The navigation channel will work just fine for your Jon boat. Keep in mind that it's a water cooled so if you get into shallow water, there might be some sand or mud pulled into the water pump intakes that will chew up the rubber impeller in the lower unit of the motor.So, I won't be able to take out my new toy for a few weeks, due to responsibilities around the house, and an impending cross country trip. But, thankfully I have been told that after a 2 week vacation living in a 21ft travel trailer together, that I'll be required to get out of the house for a few days and go hunting/fishing upon our return. I'm not religious or anything, but God bless this woman. I found myself a real keeper. So I figure I'll take the boat out for a half day or so when we first get back, before my trip. Use it as a time to play with the finders, Get a feel for the boat/motor, practice loading/unloading a few times. Make sure there isn't any issues or problems I need to attend to before taking my 5-7day trip. Probably go out to shawnee twin lakes, the girlfriends dad has a house on the lake, suggested I take the boat out so we can play with it. He's more of a skiing kinda guy, and is disappointed that my 9.9 horse won't work well for pulling him up on skis. But, he's grown up on boats, and I figure he can help with some pointers.
My thought for the trip are to try out some smaller bodies of water, maybe go out and try a river. Near me the Canadian and deep fork are more or less just drainage ditches unless they're flooding and have trees floating down them. I was thinking of trying out the Arkansas and or Canadian rivers between Weber Falls/Eufala and RS Kerr Lake, ? Jon Boats are made to be river boats, would this be a good idea? If I stick to the rivers am I going to be fighting much traffic?
The motor should have a tell tale on the right side of it that will maintain a stream of water so you can tell the water pump is operating correctly. (I think)
If it quits streaming water, the water pump is bad. Easy fix by the owner. Parts run about $30 bucks last time I rebuilt my 20 hp water pump and took about two hours.
Prices don't vary much between the 20 hp or the 200 hp. Easy maintenance.