Charging system issues

[BorisTheThird]

[quote author=CRH link=topic=10406.msg108857#msg108857 date=1382539641]
ime no electrical wizard but ive always been under the impression that you should never disconnect a battery whilst engine running can do all sorts of damage?...all you got to do is leave in situ and connect a meter across the batt terminals and see what it reads both on idle then when its reved to 3 t 4thou it should be approx 14.2 + at about 4thou...little less with lights etc loaded up!!...unfazed or fazerider will give you the correct figures

Yep a very bad idea disconnecting battery while engine running,if you have an alternator.
Whilst you may well get away with it at tickover (if you're lucky), there's a good chance of blowing the regulator as you've excess power with nowhere to go without a battery to soak it up.... & if your regulator goes( without a battery as well!) you're in with a really good chance of screwing up something expensive as the charging voltage skyrockets.

Please keep the battery connected 

Carefully Check ALL charging circuit connectors are clean & not loose before you go any further.... will save unecessary expense in replacing good parts, don't ask how i know that  :o
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but surely without the battery there is no circuit, so current cannot flow