400ex Shift shaft

[Norris3710]

Hi, I have a buddy who has A 400ex and Where the shifter goes on that shaft there is splines and they are worn off how big of a deal is it to put a new shaft in there?

[cant400exbeatit]

i never did that on a 400ex, but i'm assuming you would have to take the right side case cover off, and then the clutch assembly off........i had to do that to a Mojave one time.....so that's just a guess with the 400

here's something to try though.......i would try taking if off, cleaning it up, putting it back on and making it as tight as i could get it......and then maybe tack it..........see if it holds up

[Norris3710]

Thanks I never thought of tacking it, we have tried to tighten it up several times and just end up breaking the bolt off.

[400exrider707]

I replaced one on a banshee, and on that I didnt' need to take the whole clutch assembly out, just the clutch cover. Just tack it though it will be much easier

[smith_400ex_213]

you have to split the case halves to change the shift shaft....last spring my friend had to do it..cuz the shaft broke at the splines...so u have to split the case halves...and while ur at it u might as well get what ever motor work done now....check the tolerance on the cylinder...check ur rings...seals bearings..vlaves...perdy much everythign that might need replacement