All the Jeep TSMs (factory service manuals) that I've seen have had a good drawing of the fuel tank plumbing. I do not have a manual for anything as new as '86. If you don't have the manual, you could buy one (excellent reference - recommended) or maybe someone will copy that page for you.
There is the first three sections of the '82 TSM here - http://oljeep.com/edge_parts_man.html
- maybe the fuel plumbing is the same.
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk