I have a 88 BC 2 with 2.9 and 5spd. Here's my problem. Starts great when cold, ie..sits overnight. Starts fine if you allow it to warm up, cut it off and restart within a minute or two. But if you let it warm up, cut it off, then let it sit 30 minutes or so it's hard to restart. Engine will crank 3-5 seconds, run rough for 5-10 seconds, then runs fine. Also notice slight smell of fuel at same time as hard starting, Any ideas?? Otherwise truck runs great and only has problem in this one particular scenario.

 

Having a similar problem on my 89 Bronco II. Sometimes it happens & sometimes not???.Did you figure your problem out?