Looking For Wiring Diagram For Z50 Minitrail K2 No Battery Guys, I am looking for a wiring diagram or a color chart for the wires for a Z50 Minitrail K2 with no battery. Here is my situation I am converting everything over to 12 volts and CDI ignition and would like to incorporate the original harness into this. Wiring Diagrams - oldmanhonda Wiring Diagrams. Here is a selection of wiring diagrams taken from my collection of manuals that may help get you through your electrical problems. Z50 wiring - Honda Trail - CT90 & CT110 Forum Here's a link to the 1971 Honda Z59 Owner's Manual and on page 50 is the wiring diagram and I don't see a battery on that page. My eyes are old and tired, if I can find a Z50 wiring diagram in a Z50 Owner's Manual I feel more confident.