[Why would a water pump cease up?]

Thank you

[Why would a water pump cease up?]

I am asking this question on behalf of my son who has just recently purchased a "H" reg Yamaha DT 125, the previous owner of this bike had it standing for some months, my son only picked it up last Saturday, he discovered it was losing water, checked the water pump and found that it has ceased up! What would cause this and does it mean he would have to change the head gasket too? Many thanks.

[Coolant problems, do I need to change the head gasket]

Thank you thank you thank you for your reply, I think I must be going blind, Ive looked all over this site and cannot for the life of me find the Workshop to post this properly, again thanks (not a very good computer operator either)

[Coolant problems, do I need to change the head gasket]

Thanks MRR, I'll start again!!!!!!!

Hi everyone, have a great passion for Yamaha bikes, I have an XS650 RD and DT125, there is also my pride and joy the Harley Davidson, from Somerset so get a really good ride out in the bike country.

[Coolant problems, do I need to change the head gasket]

oops, was I suppose to say something else. oh lol I gerrit lol. Im at a loss with this flaming bike, I forgot to mention that it has only just been recently bought last Saturday, the previous owner had mentioned it had been standing for some time, how long no idea, its my son thats purchased it but we are wondering that if we needed to replace the head gasket too?

[Coolant problems, do I need to change the head gasket]

Why would a water pump cease up?