
This part being universal, it may require adaptations
KEIHIN Main Jet 170 — Manufacturer part number: 99101-357-1700
This KEIHIN main jet size 170 is designed for riders who adjust the carburation of their machine. Designed by KEIHIN, it replaces or modifies the main orifice of the carburetor to adjust the fuel flow beyond the transition range. Ideal for tuning operations during changes in altitude, exhaust, or intake, it is one of the essential maintenance parts to achieve consistent carburation.
A simple and robust replacement product, it allows for precise adjustment of the richness in addition to needle and idle jet settings. For optimal tuning, check the appearance of the spark plugs and conduct gradual road tests.