Lambretta PHBH 28mm carburettor kit supplied with YSN aftermarket carburettor.

Manufactured to PHBH specification and compatible with Dellorto jets and components. This is an aftermarket product and not a genuine Dellorto carburettor.

The 28mm PHBH is typically suited to 200cc and larger capacity Lambretta engines, particularly tuned or performance builds requiring increased airflow and fuel delivery.

Each kit is jetted based on your engine configuration. Setup takes into account cylinder size, porting level, exhaust system and intended riding style.

Jetting considerations may include:
• Atomiser matched to performance level  
• Main jet range for sustained high-load running  
• Needle and slide combination for mid-range control  
• Idle circuit setup for clean response  

This ensures a reliable starting point for further dyno verification or road fine tuning.

Readspeed are experienced Lambretta tuning specialists with in-house dyno facilities for precise carb setup and optimisation.

Kit includes:
• YSN PHBH 28mm carburettor  
• Manifold  
• Gaskets and rubber fittings  
• Extended throttle cable  
• Jet and atomiser pack matched to application  

Important:
Full engine specification must be supplied when ordering to ensure appropriate jetting.