Correct Tachometer makings

[captual]

I'm overhauling my Tachometer and putting in a new drive cable. It seems a red line is required ? I have a C-85-12. Other than a small mark at 1,700 for mag check, what RPM might/is required for red line?

Thanks in advance.
Steve

 

[cubdriver2]

 

[captual]

 

[huston marlowe]

 

[captual]

 

[huston marlowe]

 

[huston marlowe]

 

[captual]

 

[Renkou1]

 

[huston marlowe]