I have a 1990 200 johnson that I need to remove the flywheel on and I am having probms can anyone give me a suggestion on how to make this thing turn loose
To remove the nut you will need some penetrating oil, a flywheel holder and a breaker bar, or simply an air impact gun. You will then need a harmonic balancer puller to remove the flywheel.
Be sure the taper is clean and dry and torque it to spec on re installation. This is very important.
Harmonic puller. I just popped mine off yesterday and it wasn't an easy task but it's doable. I used a harmonic/steering wheel puller. A buddy of mine told me to tighten it down a few turns then pop the large center bolt on the puller with a hammer. Said it should pop right off. That didn't work. Had to resort to using a breaker bar on the ratchet. It eventually popped right off.