My outboard is a Johnson 50hp and is 20 years old. The bendex gear was getting bad and flywheel teeth were also real worn. I changed the bendex and the flywheel and everything turns smooth. My problem is that the starter will not turn flywheel upon engagement. It engages fine but just doesn't have the power to spin flywheel. If I remove the plugs, it spins it with no problem. It also will smoke a little while trying to spin flywheel. Battery is good so is it time to replace starter?