Throttle Opener
- Warm engine to normal operating temperature. Ensure idle speed is within specification. See IDLE SPEED & MIXTURE in ADJUSTMENTS article.
- Disconnect and plug vacuum hose at throttle opener located on throttle body. See Fig 1. Start engine and note engine speed. Engine speed should be 700-1000 RPM.
- Replace throttle body if engine speed is not within specification. Shut engine off. Reinstall vacuum hose on throttle opener. Start engine and ensure engine returns to proper idle speed.