Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 309Get this manual

Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 309

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IGNITION SYSTEM
1 Locate No1 piston in firing position by following instructions aor bbelow: aRemove No1 spark plug and, with finger on plug hole, crank engine until compression is felt in No1 c