Steims posted:It appears from your photos that yellow is the hot and the white is common but let's confirm. With your transformer powered off, set the locomotive on the track. Take you multi-meter set to check continuity and measure resistance from the junction of the red, black and sheathed wire on side of drive/motor to an outside rail. If it reads less than 1 ohm then that is your common and the white at the tender is common.
Do the same for the junction on the E-unit where the tender yellow (black) connects and measure to center rail. Should see less than 1 ohm confirming the tender yellow is hot.
The yellow/green junction is the hot feeding the smoke unit. The common side of smoke unit uses the chassis. The tender is not feeding the smoke unit.
Thank you! It’s never going to run as well as my MTH engines, but it sure sounds better!
