go to orielys or advanced etc...and buy the little white plastic fuel line removal kit, its very cheap and should push the hose in without issue
similar to the last link.there are many different configs of it. should help with what you are trying to do, the white plastic ones are the thinnest
http://www.ebay.com/itm/1-new-ACTRON-CP5102-FUEL-OIL-LINE-DISCONNECT-KIT-/250633171758?pt=Motors_Car_Truck_Parts_Accessories&hash=item3a5ae6b32e&vxp=mtr#ht_25wt_679
http://www.ebay.com/itm/Kd-Tools-61059-2-Piece-Fuel-Line-Disconnect-Kit-USA-/400470927640?pt=LH_DefaultDomain_0&hash=item5d3ded6918#ht_2579wt_798
http://www.ebay.com/itm/7PC-FUEL-LINE-A-C-QUICK-DISCONNECT-TOOL-KIT-AIR-CONDITION-TRANS-FAST-FREE-SHIP-/251236452313?pt=LH_DefaultDomain_0&hash=item3a7edc07d9#ht_399wt_679