2000 yz125

[wyseguy007]

I've got a 2000 yz125 thats leaking coolant out of a little hole on the botton side of the water pump. I assume this is a way of telling me that the bearings or seals or something is bad. anyone know what this is?

[Aus_Rider_22]

Is the little hole where a bolt goes, or is it a crack?

If it's coming from the bolt in the middle on the bottom that is the biggest, then I would replace the washer.

[wyseguy007]

no the hole is not a bolt hole or a crack, it is a small hole that is there from the factory.

[Aus_Rider_22]

Could you maybe take a photo of the hole?

On mine , the only holes are for bolts....

[ShaneRider]

Originally Posted by Aus_Rider_22

Is the little hole where a bolt goes, or is it a crack?

If it's coming from the bolt in the middle on the bottom that is the biggest, then I would replace the washer.

Yea, that was the problem on my friends bike.

[Aus_Rider_22]

Originally Posted by ShaneRider

Yea, that was the problem on my friends bike.

Yeah, everytime I drain the coolant, I have to replace the washer. It usually won't seat exactly the same and therefore a leak develops..

BTW, what was your friend's bike?

[wyseguy007]

The hole is on the very bottom of the bike. You have to kneel down and crank you're head around to see it. Its directly below the water pump. About 1/8" hole.