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spark plugs

  1. No Throttle Response or Acceleration in Gear - Hesitation from Revving

    07-08 R1 Mechanical Help
    Hey R1 squad! I have a 2007 Yamaha R1. I've been experiencing the following issue: " No acceleration/throttle response after 2000 RPMs while in gear" I checked the forums however didn't get a clear answer. To rectify it, I tried troubleshooting doing the following: 1. Removed PC5 2. Cleaned...
  2. Sharp pain in the rear end...

    General Motorcycle Discussions
    So this is the conclusion to my day, the plugs I pulled out looked really good still. Obviously the threaded end is still in my motor, any good ideas how to remove it?