speed of the motor not depending the H P. It depends upon no: of poles in the stator and the supply frequency.
190 cc. is about 5 hp.
70
it has a 3.0 v6 hp 190
if you have an inline 4.0 v6 motor it should have about 190 hp on the motor
The listed dry weight for a 1995 model, 50 hp Johnson outboard is 190 lbs.
Around 130-135 MPH top speed, it could have either the base 305 V8 (170 hp) or the 305 H.O. V8 (190 hp)
if i remember right between 175 and 190 hp I owned an 82 z-28 with the crossfire 305 and it was rated at 165 hp. The 190 hp motor was not until 83 with the HO option and it had a 4 barrel carb.
speed of the motor not depending the H P. It depends upon no: of poles in the stator and the supply frequency.
With the motors spec sheet or a tachometer.
Generally a motor drives some equipment, it could be a fan, or a pump, connected to motor's shaft. The speed of the motor when no equipment is connected to its shaft is known as no load speed.
1 HP electric motor = 1.5 HP hydraulic motor so for a 3 HP electric motor you would need a 4.5 HP hydraulic motor. Also for your information a 1 HP hydraulic motor = 1 2/3 HP gasoline engine.
about 80-90 hp at 5000 rpm