impeller seal replacement tips

2 replies to this topic
  • nashport_native

Posted October 09, 2008 - 04:41 PM


I had a leaking seal on my 99 400, so in the process of trying to remove the impeller from the shaft, the flats twisted off the shaft. :D

so even if you are just changing the seal, I would remove the whole side cover so you can put a wrench on the back side of the shaft (it has 2 flats machined into it for a 13mm wrench)

oh and the impeller shaft carries the same part number from 99-08 on the 400-450 and the yzf450

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted October 09, 2008 - 04:50 PM


How many times have I warned that this would happen? But somebody comes up and says, "Oh, I took mine off that way and nothin' happened so what's the big deal?" Well, here's an example.

BTW, the wrench flats are for a 12mm wrench.

  • nashport_native

Posted October 09, 2008 - 07:30 PM


oppss, your right gray, it was a 12mm.

guess thats what I get for not looking on here first.

I have changed a few of them on my older cr's without removing the side cover.

either way, local shop had the part, it needed replaced anyway. just thought I would let everyone else know, take the extra half an hour and remove the cover too.

Related Content


The "going back to the other darkside" adventure... by Monk

Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  113 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.