Dynojet 4223 - Jet Kit for 1987-1992 Yamaha YSR50 Catch_FPQ1 300 & Challenger 5

300 & Challenger 5

Part number: FS7A-12A650-BUE

Part number: 6U7A-12A650-KEA

Part number: 9U7A-12A650-ERB

Catch code: PLZ2

Dynojet 4223 - Jet Kit for 1987-1992 Yamaha YSR50 Catch_FPQ1 300 & Challenger 5The Dynojet Jet Kit for 1987 1992 Yamaha YSR50 is an application specific carburetor jet kit for riders working with a carbureted setup. It is a practical option when the bike needs fueling changes to match intake, exhaust, altitude, or general drivability needs. Why It Matters Supports carburetor fuel metering changes on compatible applications Useful when intake or exhaust changes require a better matched setup Vehicle specific selection keeps the