I have an older Moen Kitchen faucet that was working OK but was getting "stiff" so I put in a new #1225 Moen cartridge. I now can get no water through the faucet just through the sink sprayer. The new cartridge is identical to the old one.
I am at a loss, I'm not a newbie to home improvement or plumbing but this one has me stumped.

You may have debris inside the faucet, close the angle valves Remove the cartridge, open the angle valve one by one for a few seconds to flush the debris, install the cartridge and so if it is fixed, good luck.

John

If the sprayer's working then your getting water to the valve.
Did you remove the aerator and checked for debris? Can you get water out of the spout without the aerator? Let me know, Tom