I have a Kohler single handle with sprayer, kitchen faucet. The hot water is just a small drizzle. I called and they sent out a spacer assembly. That did not solve the problem, in fact there was now NO hot water. Called again and they sent out new hoses and the brass connector at the handle end, now it's back to a drizzle. The hot water flows just fine to the dishwasher, so we are at a loss as to what the problem could be. Does anyone have any other ideas before I bite the bullet and call an expensive plumber?

Stop the presses. I kept searching through Google and found a new best friend www.plgb.com. Actually it was something we should have tried at the beginning, but we aren't plumbers. Shut off the hot, drain the flex hose and back flush the hot from the cold. Brand new faucet should NOT have that many little black plastic pieces in it. But hallelujah, we have hot water.