PRO SERIES 4-Stroke Carburetor Kit (38–40mm) – No Jetting, All Power

Take full control of your 4-stroke power with the PRO SERIES Carburetor Kit. Engineered for serious riders, this billet-built carb includes our exclusive Xcelerator metering rod, Torque Jet, and Power Jet systems—delivering instant throttle response and a wide, torque-rich powerband. No jetting. No guesswork. Just bolt on and ride.

📦 What’s Included:

• PRO SERIES 38–40mm 4-Stroke Carburetor

• Xcelerator Metering Rod (pre-installed)

• Torque Jet + Power Jet fuel systems

• CNC-billet throttle assembly + throttle cable

• Internal fuel circuits – no external hoses

• Color options: Black (standard), Blue, Orange, Red (+$50)

🔧 Fitment:

Compatible with most 4-stroke bikes using 36–41mm Keihin or Mikuni carbs. Confirmed fitments include:

• Honda: XR650L, CRF250R, CRF450X, CRF450R

• Yamaha: YZ250F, YZ450F, WR250F, WR450F

• Suzuki: DR650, DRZ400, RMZ250, RMZ450, LS650/S40

• Kawasaki: KLR650, KX250F, KX450F

• KTM: 250F–530, 400, 520, 525

• ATK, SSR: 450–620 models

🛠 Replaces: Keihin FCR-MX 37/39/41, Mikuni BSR36, BST40, TM36–TM38, and more.

🛡 Warranty Info:

• Backed by manufacturer limited warranty

• Lifetime no-jetting guarantee on metering rod tech

• Built in the USA with race-tested components