Put my new filter in with my No-toil oil on it, bike run a lot better than when the filter had the K&N oil on it. The bike is still cut out now and again at low revs and when it does its hard to start, and sometimes it back fires when kicking over too, it doesnt happen as often as when i had the K&N oil on it but its still a nuisance. Could the spark plug be knackered now after running it with the ****ty oily filter?? im open to ideas as i havnt had chance to start looking at it???

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