Main jet for Keihin carburetors.
Genuine Keihin, high quality part. Keihin part # 99101-357.
This fits:
- Keihin FCR racing carburetors
- Keihin FCR single carburetors
- Keihin FCR MX carburetors
- Keihin CR special carburetors
- Keihin PE / PJ / PWK / PWM carburetors
- etc.
Complete as pictured.
