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cb750 rectifier

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ogre:
hi disconnected rectifier and connected a wire from my liesure battery to the red wire of the rectifier and connected my meter to the green [earth] wire of the rectifier and to the negative of the battery and getting 12v is this normal.yet when i test for infinity or continuity between the red and green wire with no power to rectifier no reading. 

Lobo:
Hi again.

Think we're talking crossed wires here (hah!).  Slightly confused, but until someone with proper quals / genuine Honda experience (= Steve / Brian / Oddjob etc) step in I would expect a zero V reading with a voltmeter in series & ignition OFF. If you're getting a 12v (or 10v) reading it really does suggest a 'leak' somewhere. Did you try disconnecting the ignition switch & redoing the test?

As for the rectifier test; no battery required. On your meter there is likely a diode setting... a triangle on its side with a line across its bottom icon. Connect the red & green wires to your meter ... one way open circuit, the other way (ie meter connections swapped) should give a reading of abouts 0.45 if I remember. This would indicate a healthy rectifier.

But honestly, you really need to use the ammeter setting to verify current drain, and troubleshoot the source as I suggested above.

ogre:
hi this is the meter i am using as you can see the ammeter part only reads ac i think so hae to go off the volts.did try it but no reading.with the positive connected to the battery on the bike though the red and white connects straight to the rectifier permanently. so the test i did with the leisure battery shows the 12v is coming from the green wire on the rectifier just dont know if it normal.   

ogre:
dont know why some of my last post letters are showing in red?

K2-K6:
Have a look at "how to measure amperage" on Wiki-How as there is a small vid to demonstrate on an 18v drill with dc supply that may help you.

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