Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 82Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 82

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FUEL PUMPINTREGAL FUEL TANK
2 Remove diaphragm by pushing in the plunger while turning the diaphragm 90 clockwise or counterclockwise

aDiaphragmSpringPump BodySpringPlungerUnlock Di