YamDan_64

HI problem is that when I am riding my Yamaha DT 125R, It over heats. When I take a look in the radiator, there is nothing in there because it as overflowed out of the radiator expansion pack on the back of the bike, i have also had the head and barrel skimmed twice as im sure it was warped and thought that was the problem but it still seems to overheat and spit water out Please can you tell me why this is happening and how to fix it.

Hey hows it going it costs around £30 for a rebore from an engine reconditioning specialist!!!cheers