my oil is turning milky on my trials bike, evan when i drain the oil and put fresh oil in and kick it, it gose back milky straight away, can anyone help me and tell me wot could be the problem plz.

Water pump seal.

Also your combustion chamber cap top seals could be gone (which pressurises the cooling system and pops the seals).

Or could be due to overheating (again this pops the seal) so check fan works properly with the coolant filled up.

thank butt,as it gose my fan has stoped working it my first time owning a trials bike and dnt know much about them, by combustion chamber, do you mean the O ring inside the cap on top of the cylinder?