I am rebuilding my Bolens tractor and am doing well but I am stumped on how to remove the flywheel. I am hoping someone can tell me the trick so I don't need to buy the shop manual just to find out about this one step. The motor is a 1987, 16 HP Briggs opposed twin cylinder. There is no center bolt on the flywheel. The tractor is a shaft drive and the driveshaft yolk bolts onto the center of the flywheel. Thanks for your help.