2002+ Mercury Mariner 150/175/200 EFI 2-stroke Factory Service Manual, Page 509Get this manual

2002+ Mercury Mariner 150/175/200 EFI 2-stroke Factory Service Manual, Page 509

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RIGHT HAND NON-RATCHETING
DETERMINING FORWARD GEAR BACKLASH
IMPORTANT: Bearing carrier must be assembled to provide pilot for propeller shaft