SmartCarb For KTM 125
$649.00
Ready to Race? Get Equipped!
The all-new 36mm SC3 model SmartCarb replaces the stock Keihin PWK or Mikuni TMX in stock bore or big bore (144cc) 125cc KTM dirt bikes, offering superior 21st century carburetor performance, efficiency, and ease of use.
Every SmartCarb ships pre-adjusted specifically for your bike setup. 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.
Questions about compatibility, sizing, or fitment? Contact Us!
Products shipping internationally may be subject to import duties/taxes.
Description
What’s New!
The SC3 SmartCarb replaces the stock KTM 125 carburetor.
This isn’t your grandpa’s carburetor. The All-New SmartCarb SC3 brings carburetion firmly into the 21st century. It is a precision air/fuel metering instrument that provides better-than-EFI fuel atomization, precise mixture control, and automatic air density compensation in a single circuit, externally adjustable, jet-less fuel system.
SC3 Upgrades:
- Patented CloudForge™ Venturi Design | Optimized signal generation and fuel atomization
- Moisture Management | Improved throttle control in extreme humidity
- Larger Vent Scoop | Faster float bowl venting/fluid communication
- Blended Slide Cutaway | Cleaner off-idle throttle response
- O-ring Float Bowl Gasket | Improved sealing and sleeker look
- Doubled Fuel Rate | 2X fill passages for quicker float bowl fueling response
- “Tucked” Fuel Fitting | Improved fuel line routing
- Complete SC3 Design Overhaul | Better fitment with smaller form-factor
- Reduced Part Count | Cost savings passed to our customers (-$100)
- Lighter Weight | 12% reduction
SmartCarbs are proudly designed and manufactured in the USA!
Learn more about How It Works
Michael Caddell –
My 2019 150sx came with the 36mm SC2. After my first ride, it was obvious that the carb was too lean because the previous owner was a woods rider and I only ride moto. I called smartcarb up, they pulled up the record of the previous owner and we figured out that I needed a richer metering rod and an updated float kit in order to suit my motocross needs. After these updates and following the unofficial smartcarb tuning guide, which is very easy because you can do the tuning without any tools needed, my bike rips. Starts first kick without even having to touch the gas, idles strong, and pulls very linear all the way through each gear. 5 stars for the customer service at SmartCarb and for an awesome product!
Kevin F –
Got my SmartCarb running sweet!
Very impressive fueling with our temp not rising above 38 degrees yesterday. More responsive now, compared to a properly jetted Mikuni, and none of the ‘ding-‘ding off-throttle, just smooth response everywhere. I love how it rolls on before the power-valve and after. Not soft power before, stronger now, then good drive once on the pipe.
Feels better than a 125 should…
Can’t wait to see how it operates at 65 degrees, 85 degrees, and everything else next season.
Thanks guys!
Kevin