Mercury Mariner Models 135 150 175 200 Service Manual, Page 151Get this manual

Mercury Mariner Models 135 150 175 200 Service Manual, Page 151

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TIMING, SYNCHRONIZINGADJUSTING

aIdle Stop ScrewIdle Stop DETONATION CONTROL (200 MODEL) 1 With outboard running in "FORWARD" gear, advance throttle to 3500 RPM and check that spark timing