Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 81Get this manual
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7 Install pump onto engi neTorqu to 50-60 lbin(S .6-6.B Nm) 8 Insta ll hoses onto proper fittings and secure with sta-straps9 Run eng ine and check for leaks 3 If necessary, adjust float level by bend