WOW! Is all I have to say. Long story short Yamaha has just plain left out a few very important things in their service manual (Honda manuals are the best). Needless to say im very disappointed! They dont even mention the oil pump check valve assembly (at least I cannot find it) and most importantly to me they dont mention the crank shaft seal assembly (in the right side kick start cover, very close to the check valve). The seal is "red" on one side and I made the mistake of not paying close attention to its orientation when I removed it (red facing in or out, since I figured the service manual would at least mention its existence). I can tell you this much, the marks left on the seal when I removed it looks like red was facing away from me which seems backwards to logic. Can anyone confirm orientation?