Is it possible to add fork oil with the forks inplace? I have a 2015 Versys 650 and my forks were leaking, so I made a tool and cleaned some dirt out from around my seals and it appears that the leak has stopped. But since i've obviously lost some fluid I would like to replace it. Is it possible to do so on the bike? If you have to take the forks off does it make more sense to replace all the oil and maybe even the seals? Should I just ride with slightly less fork oil? I havent ever messed with forks much. I appreciate any input.