How was the jet ratio determined, as it's HIGHLY UNLIKELY that it should be 1:1 on gravity fed fuel? Please send me the answer by email (
trev@noswizard.com), so I can deal with it as quickly as possible
DON'T use the nitrous again until I give you the go ahead.
There shouldn't be any reason for one grade harder plugs to make the engine run rough NA but if you can't figure out why it is on your bike, the answer is to CUT BACK the ground electrode until the end JUST overlaps the nearest edge of the centre electrode.