Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 155Get this manual

Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 155

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to open the regulator will equally increaseExample: If there is 50 p.s.L of air pressure on the air rail side of the diaphragm, 60 p.s.L of fuel pressure will be required to open the regulatorThe retu