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I have a problem with my FZR600 1990. Cylinder 2 isn't working. I have cleaned carburetors, changed spark plugs, changed ignition coil and spark plug wires. I have checked that spark plug makes spark and cylinders compression pressures (130psi). I have tried to put gasoline from spark plug hole and then start but it ain't helping. But sometimes bike runs with every cylinder, but when u start bike again cylinder 2 isn't working anymore.
Any ideas what is wrong with my bike?

You may have cleaned the carbs but something commonly overlooked is the float itself. It controls the amount of fuel in the bowl. Sunken float, no fuel equal no boom. If you know you have spark, and compression, the other 3 cylinders work, youre missing fuel. Rather than pouring it through the spark plug hole, pour a VERY SMALL amount down the throat of the carb if anywhere.

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