Posted a thread 2 wks ago about engine WR426 high idle at running temperature, normal when cold. Replaced std PJ #42 w/ new PJ#48.That kicked it in the A**. Engine has never idled better. Funny thing, after 2 - 3 minutes at idle, the exhaust pipe near the Cyl head no longer glows cherry red either. Clearly, the engine mixture was very lean at idle. Transition from idle to grunt is very smooth and fast. Thanks for all the help.