No sorry. I wasn't saying the lifter shouldn't bleed off. They will bleed especially like ILENGINE mentioned if that particular valve stops in the open position once the engine stops spinning and puts pressure on that lifter.
As far as how to adjust the rocker arms, there is no adjustment. You...
Depending on the model #, the head will have to come off to remove the lifters. If it will start after letting it sit, the lifter is probably bleeding down. I'd check the oil pressure before I didn't anything else. Again, depending on the model #, Kohler had a rare issue of too much oil pressure...