cb77 battery drain

YOUNGBLOODHAWKE · Post by **YOUNGBLOODHAWKE** » Mon Jul 09, 2012 8:16 pm

new harness
well new everything i guess
every nut bolt tire and spoke
third new battery in a month
drain down in 3 or so days
could it be the repop rectifier
and if so will the radioshack conversion be the fix
if not where should i look
thanks in advance guys

OldStan · Post by **OldStan** » Tue Jul 10, 2012 12:15 pm

Have you tried unplugging the rectifier and seeing if it drains down then? A quicker approach- if you have an ohmmeter- would be to check continutity to ground keeping in mind to use the negative probe on the ground. There shouldn't be any. You could also try removing the fuse and check for a ground on the ignition side.

Original selenium rectifiers are problematic, repops not so much, but that doesn't mean you couldn't have a bad one.

YOUNGBLOODHAWKE · Post by **YOUNGBLOODHAWKE** » Wed Jul 11, 2012 5:10 pm

thanks

YOUNGBLOODHAWKE · Post by **YOUNGBLOODHAWKE** » Thu Jul 12, 2012 8:24 am

OldStan wrote:Have you tried unplugging the rectifier and seeing if it drains down then? A quicker approach- if you have an ohmmeter- would be to check continutity to ground keeping in mind to use the negative probe on the ground. There shouldn't be any. You could also try removing the fuse and check for a ground on the ignition side.

Original selenium rectifiers are problematic, repops not so much, but that doesn't mean you couldn't have a bad one.

Disconnected rectifier and still draining
Removed ignition fuse ,same thing
Any thoughts on where it look now
See the points sparking some and touching the points plate
Will sometime shock me
Guess that can't be right

OldStan · Post by **OldStan** » Thu Jul 12, 2012 10:27 am

With the fuse out (or the key off) there should be no power to the points. You might try disconnecting everything from the battery, could have an internal drain. At least you could rule that out. Check out the wiring diagram;http://www.honda305.com/forums/download.php?id=4174
With the fuse out there are only a couple of wires that are hot. Or at least supposed to be. You said you have a new wiring harness, is it NOS or one that was made up? Could be wired wrong.

Points sparking is a whole different issue. Have you had it running? If there's a problem with the points it would probably be apparent something was wrong.

LOUD MOUSE · Post by **LOUD MOUSE** » Thu Jul 12, 2012 11:49 am

A shot in the dark.
There is a schematic out there which isn't correct.
Do you have both RED- RED with WHITE wires on CH?. ...........lm

YOUNGBLOODHAWKE wrote:new harness
well new everything i guess
every nut bolt tire and spoke
third new battery in a month
drain down in 3 or so days
could it be the repop rectifier
and if so will the radioshack conversion be the fix
if not where should i look
thanks in advance guys

rzgkane · Post by **rzgkane** » Thu Jul 12, 2012 5:18 pm

Delete.

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