I have a gilera runner with a 172 malossi kit on it . After filling the water bottle up with coolant it comes straight out of the head but which the water pipes go to on the head . I have removed the plastic part and noticed a gasket there . My question is can I purchase this gasket that fits in the plastic part as I can’t find one anywhere and would this stop the bike from starting . Obviously I need to sort the leak out but I woukdnt have thought this would havecanything to do with compression as the head is underneath it .
