Robert I don't understand why you are wasting so much time trying to make the wrong rectifier regulator work .
Why on earth don't you just buy a cheap used XS650 78 rectifier & regulator and plug them in and test your charging system and wiring loom .??
650 skull has valiantly spent a huge amount of time and effort trying to diagnose this and supply you with relevant information but in the end it all boils down to whether or not you understand vehicle electrics.
I know I repeat myself often on this subject but it is not a question of 'do I connect this colour wire to this colour wire '
The approach should always be .....Connect the correct wire to the correct wire/s according to function
Once you have established how a rotor, stator, regulator and rectifier actually function and where their wires connect internally then you will be able to connect components up correctly.
the seller clearly doesn't know that the charging system for xs650 models 72-79 is different from the 80-84 models the combined reg/rect that is shown in the picture grounds the alternator internally whereas the 72-79 models which have seperate rectifiers and regulators have the rotor permanently grounded . The wiring for the two chargig systems are not compatable with one another
If you don't know how the aftermarket reg/rect is wired internally and the seller doesn't know either then the only choice you have is to use a multimeter to establish what is what or just keep connecting wires at random until the fuse doesn't blow anymore which is a crazy way to do things .
There must be dozens on here that would gladly send you a spare 78 xs650 reg/rect to test on your bike or see if you can find one at a local bike breaker .
Why on earth don't you just buy a cheap used XS650 78 rectifier & regulator and plug them in and test your charging system and wiring loom .??
650 skull has valiantly spent a huge amount of time and effort trying to diagnose this and supply you with relevant information but in the end it all boils down to whether or not you understand vehicle electrics.
I know I repeat myself often on this subject but it is not a question of 'do I connect this colour wire to this colour wire '
The approach should always be .....Connect the correct wire to the correct wire/s according to function
Once you have established how a rotor, stator, regulator and rectifier actually function and where their wires connect internally then you will be able to connect components up correctly.
the seller clearly doesn't know that the charging system for xs650 models 72-79 is different from the 80-84 models the combined reg/rect that is shown in the picture grounds the alternator internally whereas the 72-79 models which have seperate rectifiers and regulators have the rotor permanently grounded . The wiring for the two chargig systems are not compatable with one another
If you don't know how the aftermarket reg/rect is wired internally and the seller doesn't know either then the only choice you have is to use a multimeter to establish what is what or just keep connecting wires at random until the fuse doesn't blow anymore which is a crazy way to do things .
There must be dozens on here that would gladly send you a spare 78 xs650 reg/rect to test on your bike or see if you can find one at a local bike breaker .
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