Rz350 overcharging

[2 Stroke Jamoke]

I'm getting 15v at idle that shoots up to 20v when I rev it. I have tried 3 different reg/rec with no change. I have tried jumping straight t from battery to signal wire on the reg/rec to take the switch (possible resistance) out of the circuit with no change. Other than this issue the bike runs flawlessly. Wiring gurus please chime in. I am willing to buy another reg/rec but the ones I have all pass the diode test so I think they are good.

[Barrie]

check the earthing of the regulator

[2 Stroke Jamoke]

Well I added a jumper a while back that grounds the frame harness and engine so I don't think it's a ground problem. I will check it out tho. The reading bounces around when I rev it, 14v 18v 20v 14v it threes like that. I wonder if I have a stator issue. It ohms out fine and I get over 50vac from the stator leads. I'm stumped

[pidjones]

check the earthing of the regulator

And the engine and the battery - make sure they all go to the same earthing point.

[1976RD400C]

Cheap digital meters go crazy trying to read voltages around motorcycles. Are the lights getting real bright when you rev it. 

[2 Stroke Jamoke]

The light gets brighter when u rev it but not overly so. Everything appears to be working fine. Now when I put an analog meter on it it reads at 13v or so at idle but goes to just under 15v when I rev it. So according to the analog sweep style meter it's good. But I did just have to replace a battery that stopped working. Acted like it was dead and would not take a charge.