Replace fuse #5.
That is K38 relay feed.

ftp://members.aol.com/ajdalton7/K38.jpg

If that does not work, jumper bat 12v pos to center terminal of the 3 wire connector on the firewall between the engine and booster area..just to the left of brake reservoir.. [ X/27-v/wht on schematic] ..that is starter sol feed and will test starter circuit .

Report findings.........