36mm SC2 SmartCarb
$674.10 – $854.10
Build Your Own 36mm SmartCarb
This 36mm SmartCarb is designed to replace conventional, spigot mounted carburetors in 125-300cc 2-stroke applications, offering unbeatable performance and incredible ease of use. It is a direct fit in applications originally equipped with Keihin PE, PJ, PWK and Mikuni VM and TM series carburetors of similar size. In general we recommend replacing size-for-size.
Choose this product only if you cannot find your application in the Selector Tool drop-downs on the Shop page but are confident in your ability and understanding to adapt it to your particular application or if directed to by a SmartCarb Fuel Systems technician or representative. SmartCarb Fuel Systems makes no guarantees regarding the suitability of this product for use in unknown applications or in those for which it was not specifically designed for. In general this product is not recommended for use in 4-stroke applications larger than 450cc in displacement. Please review the fitment requirements detailed in the Fitment Information tab below.
The +2 Metering Rods option is recommended for unique applications and adds a one step richer metering rod and a one step leaner metering rod to your order relative to the metering rod selected and installed by the technician prior to shipping based on the application information provided. A technician may reach out for further information prior to shipping.
Every SmartCarb ships pre-adjusted specifically for the application for which it is ordered. Please provide information in the forms below about any engine/exhaust modifications, how you ride (riding style), and what fuel selection and oil premix ratio you use (if applicable). Specify which side you prefer the fuel fitting to be. Standard, default location shown.
Questions about compatibility, sizing, or fitment? Contact Us!
Products shipping internationally may be subject to import duties/taxes.
Description
The 36mm SmartCarb carburetor is a precision metering instrument that provides extremely fine fuel atomization, precise mixture control, and air density compensation in a single circuit, jet-less fuel system.
- CNC billet aluminum construction
- Patented single fuel circuit design
- Extremely fine fuel atomization
- Optimal air/fuel ratio control
- Designed & manufactured in the USA
Learn more about How It Works
Steve Schliesman –
Hey guys, thank you for the information, suggestions, and prompt attention getting me a pair of 36mm SmartCarbs for my 1981 XS650. I finally got everything together and the SmartCarbs, combined with the final piece of the puzzle (a Vape ignition/charging system), worked so well that the bike is better than brand new. It starts on one kick, and it pulls like it never has. The response gives a nice kick in the ass in every gear, pulling hard in the low revs and then snapping right up to the shift point (3-5k RPM). I may actually have to go with longer gears, as I’m having to shift too quickly.
Thanks for designing and building a great product.
Corey –
Best carb ever.
Kris Lisowski –
I wanted to let you know the carb is working great! I also wanted to let you know I passed your company’s info on to a few people from the Kayo KT250 site after my review to them, as they were very interested in your product! You guys make a quality product and I don’t mind telling anyone who asks😉. The low end grunt this bike has now is crazy! It’s getting more and more rare to buy something that 100% lives up the company claims! I’m pulling hills in second and third gear that before was in first! Anyway, thanks again for your help, and your great product! I will recommend this carb to anyone that rides multiple elevations and at differing temperatures.
Darrell Spilsbury –
I do a lot of vintage motocross and I have a 72 CZ 125 that has been modified and built by Harry Klem. With a Mikuni it ran ok at best, was impossible to start kicking it, but would cease in off throttle situations going down hill. 1/2 size bigger pilot jet and it would bog and load up. I bought a lectron and tried three different needles and just about every setting with them and got it to stop loading up but throttle response at low RPM was poor at best. I decided to go with a Smart Carb and gave them my info, bolted it on, it started first kick. I was beyond words and thought it was luck. After a couple small adjustment it ran like a reed valve motor. ZERO bog, quick response off idle, it would do throttle wheelies without pulling on the bars for the first time and was a beast on the track. Simply amazing! Given the option, I don’t see why anyone would buy any other carburetor for a bike!!! Why would you want something that you have to take the slide out to make adjustments? Why would you want another carb that cant possibly give off idle throttle response like the Smart Carb? I would give it 10 stars if I could. It worked so much better than I thought was possible, way beyond expectations!!