Demagnetised rotor help

Information relating to the Matchless G2 or AJS Model 14 250cc Lightweight
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poweller996
Posts: 27
Joined: Sun Aug 20, 2017 8:25 pm
Location: GLOUCESTERSHIRE UK

Demagnetised rotor help

Post by poweller996 »

Hi,
I have found that direct out my altenater I'm only getting 5.7volts and according to the workshop manual it should be around 6.2-6.8 volts, the manual then goes on to say that the cause of low voltage direct from the altenater is due to a demagnetised rotor and to send the rotor back to wipac for remagnetisation.!
Does anyone know where or how I can get the rotor remagnetise.
Many thanks mat.
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Rob Harknett
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Joined: Mon Jan 01, 1990 12:00 am
Location: ESSEX UK

Re: Demagnetised rotor help

Post by Rob Harknett »

I had the same problem with my lucas on a 650 CSR. I got a new one over the counter from club spares.. Quicker and did not cost much more, by saving two lots of postage, to get the old reconed.
poweller996
Posts: 27
Joined: Sun Aug 20, 2017 8:25 pm
Location: GLOUCESTERSHIRE UK

Re: Demagnetised rotor help

Post by poweller996 »

Many thanks rob I will try them in the morning.
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ajscomboman
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Posts: 3963
Joined: Mon Jan 01, 1990 12:00 am
Location: HAMPSHIRE UK

Re: Demagnetised rotor help

Post by ajscomboman »

You won't get one from the club for a lightweight as it's a Wipac unit. Not sure if anyone sells replacements for these.
Steve S
Posts: 123
Joined: Fri Sep 30, 2016 12:03 pm
Location: Hertfordshire United Kingdom

Re: Demagnetised rotor help

Post by Steve S »

There's one on Ebay at the moment along with other parts,

http://www.ebay.co.uk/itm/Matchless-G2- ... 1438.l2649

Steve S.
bitza
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Posts: 452
Joined: Tue May 27, 2003 1:00 am
Location: SHROPSHIRE UK

Re: Demagnetised rotor help

Post by bitza »

Theres a firm up in netherton west mids who re mag villiers fly wheels I think they can do most makes look on web
poweller996
Posts: 27
Joined: Sun Aug 20, 2017 8:25 pm
Location: GLOUCESTERSHIRE UK

Re: Demagnetised rotor help

Post by poweller996 »

Hi, will a lucas rotor fit a wipac system as I have a faulty wipac rotor but can only get hold of a Lucas rotor
Many thanks mat
bitza
Member
Posts: 452
Joined: Tue May 27, 2003 1:00 am
Location: SHROPSHIRE UK

Re: Demagnetised rotor help

Post by bitza »

Re. Previous post, any one needing fly wheel re- magnetising, saw this ad in old bike mart mag.
Villiers Services 3 Merry Hill, Quarry Bank, Brierly Hill, West Miidlands. D Y 5 1 S D. Phone 01384 265797
Any bike / British/ jap/ Italian , any size flywheel. Ad says same day turnaround
Cost £15 - 00 plus vat. They also do rotors.

Email http://www.villiersservices.co.uk
Hope you find this helps.
Last edited by bitza on Fri Sep 29, 2017 7:28 pm, edited 2 times in total.
poweller996
Posts: 27
Joined: Sun Aug 20, 2017 8:25 pm
Location: GLOUCESTERSHIRE UK

Re: Demagnetised rotor help

Post by poweller996 »

Many thanks for the number I will give them a ring tomorrow.
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