KEIHIN 99101-357 MAIN JET 185
“Keihin style“357“Hex” Series Main Jet
mfg by Factory Pro.
Uses the same number size scale as original Keihin jets. 5 × .8 thread
Commonly called “Keihin Hex jets”
Used in most Keihin FCR’s, Smoothbores and some dirt bikes.
