Hi I have had my sons Sherco 80 for over a year with no problems, the other day it started to leak coolant out of the expansion pipe attached to the radiator cap. I have never topped the coolant up in the time I have owned the bike. So I fitted a new radiator cap purchased from Slat Shop but this has made no difference, so I next removed the head and checked the O rings which look fine, but I will still replace them with a new set. Has anybody ever had a similar problem? Any help would be great.
Thanks