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  1. Racee1

    Help with Mercury 7.5 Outboard Please!

    Hello, I would like to ask for someones help with connecting the lower crankcase checkvalve hose. I recently bought a replacement powerhead and the connection for the small hose from the lower crankcase check valve is not the same as the previous powerhead. On the previous powerhead the hose...
  2. Racee1

    Mercury 7.5 HP powerhead replacement, lower crankcase checkvalve connection "help"

    Mercury 7.5 HP powerhead replacement, lower crankcase checkvalve connection "help" Hello, I would like to ask for someones help with connecting the lower crankcase checkvalve hose. I recently bought a replacement powerhead and the connection for the small hose from the lower crankcase check...
  3. Racee1

    Connecting a tachometer to a 7.5 hp Mercury Outboard

    Can anyone explain how to connect a tachometer to a Mercury 7.5 hp outboard motor? What type of tachometer will I need, it is to set the timming and maximum throttle set screw as per the manual instructions. Unfortunently, there are no instructions for this. Thanks in advance for any help...Ray
  4. Racee1

    Replacment Powerhead for 7.5 Electric Start Mercury Outboard (4854167)

    Hello, I am asking for help in finding a correct replacement powerhead for a 1977 7.5 hp Mercury Outboard Motor, serial number 4854167. I am trying to locate a replacement which will allow the transfer of the electronic and electrical components. I have found several listed in ebay listings...
  5. Racee1

    Trigger wire connection to powerpak wires/leads

    I am trying to find out if there is a specific connection at the terminal block for the trigger wires to connect to the power pack wires. Are these wires color coded or can either wire connect to either of the trigger wires and power pack trigger wires? Mercury 7.5 hp 1975 serial 4854167 Thank...
  6. Racee1

    Prop specifications for a 1970-1971 Mercury 7.5 hp outboard

    I am trying to find out the prop specifications for a 1970-1971 Mercury Outboard Motor. Such as the spline count, the diameter, and the variables or alternate props available. According to a chart I read I may be able to replace the three blade prop with a 2 blade prop and gain a little speed ...
  7. Racee1

    Identify Mercury 7.5 hp outboard.

    Can someone help me accurately identify an electric start Mercury 7.5 hp outboard motor ? Serial number 2812359 Motor has a lightweight fiberglass cowl cover and blue band decals. Oddley enough I cannot locate a wiring diagram specific to this particular motor. The manual I have from mercury is...
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