Recent content by Hipfisher

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    mounting height of motor

    Still trying to determine what parameter to change on a F150 Yamaha 25" shaft mounted on a '93 201 Mako. While up on plane at 4300 RPM and 30 mph the anti cavitation plate is under water. The water level while on plane is at the bottom fin of the lower unit extension which is about 2 inches...
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    Feed back on a prop for a F150

    I?ve recently re-powered my 1993 201 Mako from a 200 hp 2 stroke to a F150 four stroke. The original engine had no problems turning a 17? pitch Yamaha ?black steel? prop to the specified 5500 rpm at WOT. The new F150, however, is only getting 5100 rpm at WOT. Not really surprising when dropping...
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    Yamaha oil problem?

    Attempted to take the boat out today ('93 200hp 2 stroke). About 5 minutes away from the dock running at 4K rpm I experienced a sudden loss of power and the engine quit. Checked obvious things; no alarms, temp gage normal, drained some fuel from water separator-looked good, oil level in under...
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