Description
Upgrade your Kawasaki 650cc with HSI 44mm SBN Carb Setup – complete bolt-on replacement for problematic Keihin carbs. HSI-built and jetted to your specs with choice of PJS manifold or adapter plate. Includes ProK filter and all necessary hardware.
Keihin to SBN Conversion
- Intake Options: PJS manifold (best flow) or adapter plate (budget)
- HSI Jetting: Custom tuned to elevation and exhaust
- Complete Kit: Billet drum, bracket, ProK filter, all gaskets, primer ready
- Port Matching: Required with adapter plate
Model Guide
- 1986-1990 (28mm Keihin): PJS manifold required
- 1991+ (38mm Keihin): PJS or adapter plate
Lead Time
Summer 2025: 10-14 business days.
Add primer kit if needed. Provide full specs at checkout.
Part Numbers: Multiple – see description
