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rob asked in Cars & TransportationMotorcycles · 1 decade ago

whats wrong with my bike?

honda nsr 125 jc20 1990 model wont rev past 4k engine has no torque, spark plug is a little oily but no more than any other i ave seen still give a good spark, lots of old oil in the exhaust there is light blue smoke when carb is fully opened, oil pump is functioning properly

1 Answer

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  • 1 decade ago
    Favorite Answer

    It could be that your muffler is plugged up,.

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