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Snorty |
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Snorty World Chat Champion
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stinkwheel |
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stinkwheel Bovine Proctologist
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Snorty |
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Snorty World Chat Champion
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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colink98 |
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colink98 Could Be A Chat Bot
Joined: 27 Jun 2016 Karma :
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Posted: 09:48 - 30 Nov 2017 Post subject: |
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I recently follow the fault finding chart for dealing with charging systems.
https://www.electrosport.com/media/pdf/fault-finding-diagram.pdf
its really helpful and also you learn a bit about what's going on with the bikes charging system and to diagnose if there are any faults.
it might be the case that your battery is a bit pants or the charging system is a bit pants and this situation where the battery got fully deaded was sufficient to bring the whole thing down. ____________________ PCX125 (stolen) - CBF600 (current)
Ride it like you stole it.
ride sensible and not like an idiot and you wont get 6 points in one week. |
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Baffler186 |
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Baffler186 World Chat Champion
Joined: 31 May 2013 Karma :
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Posted: 09:53 - 30 Nov 2017 Post subject: |
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got a multi-meter? Check battery and reg/rec and you will be able to tell for sure. Could be that the battery was on it's way out anyway, and running full flat put the nail in the coffin.
Some bizarre coincidences might have occurred also, i.e. your reg/rec might have failed before you ran out of petrol, and buggered the battery, but you usually get some warning i.e. number plate light bulbs, indicator bulbs blowing in a very short space of time.
You can check your battery when charged (if it charges) with a multi-meter but for a real test you need to take it to a battery specialist. If it were me, I'd be getting a new battery and double checking the charging system before you fit it.
There's a good explanation here https://www.denniskirk.com/learn/how-to-diagnose-motorcycle ____________________ Current: 2009 SV650 S, 1990 Kawasaki GT550
Previous: 2009 CBF125, 1998 GSF600, 2004 FZ6 Fazer, 1978 CB400a Hondamatic |
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stinkwheel |
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stinkwheel Bovine Proctologist
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Kawasaki Jimbo |
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Kawasaki Jimbo World Chat Champion
Joined: 09 Oct 2015 Karma :
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Posted: 00:27 - 01 Dec 2017 Post subject: |
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Could running a bike with a duff battery kill the reg/rec? I believe so.
When a weak battery hungrily draws from a reg/rec like a flat battery draws from an Optimate it goes beyond the normal operating parameters of the reg/rec. Unfortunately electronics is like black magic to me so I can't be sure. The "How does a diode fail?" section near the bottom of this link might have the answer. PIV is peak inverse voltage which, when exceeded, allows reverse flow apparently. |
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sickpup |
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sickpup Old Timer
Joined: 21 Apr 2004 Karma :
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Chris45 |
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Chris45 Nitrous Nuisance
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stinkwheel |
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stinkwheel Bovine Proctologist
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andy_uk |
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andy_uk World Chat Champion
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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smegballs |
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smegballs World Chat Champion
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 10:35 - 02 Dec 2017 Post subject: |
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Nobby the Bastard wrote: |
So, you think that the people making alternators or reg/recs for bikes are having the transistors and ICs made specially when millions are made for cars and also use about 12v? They have virtually identical parts in. Why make what you can buy off the shelf from ford?
Mental... |
I don't THINK they're different. I KNOW they're different. They are about as far from identical as you can get for two things that do roughly the same job.
Car and motorcycle alternators are totally different systems. As I'm sure has been discussed, car alternators generally use a field-coil alternator. The voltage is regulated by switching the supply to the field coils on and off. When voltage gets too high, they cut the power to the field coils which stops it generating power. They don't dump excess like a bike one does.
I'd imagine some of them will still be electro-mechanical. They have a set of points in there which open and close to energise and de-energise the field coils. If they aren't, it's essentially a transistorised version of the same idea. They get a tad more complex than the example below because modern ones have an element of current regulation but this is your basic, mark 1 voltage regulator for a car.
https://www.secondchancegarage.com/articles/images/regulator/photo1.gif
Some bikes do use this type but they are the exception. I know for a fact Moto Guzzi, some Ducatis, Jawas and a few Japanese oddities do.
Yes, mental. The car system is much more effective and efficient and produces much more power. They only produce power according to the load on them. The downsides are that there are wearable parts in a field coil alternator and the rotor tends to be a bit bulkier. There may be issues with running one wet too. I can't recall ever seeing a wet field coil alternator. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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Snorty |
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Snorty World Chat Champion
Joined: 13 Oct 2010 Karma :
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Posted: 12:56 - 21 Dec 2017 Post subject: |
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Turned out to be a melted connector.
Put a new connector on and all is well ____________________ Current: Yamaha FZ1 '07 | GSXR 750 SRAD
Past: CB125TDC | TZR125 | GPZ500 | CBR600F3 | ZX9-R | GSXR1000 K4 |
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Old Thread Alert!
The last post was made 6 years, 128 days ago. Instead of replying here, would creating a new thread be more useful? |
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