PEZ25 Carburetor

PEZ Series · Flange Carburetor NIBBI PEZ25 Flange Carburetor A direct-fit performance upgrade for PZ26 and PZ27 carburetors. The PEZ25 combines a 25mm bore, responsive throttle delivery, efficient fuel metering, and practical tuning flexibility for CG 125–150cc motorcycles, ATVs, dirt bikes, and similar applications. 01 PZ26 / PZ27 Replacement Designed with matching mounting dimensions for PZ26 and PZ27 applications, allowing a straightforward replacement when the original carburetor dimensions are confirmed. 02 25mm Bore The 25mm internal bore is engineered to provide responsive throttle behavior and balanced air-fuel delivery for compatible 125cc–150cc applications. 03 Efficient Fuel Delivery Optimized fuel metering helps deliver smooth engine operation while supporting efficient fuel consumption during everyday riding and off-road use. 04 Responsive Throttle The PEZ25 is designed for prompt throttle response, helping the engine react quickly and deliver smoother acceleration. 05 Aluminum Construction Manufactured from aluminum alloy for a lightweight yet durable construction suited to demanding motorcycle and ATV environments. 06 Adjustable & Tunable Includes a pre-installed main and pilot jet setup plus additional jets, giving riders more flexibility to fine-tune fuel delivery. Built as a PZ26 / PZ27 Replacement Compared with traditional PZ26 and PZ27 carburetors, the NIBBI PEZ25 uses matching mounting dimensions for compatible applications. Its 25mm bore provides a balanced combination of throttle response, drivability, and fuel efficiency. PZ26 / PZ27 Replacement Application Technical Data PEZ25 Specifications Carburetor Type PEZ25 Flange Carburetor Bore Size 25 mm Engine Side Flange Mount Flange Hole Diameter 48 mm Engine Interface 29 mm Air Filter Side OD 40 mm Carburetor Body Size 183 × 83 mm Material Aluminum Alloy Main Jet Installed #112 Pilot Jet Installed #38 Tuning Support Factory Jetting & Included Jets The PEZ25 comes ready to install with a #112 main jet and #38 pilot jet. Additional jets are included to give riders more flexibility when adjusting fuel delivery for different engines, air filters, exhaust systems, riding conditions, and elevations. Pre-Installed Main Jet #112 Pilot Jet #38 Additional Jets Included #108 #110 #115 #35 Easy Adjustment Carburetor Controls Idle Speed Screw Turn clockwise to increase idle speed. Turn counterclockwise to decrease idle speed. Air-Fuel Mixture Screw Turn clockwise to reduce the amount of air. Turn counterclockwise to increase the amount of air. Functional Design Built for Practical Riding Aluminum Alloy Body provides a durable and lightweight construction for motorcycle and ATV applications. Choke Starter System restricts incoming airflow during starting to help provide a richer mixture for cold starts. Interface Seal helps prevent oil leakage and limits the entry of mud, sand, and debris around the interface. 40mm Air Filter Connection provides a clear reference when selecting a compatible air filter. 25mm Internal Bore provides balanced airflow and fuel delivery for compatible engines. Adjustable Fuel Metering allows additional tuning flexibility with the included jet set. Important Fitment Information The PEZ25 is designed as a replacement for compatible PZ26/PZ27 carburetors and is suitable for many CG125–150cc motorcycle and ATV applications. Before ordering, please verify the original carburetor's mounting dimensions, flange hole spacing, engine-side interface, air-filter connection diameter, and available installation space. Matching the dimensions is essential to ensure proper installation.