When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I'm in the planning stage for my 05 XL1200C (which basically means I wanna do a lot of stuff to it but don't have the money). So while I'm dreaming, I'm looking at changing the stock carb out to a Mikuni or an S&S carb. I want to increase performance and horsepower. So, my question is two-fold. First, will changing out the stock carb make much difference and if so, what are the pros and cons to the two carbs and which on is better in your opinions. Thanks in advance.
I got a Mikuni from gopartsdirect.com, I figure if they make the SE one anyway, why not get it, and I got it from somebody else b/c the money I saved paid to have it installed. Throttle response is way better than the stock, I recommend it to everyone. Although I dont have a Sportster, I am sure the rules still apply, definitely worth the money. Just my .02
You won't gain much more power or torque if any from a Mikuni but a lot better throttle response. I have a 42mm Mikuni on my softtail standard and before doing so asked around a lot about differant carbs from guys who have tried them all......Mikuni was the answer.
A stock HD Carb. will flow all the air a near stock bike needs. Unless you are going to do a lot of high end engine mods, you are not going to gain much power from a different carb. You will find that the Mikuni will give you smoother power input with no dead spots. As far as S&S or Mikuni, my choice would be Mikuni.
Thanks for the replies so far. Is anyone out there running an S&S?
I run an S&S on my Fatboy, only time the carbs efficient is at WFO, IMHO if I had it to do over agian woulda went with a Mikuni. Didnt because at the time the slide rattled in the Mikuni here theyve since fixed that.
The Mikuni has 5 tuning circuits, where the S&S has 3. You can add a circuit to the S&S, but adds to the price of the carb. A lot of the performance shops will turn to the Mikuni to tune the motor better with the extra circuits. If your motor is stock, I would look into a hop-up kit for the stock CV carb. I have done several CV carbs on EVO motors and makes a big difference. The CV carb is a good carb.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.