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    Engine Jerking at about 5000-6000rpm

    Hello all, I don't know why, my engine is jerking at about 5000 to 6000rpm moreover, it has a hesitation when step on the pedal from stop or from a braking to stop before. I haven't encountered this problem before. I am using Denso IR20 spark plug. K&N air filter for original air box. S-type...
  2. D

    Engine Jerking at over 5000-5500rpm

    Hello all, I don't know why, my engine is jerking at about 5000 to 6000rpm moreover, it has a hesitation when step on the pedal from stop or from a braking to stop before. I haven't encountered this problem before. I am using Denso IR20 spark plug. K&N air filter for original air box. S-type...
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