Johnson 30 HP Charging Coil Questions

Johnnielund

Petty Officer 3rd Class
Joined
Nov 14, 2002
Messages
91
My motor is a 1990 30 hp Johnson, rope start, long shaft.<br /><br /> I have just purchased the charging kit (p/n 175271). My main purpose for installing this kit is to be able to hook up a tach. <br /> I have two questions.<br />1. Since I am primarily concerned with a signal for the tach, is it necessary to install the rectifier and battery charging cables? If not, how will the tach be wired? There are three wires coming from the charging coil, (yellow, yellow gray, and yellow blue).<br />2. The instructions refer to a locating ring (p/n 334994) to properly position the charging coil in relationship to the inside diameter of the flywheel. Would anyone know the inside diameter of this locating ring? <br /> As always, thanks to everyone of you for your help.
 
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