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V7 850 GT not charging

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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2019 at 17:37
Have you cleaned/brightened all the terminals/connectors? Battery terminals and battery earth to frame?
The next step would be to check the dynamos' none regulated output.If that is OK then I would think the regulator may be to blame.An auto electrician can test and if required adjust it for you.You would have to take it off the bike.You could also take the dynamo in for testing.


Edited by Dave P. - 15 Feb 2019 at 17:41
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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el__burro View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote el__burro Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2019 at 18:41
Originally posted by Dave P. Dave P. wrote:

Have you cleaned/brightened all the terminals/connectors? Battery terminals and battery earth to frame?
The next step would be to check the dynamos' none regulated output.If that is OK then I would think the regulator may be to blame.An auto electrician can test and if required adjust it for you.You would have to take it off the bike.You could also take the dynamo in for testing.
Yes, all terminals cleaned.
How would i rate the Dynamo output?
thanks
el__burro
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2019 at 21:44
Mind you 13.5V is not that bad. Are you sure that isn't what it's supposed to be?


"Chicken nuggets don't dance on a Tuesday."
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 22 hours 32 minutes ago at 08:02
According to the book Mike, 13.8V to 14.5V.
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 18 hours 53 minutes ago at 11:41
To test the dynamo do the following;

Disconnect all three leads from the dynamo.

Connect the D+ and F terminals together with another piece of wire.

Connect the positive lead of your voltmeter to D+ and the negative lead to a good earth on the bike.

Start the engine and briefly run it at around 1000 RPM.

A good dynamo should give a minimum reading of 14V.

If you rev' it harder the reading will increase,but don't do it or you could risk damaging the dynamo.

I must emphasize that running the dynamo without the regulator must be done BRIEFLY.

Edited by Dave P. - 18 hours 50 minutes ago at 11:44
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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