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2000 cb500s not charging

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Mike246
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Newbie

Posts : 3

2000 cb500s not charging

Post by Mike246 on Mon 29 Aug 2016, 9:35 pm

Hi there my 2000 cb500 is not charging I fitted a new battery but it went flat over a few days of non use of it is the alternator is it to replace ?? I have a had look for a replacement is it the bolts around the cover to take off and replace with the new part
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wornsprokets
the 900
the 900

Posts : 1163
Location : dublin

Re: 2000 cb500s not charging

Post by wornsprokets on Mon 29 Aug 2016, 10:01 pm

Check your regulator rectifier first( there troublesome on all 90s hondas)
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Mike246
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Re: 2000 cb500s not charging

Post by Mike246 on Mon 29 Aug 2016, 10:28 pm

Ok thanks for the reply how do you check the rectifer
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wornsprokets
the 900
the 900

Posts : 1163
Location : dublin

Re: 2000 cb500s not charging

Post by wornsprokets on Mon 29 Aug 2016, 10:41 pm

Have look on you tube "honda regulator rectifier" u will need a multimeter also to test it
Have look on forum also about regulator rectifier in previous posts
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Jameshambleton
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Posts : 1720
Location : Bedale, North Yorkshire

Re: 2000 cb500s not charging

Post by Jameshambleton on Mon 29 Aug 2016, 10:43 pm

I used a diode tester on a multimeter and checked all the values were similar. 
Here is the page from the haynes manual for you https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/14142012_636521079855508_749566790434042210_n.jpg?oh=edee04f5b47ef8e3582428893e292827&oe=58506BE9
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eternally_troubled
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Posts : 3639
Location : 'ere be fens. (near Cambridge)

Re: 2000 cb500s not charging

Post by eternally_troubled on Fri 02 Sep 2016, 6:31 pm

Get multimeter and do a charging test - essentially you measure the battery voltage, with the headlight on, while revving the bike to 5000 rpm - if the voltage is somewhere around 14.5 volts (say, between 4 and 15) the regulator rectifier is fine.

If you need any more detailed information then either read the Haynes or post another questions here.

BallisticBrian
Godly
Godly

Posts : 66

Re: 2000 cb500s not charging

Post by BallisticBrian on Fri 23 Sep 2016, 9:55 am

Thank you guys for this thread. I tested the rectifier following the Haynes instructions and the very last pins of the last test failed, that is the continuity from pin "E". Yet another thing to go all at the same time on this bike!

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