YZ250F Water Pump Replacement on 2006

Joined
May 16, 2007
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#1
Hi All!
Im hopeing to get some helpful information on replacing a waterpump!

As it was seriously damaged during an adventure.

THe housing of the water pump is off and the prop thing that looks like a propeller is damaged.

So how do i go about replaceing this?


I know cars in and out but just recently got into bike so sorry if i sound like an idiot :(
Im trying to learn.

Thanks
 
Joined
Oct 19, 2006
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#2
On the Hondas, it's held on with a nut. Remove the nut, remove the impeller, and replace. If there was an impact involved in the damaging of the impeller, it may not be a bad idea to replace the seals, shaft, and bearings as well. That all requires removing the right side cover for the engine.
 
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#3
On THe Yamaha there is a Nut welded to the ipeller as one piece.

Just wondering which way to undo and how to stop the shaft spinning round while undoing?
so i can get the impeller off?

Cheers
 
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#4
I have never had to remove the impeller on a YZ before but I can say that the impeller is removable. To keep it from spinning I suggest taking a pair of Vicegrips and clamping down on it, seeing as it is already damaged and useless.
 
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#5
Ok if anyone has to remove just the impeller and no damage to the shaft.
Its as easy as a left handed thread.
Put bike in gear.
Press on the rear brake.
Undo and relace :)

I have been told things like taake of engine casing etc all bull!
If all thats bust is the impeller then there you have it.