Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 257Get this manual

Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 257

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12 If backlash is LESS than specified, LARGER shim should be usedIf backlash is GREATER than specified, SMALLER shim should be usedNOTE: By adding or subtracting .001 in (0.025mm) shim, the backlash w