Description
Koso is a quality brand that has been manufacturing high-quality products for over 30 years. Their Koso KSR PWK Racing Carburetor features several design points to increase performance and throttle response. The method of construction consists of a semi-flat D shaped slide, this allows higher fuel flow easier. With the proper AFR(air/fuel ratio) you will have better throttle response. The build of this carburetor is also made to reduce the amount of incomplete combustion, increasing motor efficiency. It is easy to manipulate and adjust in case you want to fine-tune your machine! Perfect replacement for OEM carb on the Honda Ruckus or any 4 stroke motor! Comes in 3 different sizes 28mm-32mm
| Carburetor | 28mm | 30mm | 32mm |
| Air adjust screw | 1 1/2 | 1 1/2 | 1 1/2 |
| Slow jet | 40 | 38 | 42 |
| Jet needle setting | 3 | 3 | 3 |
| Jet needle | J | J | J |
| Main jet | 100 | 122 | 122 |
| Power jet | 30 | 30 | 30 |