Its been a couple years since I have fished Loon Lake but I dont recall there being a problem with motors. They water ski it so I cant believe you cannot use motors. The only launch I recall is at the Lafalot Restaurant/bar. they have a launch right next the the place and it used to cost $5 to launch. Nice lake. Yes it has Crappie and yellow perch, However I would rather fish Honeoye if your looking of Crappie. Chub