I went to one of the oil change places here(Oil Can Henrys) and had them pump mine, actually they handed me the gun, and I pumped it full and it came out both top and bottom and it is still coming out of the bottom on hot days.... As was stated prior, the bearings are pre greased during assembly and that will in most cases will last for many, many trouble free years of riding. I have taken steering head-sets apart and some appeared to have never been touched, or greased and one bike was an '83 and it was still perfect in function would have gone much farther. I pumped mine full to take up slop and then see if a head shake was being caused by excess play in that area. I ended up learning that it helped and I had to adjust for fall away... Now I got spare grease on stuff that I will be cleaning up for awhile.... :/