My Kohler 11465 flush handle sticks in the down position after flushing; water continues to run. Shifting the tank lid forward seems to fix the problem, but then there isn't enough room for the open seat and lid to lay back without easily dropping.

No ,you have to hold button to get full flush

It sounds like the electronics is failing, Contact Kohler for a replacement.

If you lift the lid you should see where the handle goes through the porcelin. You can remove the handle by unscrewing the nut inside the tank. Try cleaning the inside of the nut as sometimes water deposits collect in this area and cause binding on the handle shaft. After you clean it up you can apply a very small amount of petrolium jelly to the handle shaft when you reinstall it, this should prevent the problem from happening again.

(Problem 1) if you can see the water running in the bowl it's a good chance that the flappers warn. you'll have to look at the angle where the light hits the water. The water will be rippling where the top of the water meets the inside of the bowl edge.
For more info on how a toilet works = http://www.aplumbers.com/residential/toilet
solution 1
1. tank the tank lid off. 2. flush, the rubber thing that comes up and allows the water to go to the bowl is the flapper 3. remove 4. replace that should fix it.

problem 2 it could be the water levels to high.
(solution 2)
1. tank tank lid off. 2. if the waters flowing over the long tube in the center and down then the water level is too high 3. adjust the level either it will have a ball **** or a float in either case a ball **** adjusts by a screw on the fill valve. the float has a either a metal rod w/ a pinch clamp or a plastic long screw type thing. 4. adjust water level . 5. lift the flapper to allow a little water out til fill valve kicks on then release handle til valve stops . 6. just keep re adjusting til you get the water level right there should be a molded in line for the level on the back of the tank.

I had this issue as well with my toilet. My chain was unattached and had been sucked down the drain under the stopper valve preventing the toilet stopper valve from completely closing and causing the water to continually run. After re-attaching the chain I noticed when I flushed the toilet that the handle did not rise again until I manually pushed it up. After readjusting the chain to a tighter position where the chain was not floating at all but instead holding the stopper valve in place I again flushed to check the reaction. This fixed the issue of the water continually running and also the handle not resetting itself properly.

Here is the steps I took to resolve my issue:

Step 1: Remove the lid off of the tank.

Step 2: Check to see if the chain coming from the Toilet Handle to the Stopper Valve is loose, unattached, or broken.

Step 3: Flush the toilet and check to see if the problem has been fixed. If not readjust the chain to a different position and flush again.

Step 4: If all is resolved replace the tank lid.

Other possible things to check:
Check the Float Ball to see if it's Half-way or more submerged in the water. If it is it needs to be replaced.

I hope this helps!

is there a chance you have an air pocket in the flapper itself... try replacing flapper with a solid black rubber one.... they have more weight to them maybe the lever on the out side of the tank is getting caught up on the bottom of the lid

Which style of flush valve do you have? If it is the dual-flush option (solids/liquids) I do not know how to adjust those. If you have a traditional style, then the flapper or ball is closing too soon. You need to adjust the guide arm (flush ball) higher or shorten the chain between the flapper and the handle. Adjust this carefully or you will have it fail to seat and the toilet will constantly run.

I hope this helps.

Cindy Wells
(who needed to replace the fill valve and the flapper at her home earlier this week)

make sure the water level in flush box is up to water fill line if not adjust the float mech to meet level and try again

The fill valve needs replacement unless you can take the top off snd find out what is keeping it from closing. I had one I took apart for the same reason and found a piece of plastic in the valve seat. Good Luck, Ned

This type of flush system can be re presurised quickly by holding down the flush handle for about good 2 minutes, then release , wait for the tank to be refilled with water.
Now you can flush away your inner rotting mess down tube good-by...