Toro 500 EFI Service Manual page 41

13. Remove the forward heat shield from the exhaust
pipe; then remove the cap screws securing the
exhaust pipe to the cylinder head.
14. Disconnect the O2 sensor; then remove the O2 sensor.
15. Remove the two exhaust springs at the muffler; then
remove the exhaust pipe. Account for a grafoil seal
in the cylinder head and a grafoil seal at the muffler.
HDX147A
16. Remove the cap screws securing the driveshafts to
the front and rear engine flanges; then disconnect
the upper and lower coolant hoses.
HDX152A
HDX154
17. Disconnect the oil cooler lines and plug them to
prevent oil spillage.
18. Remove the nuts from the rear engine mounts;
then remove the front through-bolt.
HDX247
HDX153A
HDX158A
HDX159A
39