1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 232Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 232

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SPARK PLUGS INSPECT ION
ti ght se al in cy inderor thi re son, we I! ne cessity of mainta inin correc plu ga p, co rre ct torque is very important during in ta lla ti on6 Replace or re pair ny l