I have been given a microdynamics rl5 rev limiter which I think is fairly old although looks in good condition, I wired it as per instructions off t'internet as it had none with it, it doesn't work, maybe not surprislng but before I bin it, my one has an extra yellow wire and an orange one neither of which are mentioned in online instructions, anyone got experience of this limiter?, do these wires do anything or do I have to do anything with them? any help appreciated as it would be a shame to bin a working unit, it's attached to a 4 cylinder A series mini engine
thanks Roger