1. Screw the adjuster at the lever all the way in.
2. Go down to the clutch end, push the clutch arm up and pull out the barrel end.
3. Go back up to the lever and remove the cable end, with all the slack from unattached clutch arm.
4. Grease both ends.
5. Assemble lever end first.
6. Adjust the adjuster, until there is 75mm of cable at the clutch end.
7. Hook the bottom barrel back in the clutch arm.
You could also lube the actual clutch lever while you have it all apart, if you really want to get silly. :neener:
If you've done Bike cables, this will be easy-peasy, just get in there and do it. :yes