Boats used on the lake are limited to a 7.5 horsepower outboard motor except pontoon boats which are limited to a 9.9 horsepower motor. Electric motors used as the main propulsion source shall meet the same power limitations. No more than one outboard motor per boat will be allowed. Inboard and inboard/outboard motors are not permitted on the lake. It is not the intent of this requirement to restrict the mounting and use of a 12 volt electric trolling motor in addition to one outboard motor.