2,052
Likes: 341
From: Virginia Beach
I had a s&s super e my 1989 FLHS easy to dial in and nothing like super e really. The newer S&S carburetors have a Third Circuit, An air bleed that is adjustable that makes it an even better carburetor.
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
neither of his choices will self compensate for changes in elevation...tune for sea level and go to 4000' and you have a foul-mannered slug.
the stock keihin CV carb does self-compensate for changes in elevation and is easily tuned and modded...and cheap!
go to nightrider.com
biketech
cv carb
1 section on modding, 1 on tuning
my Pal with the HSR45 and $20,000 110HP twin cam tuned for 1400', couldn't stay close to my stage 1 ( tuned) 80" evo at 7000'
Mike
the stock keihin CV carb does self-compensate for changes in elevation and is easily tuned and modded...and cheap!
go to nightrider.com
biketech
cv carb
1 section on modding, 1 on tuning
my Pal with the HSR45 and $20,000 110HP twin cam tuned for 1400', couldn't stay close to my stage 1 ( tuned) 80" evo at 7000'
Mike
Road Warrior
Joined: Aug 2011
Posts: 1,510
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From: Connecticut
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Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
Likes: 11
From: Northern Ontario
I have a 52mm Cv on both my 99 flt and the 2002 dyna as well my old Evo had a 42 cv, set them and go.
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Club Member
Joined: Jun 2007
Posts: 45,429
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From: Bedford UK
As we've seen, all the popular brands have their champions! It would be much more helpful for your brother to come on here himself, so we can learn more about his bike and get more info. As it is there are at least three choices and a stock c/v carb is capable of delivering around 100HP, so he shouldn't be having any problems with using one. If he is, then he will probably have problems with whatever he puts on it!