my motor cycle suzuki gsx 550 when trying to start or on tick over misfires but when the throttle is opened up it clears then when back to tick over it misfires again what can i do to solve this please

andrew glasgow, April 2008

Try another set of plugs first - when you take the old ones out check that they are the same colour - if one is oily or black then thats the faulty cylinder. You may need a compression test done if you find this,but its also possible that the carburettors simply need balancing or cleaning.

John, April 2008