California Models

Warm up engine to normal operating temperature. Stop engine and remove air cleaner assembly. Disconnect vacuum sensing tube from choke return diaphragm. With automatic transmission in Neutral, start and run engine at idle speed. Reconnect vacuum sensing tube to choke return diaphragm. Diaphragm shaft should be fully pulled into diaphragm within 20-70 seconds.

Fig 1: Checking Altitude Compensator

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Fig 2: Checking Automatic Choke Release

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