AboutRich Johnston Expertise I have honda repair experience on all vintage Hondas from 1972 through 1980. I worked in a Honda dealership while going to college and have experience in all types of honda motorcyle repair. I don't have any experience on other brands.
Experience
Education/Credentials BS degree in mechanical engineering, Honda technical school graduate of 1975
Expert: Rich Johnston Date: 7/22/2008 Subject: Turn Signals on a 1970 CT90
Question I have bought a 1970 CT90 Honda Trail Bike. It didn't come with rear turn signal lights, but it has a switch on the left handle bar. There are two wires capped with plastic near the rear of the back fender. I suppose these are for turn signal lights, but I connected a light to one of the wire connections and it didn't work. Are those wires for the turn signal lights and if so, how do I get them to work.
chris
Answer Chris, this is an easy one. The light blue and the orange wires are the turnsignal leads but they supply 12 volts to the bulbs. Those turnsignals have to be grounded. Originally, they had a wire under the pinch bolt holding the turnsignal to the mounting stem and that green wire was providing the ground circuit. If the turn signals aren't grounded they won't work.
