Lets Check Out a long Unused 3 hp Johnson Outboard, Will It Run 

Thanks for watching. I am glad you found the video useful.

Is the bogging and dying tied to the putting it in gear or is it that you run it for x amount of time before you put it in gear every time? If it is a time thing, then that is likely fuel system related, the carburetor probably needs cleaning. If the issue is indeed tied to the putting it into gear, then you likely have a failure in your lower unit/gear box. As I say in almost every outboard motor video, do not run the motor without submerging the lower unit in water, the water pump impellor is rubber and will be smoked in about 15 seconds without water to cool it.

I've had it in gear in a bucket of water but when on the water it boggs and dies I've changed spark plug and new gas, cleaned lines its like it won't idle low rpms

And if it mid to high throttle and put it in gear it still dies

​@@DougsMessyGarageit's actually a 2000 3.5 Johnson

@@WileyYonce I'm going to guess the main jet in your carburetor is partially blocked. The carb should have two jets, one for idle speeds and one for high throttle. If it idles okay but dies at higher throttle settings, the idle jet is likely okay and the main one is partially or fully blocked.