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Full Throttle Switch - All Other Models

  1. Loosen upper left bolt on throttle valve housing. Attach protractor pointer under bolt. Attach protractor to secondary throttle valve shaft, removing shaft nut if necessary. Disconnect wiring to switch. Connect ohmmeter between terminals of switch. See Fig 1 .
  2. Set secondary throttle plate in full open position and move protractor until pointer is on 0°. Allow secondary throttle valve to close about 30° and then reopen to full throttle position.
  3. Ohmmeter must read 0 ohms at 12-8° before full throttle. Loosen mounting screws and adjust switch. Reading must be 0 ohms (continuity) at full throttle position.
Fig 1: Adjusting Full Throttle Switch Ohmmeter MUST read 0 ohms at full throttle position.
G35393
NOTE: For all adjustments not covered in this article, see appropriate article in TUNE-UP section.