The Bolt(4gv) is the cheapest item from this partsfiche.
The Xj600n 1999 4kea Finland 294ke-300e1 Starter Clutch consists of twenty pieces with the Starter Clutch Assy being the most expensive.
Some items from this specific schematic: Shaft Assy, Guide, Upper, Bolt(4gv), Gear, Idler 1.