jeep wont start

i been have this problem on and off for a year now . i drop the trans to do a cluch. and now it will not start and i do not know why everything works but when you trun the key the starter only bumps the engine . it moves like and inch and stops if you hold the key things start to smoke . got new starter and relay still same porblem every thing works out side of car i am lost and cant fuger this out .

jeep cj7 1985 2.5 amc

jeep wont start