its got brand new platinum plugs 4000k's ago when i did a major service.. gaps are standard as everything on the motor is 100% standard including airbox etc.
i used to get 250-300km's to half a tank easy. its not running rough all the time, only slightly missing at idle and when it does it has a rich fuel smell
sorry to be annoying but how do i test the o2 sensor? i have a multimeter and all, what pins do i connect to and what readings should i get? resistance or volts?
might try the afm clean though, ive never touched it.