#17 and 18

[PEB]

In the diagram for the 250-300 does number 18 the o-ring go outside or inside the seal. I assume it rides on the outside of #17 the bushing. Also how is the bushing supposed to be oriented? It has one end with a small taper on the outside edge, should this face the inside or outside of the engine?

[gasgasman]

The o-ring goes on after the seal.
The tapered part of the sleeve faces the seal. The bushing is tapered so you don't cut the seal when you install it.

[PEB]

Thank you! Just to be crystal clear the oring goes around the bushing and is held in place by the crank weight gear and nut, correct?

[gasgasman]

Yes, that is correct.