Need advice inserting primary drive seal

[Squishman]

It still leaks and it got worse. I took the front sprocket off and the seal was wet with fresh oil at the bottom of the seal. I pulled it out and then attempted to insert a new one, but I damaged it. I have one more (the ebay seller sent me two seal kits, if you recall) and I am afraid I will not be successful without clear direction! I smeared oil on the surfaces of the new one I tried to put in. Then I found a large socket not quite as big as the seal and attempted to tap it in . It didn't work! what do I do to get the seal in properly? I want to list the bike on ebay this weekend. Do I try to push it in manually as far as possible without tools first?

 

[5twins]

The seal holes in the cases are line bored and that gives then very sharp edges. You'll want to "break" that sharp edge with a small sharp knife or a Dremel tool. Then, instead of oiling the new seal O.D., smear some Yamabond on it. This will act as a lube but also help seal it in the hole.

 

[Squishman]

The seal holes in the cases are line bored and that gives then very sharp edges. You'll want to "break" that sharp edge with a small sharp knife or a Dremel tool. Then, instead of oiling the new seal O.D., smear some Yamabond on it. This will act as a lube but also help seal it in the hole.

Should it go in manually (no tools), at least part way? Then tap it in?

 

[Jan_P]

Yes to get rid of the sharp edges
I use grease on seals tapping them in.
I have a small piece of pipe -- can it be 2 Inch that fits well
Makes the force hit on more or less half of the circumference
Tapping a little at both sides getting it in
It can be difficult pushing it in without tools .But if you have strong hands by all means use it

 

[5twins]

Yes, I'd start it manually and once it's part way in, and square, then tap it in with a suitably sized socket or length of pipe.

 

[Squishman]

There is a ridge on the OD of the seal. Am I correct to assume that is how deep you insert it? In other words, don't tap it in past the ridge?

 

[Squishman]

I successfully inserted the seal to the ridge. Now, if someone can tell me if I tap it in further. I took a photo of the original seal, but unfortunately, my camera was straight on, not at an angle, so I cannot tell from my photo.

 

[Squishman]

Solved! I drove it in flush.

 

[Squishman]

I forgot to post that it went in nicely and no leaks. Yeah baby!