For those of you looking to get the most out of your 70cc cylinders.
They don't get much better that this, with a screw top cap for easy access to the needle and a nut on the bottom for easy jet changes its all you can ask for in a carb.
This carb is one of the top choices for the 02-11 Yamaha Zuma.
This carburetor usually comes from the factory supplied with a 50 pilot jet,92 main jet and a 262AU atomizer.
Polini main jet kit is sizes 90-99