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    Cannot find serial number

    I know it is a 1978 M900 90 hp inline six affectionately known as the Tower of Power series. My first ever Mercury. There is nothing on the bracket where most point to for getting the serial number. I poked around with the wonderful wrap around tin cover off but could not see anything but that...
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    1970 and 1971 60 HP Johnson motors solenoid (blue green) Wires

    I have two near identical motors. I have pulled the gearcase on the 1970 and in the process pulled the shift wires down with the gear case through the leg, using a string attached to the ends and up top to keep a pull back for reassembly. I keep studying the assemblies in the parts section and...
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    Johnson 60ESL70D Lower unit lubricant fill

    Since the lower was off waiting for parts to redo the water pump system, I wanted to drain and fill the lower with lubricant. I got two quarts of Type C lubricant required for the electric shift/oil pump lower. I set the lower up on two projecting 2X4 s clamped to a table. When I got the...
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    1970 Johnson 60 HP (60ESL70D) Idle fuel and timing (RPM)

    After reading a lot of threads on here I have gleaned some good info on setting the idle needles, maybe the idle RPMs with the trunnion but that is still not 100 percent. One trial led to decent idling but did not allow the cam to go to full open on the butterflies. I have the service manual...
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