it is speed limiter indicator. mine does the same thing a bout 2000rpm so i slow down. was hoping for an answer. just got home i drive it daily and it does it some times an not others especially when it is warm or it has warmed up. mineleaks and burns a little oil. i drove it on a 100 mile trip no problems a couple of weeks ago. will have it torn down and rebuilt but hope not this year. best of luck to you. ron
