Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 487Get this manual

Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 487

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FUEL INJECTION DESCRIPTIONS AND SYSTEM OPERATION
Idle Air Control (IAC) Valve By moving conical valve known as pintle, IN, toward the seat (to decrease air flow), or OUT, away from the seat (to