Removing inner primary to get to the transmission shaft seal that's leaking.
Got everything off but the nut on Jackshaft bolt. Need suggestion on how to hold the bolt so I can turn the nut off?


Help appreciated.

 

If you're referring to the large nut holding the drive sprocket on, I'd suggest an impact wrench. Put the trans in gear. I'd have to check the torque spec on it, but it's well over 150 ft/lbs. Good time to upgrade to the later style setup or the JIMS locknut.

 

Jackshaft is the bolt that comes through the starter, its held in by nut with lock wire. The clutch is already off. Yup that one is torqued pretty good but 3 foot cheater bar took it off no problem.

 

I use a rag and a pair of channel locks to hold the starter drive gear in place while I pull off the starter jackshaft bolt.

Don't forget to lever down the lock tab on the thrust washer.

 

Thanks. I was looking for something more complicated, but that will work. LOL. Just to confirm, that nut has to come off to get the inner primary off?

 

I would add to use a drop of locktite on it also as I had a layover in Little Rock while they fixed the issue of the bolt on my 94 coming loose even with the tab holding it. Guy said he sees it a lot when there is no locktite on them.

It chewed up the coupling, so I had to buy the jack shaft kit to get it fixed. $385 and it was worth it as I had ridden up from Houston and it was 95 degrees up there. Everything was up to operating temperature let's just say.. LOL..

I had just fixed it two days earlier when it came loose on me before I left and I just used the tab on a new piece to secure it.

Locktite from now on. Always..

Griz

 

It's a EVO!!!
There ain't nothing complicated about it.

And yes you have to take the starter jackshaft off to get the inner primary off.

As Griz says locktight is your friend.

 

Appreciate advice. Good one on the locktite, will do. Went through primary last summer, had plug failure at rotor/stator. Fried the wiring. Fixed that and then this summer came back from a ride and was thinking wow this bike runs so sweet. Went out next morning and a puddle of tranny fluid coming from behind primary.