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Automatic Choke

NOTE: Choke coil cover is retained on housing by rivets to prevent tampering with factory adjustment. If necessary to remove cover, refer to DISASSEMBLY  and REASSEMBLY  procedures in this article.
Fig 1: Choke Unloader Adjustment
G09360551Courtesy of GENERAL MOTORS COMPANY

Choke thermostatic cover and coil must be installed prior to performing adjustment.