I'm helping my son replace the seals on his 2004 CRF250x Showa forks. As per the service manual, We pull the cartridge and drain the tube. We extend the rod, fill with oil, proceed to pump, pump, pump the rod to bleed the air, then fill the oil to the proper level and reinsert the cartridge. At this point all seems right, as the rod extends on its own when compressed. Now, following the service manual, we pump the piston rod to full stroke and drain the extra oil from the oil hole. However, it seems like much more than 17cm3 of oil comes out. And once drained, the rod will not extend on its own more than and inch. Something certainly isn't right. What am I missing here?