The tacho loom is dead easy to make. You need to join the colours up - green from the box is the tacho pulse, yellow is 12v and black is neg. The tacho if it is Yamaha will have the same colour coding. To do a proper job you can get the sealed Yamaha type crimped bullets on eBay etc.
Originally Posted by stoke1964
juts looking for a tacho loom now, other stuff sorted
did you have any joy