I have a 99 gp800 just replaced topend after destroying the front cyl last season to find out during break in I just scored the front cylinder up was running lean I pulled the stator and found some oil in there need to know how to get the flywheel out and pto coupler off and also do I need to split the cases to change these I live in ocala fl and theres only 1 yamaha dealer in town and its small so they will want an ARM and a leg to do this and would rather do it myself and would the dealer be able to vaccum test it