1991-1993 Yamaha Exciter II-570 Service Manual, Page 370Get this manual
_ FOR EX570(E)ST
CARBURETION
CARBURETOR
G) Starter plunger
Airscrew Piston valve Throttle stop screw Valve seat assembly Pilot jet (j) Float arm
Float Float chamber cover Jet needle Main jet Main jet ring Main nozzle Carburetor switch