26mm SC2 SmartCarb


26mm SC2 SmartCarbs are designed to replace conventional spigot mount top-pull carburetors in 2-stroke applications and will fit most intake manifolds and conventional air boxes that use Keihin PWK 28mm or Mikuni VM or TMX 24mm and 26mm carburetors. See dimensional comparisons in the photo gallery below.

NOTE: Optional 2 Inch Ring Adapter upsizes the airboot or intake spigot of 26mm SC2 SmartCarbs from 1.75 inches to 2 inches. Some applications require the larger diameter spigot, including the YZ65 or generally any application using a 28mm Keihin PWK carburetor stock. Select option below.

Every SmartCarb ships pre-tuned with baseline settings specific to the application for which it is ordered. Questions about sizing, fitment, or compatibility? Contact Us!

New orders are currently shipping within 2 weeks from the order date. For our international customers, please note that any applicable import duties or taxes are the purchaser’s responsibility.

Performance Guarantees

  • Ride Faster | 10% more power
  • Ride Farther | 25-30% greater fuel economy
  • Crisp, linear throttle response bottom to top!

Tuning/Ease of Use

  • Make adjustments by hand, in seconds (no tools required)
  • Complete air density compensation (consistent air/fuel ratios at any elevation or temperature)
  • Accepts all modern stock throttle cables
  • Single circuit design (NO Jets!)
  • Set it and forget it!

Other Features

  • Zero fuel spillage (internally vented, sealed system)
  • Reduced emissions (30-50% reduction)
  • Premium billet construction
  • Designed and manufactured in the USA

NOTE: 2 Inch Ring Adapter required for the following applications:

  • Yamaha YZ65
  • Generally any application using a 28mm Keihin PWK carburetor stock
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SKU: 26BAF Category:


The New SmartCarb SC2

We’ve spent years refining every facet and feature of the SC2, making it the biggest leap forward for our flagship model since 2012. This new generation of SmartCarb provides the same unmatched performance gains enjoyed by thousands of customers in over 80 countries worldwide – now in the most accessible, plug-and-play format we’ve ever made.

  • Shorter end-to-end (improved fitment over earlier models)
  • Revised throttle cable retention (works with nearly all stock throttle cables)
  • Float bowl drain screw now accessible from the side
  • Improved fuel line routing

SmartCarbs are designed and manufactured in the USA to provide extremely fine fuel atomization, precise air/fuel mixture control, and ambient air density compensation. These innovative features are delivered in a single-circuit, flat slide, variable venturi, mechanical fuel system.

Hewn from beautiful billet aluminum, the SC2 has been crafted to the tightest tolerances in order to deliver the excellent performance gains that our customers have come to expect from patented SmartCarb technology.


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