Throttle Opener

Warm engine to normal operating temperature. Ensure idle speed is 650-750 RPM. Disconnect vacuum hose from throttle opener, and plug hose end. Run engine at 2500 RPM then release throttle. See THROTTLE OPENER SET SPEED SPECIFICATIONS  table. If throttle opener set speed is not as specified:

• Replace throttle body.
• Turn throttle opener adjustment screw until within specification.