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kawasakizx12misfireQ: My 2001 Kawasaki ZX-12 (with 72,000km on the clock) has a very annoying misfire and I just cannot seem to find the problem so I'm hoping you can help? I've cleaned and gone through everything I can think of but after hours of swearing in the garage the problem is still there.

If you could shed any light on where to look next I would be eternally grateful.


A: If you haven't changed your spark plugs, and I doubt you have one in particular, it will certainly be that. You see number four plug is just about impossible to get to without dropping the motor forward or making some kind of spanner to get under that 'up and over' box frame.

Most shops when servicing tend to change just three plugs and ignore that troublesome fourth because of the time consuming and frustrating work involved to get to it.

So I'd check that first and it might just be quicker to remove bolts and tilt the engine forward, as suggested in the manual!










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