Massey Ferguson tea20

Nathan green

New User
Hey guys, Ive got a massey Ferguson tea 20 that is converted to a 12 volt with altenator and I think Ive got it wired up properly but my voltage is jumping all over the place and wont stay steady. Do you have any suggestions or wiring diagrams for me ? Thanks
 
Use a dnd digital analog (needle) type volt meter. The noisy voltage in old tractors and cars causes grief with the sampling system in a modest or cheaper digital volt meter. Digital meters capable of averaging voltage to a mean single number cost 150 or so. Jim
 

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