I have an '83 std Venture.
When it's mid-30ish degrees or below, the tach is very sluggish and won't read above 3K rpm's. This concerns me because I currently commute an hour each way to work in mid to low 20 degrees.
I found one other thread about this, but didn't see any conclusive fix.
Is the tach mechanical, drive via cable from the drive train, or electronic, driven from the computer board in the dash?
Does anyone have a good fix?
Thank you!!
Doug