The gas has to catch up with the sudden influx of air. This is probably a normal condition depending on what type of motor you have and how much it hesitates.
If it hesitates for what seems like too long, it could be a number of things. It could be from jets in the carburetor being slightly gummed up. If it has a points system it could be due to the points being out of adjustment. A tune up wouldn't hurt to start with.
The powerboat swerved as he opened the throttle, and his passenger was thrown from the boat.
On the right side of the engine (looking from behind) there is a switch with two press-on sides (up, down) or at the throttle control (obviously inside the boat )
stay with the boat and signal for help.
A boat with a gasoline inboard engine
one for the throttle and one for steering
power boat
speed boat
There is no simple answer to this. It depends on the weight and hydrodynamics of the hull and the horsepower and rpm of the engine. It also depends on how you want the boat to perform. For a ski-boat, you want a lot of power "out of the hole", for a speed-boat you might want top end performance. As a general rule, boat manufacturers pick a prop that puts the same power into the water that the engine is capable of producing at wide open throttle. Check with the boat manufacturer or dealer for recommendations. Other than that, the only way is to experiment with different props.
I have a 2.7m Inflatable boat and have a 2.5hp Marriner engine the engine will allow the boat to cruise at around 8knots and that is with 3 of us in the boat.
It's called a "Gangway"
A boat collapses when the engine is not functioning well.
the propeller turns and the boat goes