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battery ground

Could be anything, fiddler and, as useful as a manual is for lots of other things, it won't help you much on this one.

From the factory, they were all 6v positive ground. But many have been altered to 12v, which is customarily but not always negative ground.

How many caps on your battery. Three would be a 6v, six caps would be 12v. Alternator (negative ground) or generator (could be either.)

If you have a battery ignition with an external coil as opposed to a magneto, look at the two terminals for the small wires on the coil. One will be marked "+" and the other "-" The marking on the one with the wire that runs to the distributor will indicate your ground in that case.
 
A lot depends in the charging system it has on it. When new it was in fact + ground but that can be changed over the many years it has been around. If it has a genny it will most likely be + ground, but if it has an alternator it will be - ground. On a genny system most of the time they will work either way but on an alternator system they will not and if hooked up wrong will smoke the alternator the moment you hook up the battery BTDT and learned the hard way
 
today i started my 46 a for the first time in 5 yrs. put in the batt and the cables were not fitting right. one clamp to big and the outher to small so i hooked it up anyway. big mistake it was pos ground and the regulator went smoke joe on me. well changed to pos ground and all was well. it cranked over about 2 times and away it went running like a kitten. well that is till the mouse nest in the flywheel flew up in to the starter. well after power washing it all out it works fine agane. in the long run it is pos groung well atlest when it new. hope this helps. thanks Bob
 
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