B-Type Injectors 80cc-140cc

CRF110/125 injectors

Yuminashi B-Type injectors

Depending on the build of your bike you will need upgrade your injector to supply the correct fuel flow. The flow rates of the injectors are measured in cc/min. It has no correlation to the displacement of the bike. Below we have provided some insight to help you choose the correct size injector. 

• 80cc injector/stock injector for these bikes (CRF110F, CRF125F, Grom, Monkey, Cub, CT125)
• 90cc injector (We use this injector for our stock limited builds with high comp. pistons with 110+ octane race gas.
• 120cc injector ( This injector is used for high comp stock limited builds running E85 and for 132 big bore builds running race gas)
• 140cc (8 hole) injector used for stroked 132 big bore builds and 147 big bore builds