I fitted new crank seals before the Heaven Round 2 meeting on the weekend.
But the bike was still blowing so much smoke my wife said she always knew where I was on the track.
I didn't notice any o-ring when I was replacing the crank seals.
The Yamaha part number is 93210-29282-00.
Can I get this from my local bearing supplier? What should I ask for?
While I am at it, I could get some new main bearings. What should I ask for?