exup valve

exup valve

 I have an exup valve and there is a fair amount of discussion on various forums on the subject of keeping or ditching the exup valve   Most expert opinion concludes that you should keep it.  After all it is there for a purpose and the variation in exhaust tuning that it provides does give real benefits on the road. If the exup valve cable freeplay is out of specification then you will encounter power loss above rough idling and poor throttle respo To adjust this you will first need to turn the ignition On then (do not start the engine) this will reset the servo motor and pulley.