Please help? My Cbr 1000 is driving me nuts. At high revs the bike just statters like pa papapa pa pa. Not a backfiring. There is proper spark on all cylinders Cylinders compresion are fine. chims was replaced . Petrol pump seviced. Fuel injectors done. Cant get rid of the stuttering

Additional (from comments): Happening between 5000-8000 RPM.

  • Welcome to Motor Vehicle Maintenance & Repair. What kind of RPMs are we talking about? – kyle_engineer Jun 4 '18 at 20:00
  • Between 5 and 8000revs – Theo Jun 7 '18 at 4:42

Assuming the air filter and airbox is clear, the ignition timming is correct and there are no vacuum leaks. Then it might be an idea to start testing/replacing things like plugs, leads and coil packs, as these are components that are susceptible to breakdown at high rpm.

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