16-20 Yamaha Zuma 125 Fuel Injector (BWS'R) Drivetrain or rebuilds after high-rev usage

or rebuilds after high-rev usage or wear

Ditch the plastic and give your neck the attention it deserves

5mm longer stroke

race porting and polish and crankshaft balancing

16-20 Yamaha Zuma 125 Fuel Injector (BWS'R) Drivetrain or rebuilds after high-rev usage2016 2020 Yamaha Zuma 125 Replacement and Upgraded Fuel Injector Yamaha Zuma 125 Replacement and Upgraded Fuel Injector is available in several sizes. It's important to note that these injectors are determined by flow rate, not engine displacement size. We offer various options to suit different engine builds, but for most 164cc builds, we recommend using the 140cc min injector. Proper matching of the injector flow rate with the air intake is crucial;