I am in into the second year of racing with a Lifan 150cc 4 up in my extreme...

netboard

I am in into the second year of racing with a Lifan 150cc 4 up in my extreme Honda Trail 90. Today I put the 16 tooth front sprocket on and tried to do some speed runs On a bumpy lake bed. I got it up to 50 mph but it Started acting up and jammed when tried to shift into third. It works OK in first and second. The ideas what might be going on in there?

%d comments
  • Remove the rubber plug that covers the shift drum bolt...check to make sure the shift barrel bolt is snug and not loose

  • Left side of motor