Mercury Optimax 75, 90, 115, DFI starting year 2004 service manual., Page 170Get this manual
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DIRECT FUEL INJECTION
End Gap Top Ring Middle Ring Bottom Ring
0.150.30 mm (0.00590.0118 in 0.150.30 mm (0.00590.0118 in 0.100.35 mm (0.00390.014 in 0.25 mm (0.010 in
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