Carburetor circuit illustrations

Full-page cut-away drawings of the Model BC carburetor showing its internal passages. The labelled views show the idle restriction, idle air bleed, idle adjusting needle and idle discharge holes, plus the main metering jet, main well support, air bleed, discharge nozzle and throttle valve, with the throttle shown closed and partly open.

What this section covers

• Idle circuit cut-away
• Main metering circuit cut-away
• Idle adjusting needle and discharge holes
• Throttle valve positions