OS Engines

Rotation Sensor: GT55

Needle Valve Holder 61ER

Needle Valve Assembly #12FB: 12XZ Speed

Metering Needle 21M

Cover Plate: 12TG

Screw Set (8): 30VG

Slide Valve #21JS

Cover Plate: 105HZ

Outer Head: 12XZ Speed Spec 3

Inner Cylinder Head: 12XZ

Collector Exhaust Pipe: IL-300 Dia Star

Needle Holder: 65LA

Valve Spring Seat: 56 FS

Valve Assembly Intake: FS-120 Surpass

Cam Cover: FS-20 Supass

Connecting Rod: BGX-3500

O.S. Cover Plate Speed: T1203

O.S. Crankcase Speed: T1203

Cylinder Rebuild Kit: 21XR-B

Inner Head: Speed 21XZ-GT

O.S. Carburetor 12F5(B) Speed: T1203

Heat Sink Head: 50SX-H

Cover Plate: 50SX-H

Needle 21M: 21XZ-R