difference between an s an s carb and a cv carb, and what does that have to do with which aftermarket air cleaner you purchase.....sorry guys, im learning here...

 

CV = Constant Vacuum

 

The Keihn (sp) CV carb came stock on Haleys for a long time, from around 1988-89 until the last carbed bikes were offered, in 2006. They work very well on stock and mildly modified Bikes. S&S is an aftermarket company that sells after market carbs. In my opinion the S&S carb offered improved performance in the 70's and early 80's over the stock carb on even stock bikes. On late model bikes it's hard to beat the CV. There are a lot of free flow air cleaner options out there for both. The Screamin' Eagle is hard to beat on the stock CV, and the S&S teardrop set up is great on their carb.

 

lots of good carb info here
http://www.harley-performance.com/ha...ance-blog.html

http://www.harley-performance.com/harley-tech-tips.html

 

Cv carbs dont have an accelerator pump for one, but aftermarket's do. Aftermartket has alot more tuning that can be done vs. a stk carb. I put a s&s super e on my stk 88", (except pipes and air cleaner. Ive had no problems with my s&s except for dirty fuel in the bowl but thats an easy fix and that was my fault dame aviation fuel lol.

 

JP4 runs a bit hot for that motor! LOL

 

Yea but it likes it so much. I dont fill my tank with it just put 2 gallons, then fill up with 93 octane. Just has alot of additivies in it.

 

my cv i had on the sportster has a pump

 

so does mine on my std.

 

missing the question, "what does that have to do with which aftermarket air cleaner you purchase". i think it has to do with the size of the carb opening as the harley CV is 45mm and the s&s is 52 or 58.

http://www.sscycle.com/modules/catalog/