1. Three way petcock
A. Reserve
B. Open
C. Closed
2. Air cleaner
3. Air corrector jet
4. Slow running jet
5. Air calibrator to idling jet
6. Throttle slide set screw
7. Air calibrator to starter jet
8. Starter jet
9. Starter valve
10. Throttle slide
11. Intake port
12. Slow running adjuster screw
13. Main jet
14. Mixer
15. Float and chamber
16. Cylinder transfer ports
17. Piston transfer port
18. Exhaust duct
19. Exhaust duct for fuel
1. Three way petcock