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  1. S

    1994 Black Max 175

    Ok so… Where the 2 hoses off of the thermostats and tee off to the tell tail and a nipple the seems to go to the above water water and leg exhaust. Remove that hose to exhaust an let it free flow in to the water and engine cools a lot better. There is a fair amount of pressure that is coming out...
  2. S

    1994 Black Max 175

    While water pump has been removed inspected now to seal in the leg and rebuilt.
  3. S

    1994 Black Max 175

    only place I could put a pressure gauge is in the out of the thermostats inline on this motor.
  4. S

    1994 Black Max 175

    No pressure gauge and the boat was in the water. There is a delay in telltail until water comes out. 20 seconds.
  5. S

    1994 Black Max 175

    We are having over heat at idle and on plane. Confirmed by mounted temperature sensor and thermal heat gun. It is on both sides of block with reasonable similar temps everywhere but cooling as you get in to centre of block as expected. New poppet valve kit, water pump rebuild, impeller and all...
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