Smiles' Top End Rebuild Thread

[yamahama]

For about $15 more you can get a Tourmax seal kit that has all the seals. If you keep the bike, you'll eventually need 'em. I took a chance and ordered 'em (same part #) and it turns out they're ARS... the Japanese company that made the original seals. Good stuff.

To answer your question, yes. Those will work.... 25-40-6 is the correct size.

What do those numbers stand for: 25 40 6 ? I'm looking for a whole, fresh, new ARS seal set. Been looking at some of your poses with the red/green arrows on preferred configuration...spring? mine has no spring! Lol. I need to look more this weekend. from 1st look now, my old cam seals are in the wrong position.

 

[Jim]

What do those numbers stand for: 25 40 6 ?

25 is the shaft diameter it's designed to seal... in mm. 40 is the opening it's designed to press into and 6 is the thickness of the seal.