Water in oil and water coming out of pilot hole taken out outer seal but the back one dose not look that good and to replace do i have to remove the head please help thanks
Basically the only way water can get in the oil is if there is a corrosion hole in the housing behind the pump impellor. Water pumps have only 1 seal and if that leaks water will drain from a hole in the pump housing under neath the pump.
SOURCE: water leak
That water leaking is due to a head gasket pressurizing the system. That's usually one of the first signs of trouble on the horizon. The seal is not the culprit. You can check the water pump seal by draining the oil. If you have any coolant in it then you may be lucky and just have a pump seal blown in which case it is a relatively easy fix. You will need to remove the side cover and the water pump impeller to get to the seal. You can use a seal puller to get the old one out and I would use a socket or something the same size as the OUTSIDE of the new seal. DO NOT let anything hit the inside of the seal or you will kill it.
I really hate to tell you this but most often it's a head gasket leaking that causes the water problem. Is it just a drop her and there or is it pretty obvious? That makes a huge difference. If the bike gets really hot you can over pressurize the system causing the seal to weep/leak, if it drips on a regular basis then the HG needs to be replaced.
SOURCE: Yamaha WR250F Leaking coolant
yes thats the weep hole it leaks when your water pump iner seal starts going bad,
SOURCE: front fork leaking oil from bottom of the seal.
change the oil seals and oil in the fork,and avoid wheelies on the bike and off road biking
SOURCE: 2000 yz125 - Water pump seal change
The two seals in the diagram below are separated by the casing they fit into. The impeller is threaded to screw onto the impeller shaft. I think you already knew that by your "holding the tire" note. The center casing does not get split. The right casing does remove then a wrench is used on the shaft as the impeller unscrews counter clockwise. It is risky to "Lock the wheel" because the gear on the impeller is very thin and can break.
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SOURCE: Fork seal replacement on 82 yamaha 750 seca
On the top and bottom parts of the triple tree either both or one will have bolts. First take the fender off. Take the front tire off. Loosen the bolts on the triple tree. They should slide down. If not you have to get a rubber mallet and tap on the top of the fork and twist the fork as you are doing this. Once it is out, pull the dust seal off the top of the lower fork. There will be a clip inside, take the clip off drain the oil out of the top or bottom depending on how the forks are made. Push the fork tube down into the lower fork slightly, pull both apart with a firm tug and they should separate.
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