What’s be­hind my ZX-12 mis­fire?

Motorcycle News (UK) - - Garage -

My 2002 Kawasaki ZX-12R is suf­fer­ing from a mis­fire. There is a sud­den de­crease/in­crease in power, as if a plug cuts out then comes back in. It does not sound like fuel star­va­tion and I have changed the plugs. John, In­gold­mells

An­swered by Cris­tian Ingig­noli, In Moto A faulty coil is cer­tainly a pos­si­bil­ity. I would also check that there is no wa­ter or con­tam­i­na­tion in the tank. Some­times, a lit­tle bit of wa­ter built up in the tank over time can get fed through and cause mo­men­tary hes­i­ta­tions in the bike. The in­jec­tors are un­likely to fail, but just to be sure I would check they are not clogged.

Check your fuel for wa­ter con­tam­i­na­tion

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