P2R MAIN JET CARB 4T GY6-139QMB 4mm P2R No.75-78-80-82-85-88-90-92-95-98 (BOX OF 10) JetRef : P2R05489A / 25885

Main Jet GICLEUR PRINCIPAL CARBU 4T GY6-139QMB 4mm P2R No.75-78-80-82-85-88-90-92-95-98 (PACK OF 10) by P2R

This main jet is designed for 4T carburettors of the GY6-139QMB type and is available in various sizes. It allows for the replacement of worn jets or the adjustment of fuel mixture by changing the jet size to achieve the correct engine tuning.

Design and Materials

• Diameter of 4 mm ensuring dimensional compatibility with jet bodies designed for this diameter for a suitable replacement
• Available sizes No.75-78-80-82-85-88-90-92-95-98 allowing you to select the appropriate size for fuel mixture adjustment

Practicality and Features

• Sold in a pack of 10 pieces
• This product version is FOR 4T GY6/139QMB to be used on this type of carburettor for proper adjustment

Usage and Performance

• Designed for fuel mixture, it replaces the main jet to restore expected engine performance
• Changing the jet size allows you to adjust the richness of the mixture during tuning or adaptation

Compatible with a selection of models including:

• SYM ORBIT 50 cm3
• SCOOT CHINOIS GY6 50 cm3
• PEUGEOT V-CLIC 50 cm3