Does anyone out there know if any of these tachs will work with a '71 Johnson 125ESL71C, serial# J3516179 90degree V-type, 4 cyl 2 cycle engine.<br />4GD AIRGUIDE TACHOMETER<br />664 AIRGUIDE TACHOMETER<br />Airguide Series 10 Marine Tach M 1039 / 1029 <br />If these do not, does anyone know which vintage airguide tachs will work with this engine?<br />Thanks
