In complying with the requirements of any statute, regulation or ordinance restricting the horsepower or size of the engine on any vessel while being operated on an inland body of water, a person may (1) in the case of an outboard motor, remove the propeller from the boat’s engine and incline the engine out of the water so that the absence of the propeller is clearly visible, or (2) in the case of an inboard motor, remove the propeller from the boat’s engine and incline or trim the engine to an upright position. This section shall not be construed to allow vessels with the gasoline-powered engines on bodies of water where such engines are not allowed.