Fluctuate voltage

[Tetanos]

When i put the ohmeter on it .. Doesnt keep stady to 13.4v or other.. It fluctuate to …7.2 then 13.4v then 2v then 13.5v etc…. And is not the electromotor… I change it with other and i olso start without it .. And it is the same…. Someone know if there are any other tension regulator ? Or other part? Because i think i doesnt run smooth because of this
Thx
Ps. Sorry my english

[Chris S]

Have you looked at the earth connection on the motor block?

[Tetanos]

I ve chage and rebuilt and put a lot of grounds to motor and body…. I dont think is from grounds … Like i said i ve recently rebuilt all the grounds… Matbe i missed something? Other then grounds , any other ideeas?
Thx

[Author]

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