Hi All, Can anyone help with the wiring of a Shindengen reg/rect unit, type SH532-12 2.2. It was fitted to a Cub a while ago, but was disconnected. There are three yellow wires, one red wire which goes to a ballast resistor (to coil??), one green and one black wire, which have been joined together. I guess one of the wires must go to earth (ground), hopefully someone will have knowledge of Jap electrics to help me with this. Thanks.
Yea, the good one - I used to have 3.7 version on my Suzuki GS 1150 EFE. Way better than original Suzuki. Red wire takes power to ignition switch, a green one is a ground, the thin black should be connected to another "hot" wire ( lights or horn ). this wire actually sets your charging on the 14.5 V level, when it`s disconnected you can get 20 V and more. Three yellow wires connect your alternator to the regulator rectifier, but it has to be 3 faze alternator.
Thanks very much for that info. It was definately working previously, wired up to a Lucas alternator, not a 3 phase one, but not by me. Should I just connect to two of the three yellow wires and hope for the best or join two of the yellows together?? Is the ballast resistor really necessary....
Just a thought based on the above feedback - aren't all RM alternators three phase output, so I should just connect the three output wires to the three yellow wires. If I had an alternator with two output wires, I would just join two of the yellow wires together. Should work???
If I understand this correctly, the 3 yellow wires are for AC input from the alternator (standard Jap color code for AC). If you have the 1-phase Lucas alternator you'll connect to ANY 2 of the yellow wires to your alternator and leave the third yellow wire unconnected and insulated from all other wires.
It sounds as if the unit is capable of positive or negative ground, depending on what you do with the red and black, but that's pure conjecture on my part.