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    1978 Mercury Black Max V1500, Surging at high throttle.

    Greetings, So I have a Mercury 150hp Black Max that starts great and Idol's great, but any thing over about 1/4 throttle and it starts surging and will not go over 3100 rpm, even in neutral. So far I have replaced all electronics, Stater, trigger, switch boxes, all wires, Plugs, coils...
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    1978 Mercury Black Max 150 Tilt/Trim Pass Through ?

    Just starting a rebuild of a 1997 Javalen 389FS that has a 1978 mercury black max 150hp on it. When talking to a friend we were wondering if the lower motor mount bolts are actually where the Tilt/Trim tubes are supposed to come through or is this unsafe? Very new to this and just never seen one...
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