I may have to replace a flywheel on a 2000 GTX DI (947 engine) Can the magneto cover be removed without pulling engine? Can hear starter spin but not cranking. Think either bendex is messed up or a tooth on flywheel. Either way Magneto cover needs to be removed. Trying to do without pulling engine. Is it possible. Havent seen the ski yet, it is a friends, Trying to give him an idea of the cost.