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    Alarm signal from control box

    Hi All<br />Again it is that time of year when my boat gets put in the water for some fun. I have a problem, not sure if its a bigin or not. I have an 88 Merc 70 with very low hours on it, but what is happening is the Alarm is sounding at the control box/throttle control, this can be muted by...
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    1988 70hp merc to 90hp conversion

    Hi All<br />I bought this motor new in 89 and when buying it i checked some specs and thought that this would be a great motor to convert to a 90hp when the time was right... Is is possible to make this into a 90hp by changing some parts and if so what.. Do I need to change the head and carbs...
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