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General Category => Maintenance => Topic started by: fjman on March 12, 2011, 12:29:51 AM

Title: How to check charging?
Post by: fjman on March 12, 2011, 12:29:51 AM
I'm not really much of an electrician. How do I check the charging system of a bike with a voltmeter?  :wacko1:
Title: Re: How to check charging?
Post by: oldktmdude on March 12, 2011, 02:14:12 AM
  Connect positive lead of the meter to positive battery terminal, connect negative lead to earth or negative battery terminal, set meter to read 20 volts DC. Take a reading of the meter with the engine not running. Should read around 12.5 volts. Start engine and take another reading. This should read higher than the first reading, around 13 to 13.5 volts at idle. Increase revs and reading should rise to around 14 to 14.8 volts. Regards, Pete.
Title: Re: How to check charging?
Post by: fjman on March 13, 2011, 01:45:06 AM
thanks for the reply i'll look into it  :dance:
Title: Re: How to check charging?
Post by: fj1250 on April 03, 2011, 10:36:21 PM
Do the lights get brighter when you rev the engine above, idle?
then it's charging!

MC
Title: Re: How to check charging?
Post by: fjman on April 07, 2011, 02:13:09 AM
no they dont get brighter
Title: Re: How to check charging?
Post by: TheRadBaron on April 07, 2011, 08:53:17 PM
If the lights don't get brighter when the engine is revved, that points to the charging system not charging.  A voltmeter would still be a better way to verify, though. 
Title: Re: How to check charging?
Post by: rktmanfj on April 07, 2011, 09:12:11 PM
Quote from: TheRadBaron on April 07, 2011, 08:53:17 PM
If the lights don't get brighter when the engine is revved, that points to the charging system not charging.  A voltmeter would still be a better way to verify, though. 

Perhaps to troubleshoot why it's not charging, otherwise, what's the point?      :unknown:

If it's not charging, it's not charging.

Randy T
Indy
Title: Re: How to check charging?
Post by: srutherford on July 08, 2011, 06:12:36 PM
Spo my bikes lights are supposed to get brighter as elms increase? I thought I had a problem shwew