Has anyone seen or used the dealer installed Tach for a BS90

[dwb1013]

I have a BS 90 standard in very very good orginal condition....i see on ebay there is a dealer option Tach that is supposed to work for BS90's.  I want to know if anyone has used these.....do they work decent.....and how did you mount it so that it doesn't imped the sight line of the speedo....   I am thinking about buying it but not sure if it will fit or work wel.....let me know

[Jeff McBrayer]

Do not believe anything that ebay seller call swapmeetguy says: He know nothing about stones, he is just making trips to CPS and posting stuff on ebay, which is fine, except he knows nothing.  That tach will not fit the small bars on a 90, it also will not work on a 100 racer as the racer does not have generation coils, it you still want the tach just call CPC and order one for less money, they are also 12v and the 90 is 6v, sorrybe be so blunt, but I had a bad deal with him

Jeff McBrayer