[jvt]

i own a new 855D and 17mph should read 30mph. trip meter is also off .I'm not sure about the other functions.
can it be adjusted or poor ground? speed sensor??
I have 30 hr on it . it is on MPh.
jim

 

[jvt]

I fixed it. The speedo has a setting for differnt wheel/tire size. I have 27" and it got set to 14"
The workshop manual is comming in handy.