Dirtbike - Water pump seals and bearing replacement step by step (CR, CRF, KX, YZ, RM, RMZ)

[@harrissahinovic4743]

Great video, just did the water pump seals on my 07 crf250r and have a feeling I put them in facing the wrong way because it’s leaking out of the weep hole

[@wideopenmoto]

So the cup side should face the fluid (this is on all seals). So your yours, the flat side of the water seal will face the flat side of the oil seal. If they are correct and still leaking, inspect your impeller shaft!

[@wideopenmoto]

Some bikes are different. So it depends on the bike. But most bikes have 2 seals, one cup side faces coolant, and one cup side faces oil. If there is one seal, it’s possible the one seal is cupped on both sides

[@mcdmn717]

Would have been nice to see the removal of the impeller and shaft. Mine doesn’t want to come out at all. Still very helpful tips so thanks! 2014 crf250

[@thisjohn34]

I'm guessing the oil needs to be drained as well when doing this

[@TheSnowWolf1000]

wish there was a diagnostics video out there. my wr450f is making a nasty rattle noise on the clutch side and ive been looking for months and can find any information on it at all.

[@wideopenmoto]

Thanks for the input. I’ll try to get some diagnostic videos out soon. But your bike, My suggestion is to take apart and start inspecting everything.

[@terrier_eft]

how do i get off the impeller ?

[@wideopenmoto]

Easiest when the cover is on the bike, some impellers are LH threds.

[@terrier_eft]

@@wideopenmoto when i try to loosen it . the whole motor is spinning. Is impact wrench good idea or im gonna mess my bike .. I own a CR 250 94' if that helps

[@wideopenmoto]

I use an electric impact on all of them. Just make sure you go the right way.

[@mcdmn717]

do we have a mechanical seal video yet?

[@wideopenmoto]

Hey no i dont have a video yet for that. Next ones that comes in i will make it.