Thinking of taking my 99 kdx on a trip where it may be 30 miles of road before it hits trails. does everybody trust their jetting and bike at 60 MPH for an extended period of time?
It will be all stock at that point with stock jetting.
Read some other posts, but should be ok. Vary the engine speed and do not cut off short from high speed ie keep it lubricated with the fuel. Cheers John