A A A
Avatar

Please consider registering
Guest

Search

— Forum Scope —






— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

Register Lost password?
sp_Feed sp_PrintTopic sp_TopicIcon
Geni mag overhaul
Avatar
lbayorkie
North Yorkshire
Top Gear User
Club Member
Forum Posts: 532
Member Since:
December 6, 2016
sp_UserOfflineSmall Offline
1
August 25, 2020 - 9:32 am
sp_Permalink sp_Print

Hi, does anyone know where I can get my geni-mag stator plate overhauled please? I spoke to Villiers Services but they can only do the flywheel re magnetization.

Thanks

Alan

Avatar
Stoo63
GLASGOW
Area Rep
Forum Posts: 1020
Member Since:
April 19, 2018
sp_UserOfflineSmall Offline
2
August 25, 2020 - 10:28 am
sp_Permalink sp_Print

I'm sure a few users would be interested to know what sort of price they were asking for a remagnetize?

 '55 D3 Battery; '58 Square Four (project); '59 D1 direct lighting plunger; '59 Tiger Cub; '60 5TA;  '76 FS1-E; '91 GTR 1000;  '97 Honda Sky SGX50.

Avatar
sunny
Norfolk
Top Gear User
Club Member
Forum Posts: 1657
Member Since:
January 9, 2013
sp_UserOfflineSmall Offline
3
August 25, 2020 - 11:19 am
sp_Permalink sp_Print

hi   Alan  yes  i can     please  tell  me  wot  you  think  the problam  with it   first   

Avatar
lbayorkie
North Yorkshire
Top Gear User
Club Member
Forum Posts: 532
Member Since:
December 6, 2016
sp_UserOfflineSmall Offline
4
August 25, 2020 - 1:42 pm
sp_Permalink sp_Print

Re magnetisation is £15 plus they charge about £5 to return the flywheel. 

I have a weak spark and there look to be some pretty dodgy electrical connections so hoped I could get stator and flywheel done at same time. There was an old post I noticed that said Villiers Services did complete geni mag overhauls for about £90, but they say they don't do them.

Avatar
Stoo63
GLASGOW
Area Rep
Forum Posts: 1020
Member Since:
April 19, 2018
sp_UserOfflineSmall Offline
5
August 25, 2020 - 1:45 pm
sp_Permalink sp_Print

20quid sounds pretty reasonable. It's a common query, so maybe there'll be a deluge of old flywheels on Villiers doorstep...

 '55 D3 Battery; '58 Square Four (project); '59 D1 direct lighting plunger; '59 Tiger Cub; '60 5TA;  '76 FS1-E; '91 GTR 1000;  '97 Honda Sky SGX50.

Avatar
Digby
Leeds West Yorkshire
Top Gear User
Club Member
Forum Posts: 447
Member Since:
July 11, 2014
sp_UserOfflineSmall Offline
6
August 26, 2020 - 5:57 pm
sp_Permalink sp_Print

lbayorkie said
Hi, does anyone know where I can get my geni-mag stator plate overhauled please? I spoke to Villiers Services but they can only do the flywheel re magnetization.

Thanks

Alan  

Hi Alan,

George at Villiers Parts not Villiers services will re-con your genimag stator for £85 no vat,Google his website he won't give out his phone number but answers emails promptly,his turnaround time is 2-4 days how do I know? he's just done mine!

Cheers

'68 D14 Sport,'65 Honda CB160 Sport,'49 D1 Rigid  ).'62 Honda 50 Sports Cub.'50 D1 plunger.

Avatar
lbayorkie
North Yorkshire
Top Gear User
Club Member
Forum Posts: 532
Member Since:
December 6, 2016
sp_UserOfflineSmall Offline
7
August 26, 2020 - 7:39 pm
sp_Permalink sp_Print

Thanks. So you sent the stator and rotor to Villier Parts? Also their branding is very similar but are Villiers Parts and Villiers Services related in business?

Avatar
Digby
Leeds West Yorkshire
Top Gear User
Club Member
Forum Posts: 447
Member Since:
July 11, 2014
sp_UserOfflineSmall Offline
8
August 26, 2020 - 8:35 pm
sp_Permalink sp_Print

lbayorkie said
Thanks. So you sent the stator and rotor to Villier Parts? Also their branding is very similar but are Villiers Parts and Villiers Services related in business?  

The stator went to George @villiersparts,the flywheel went to Villiers services for re-mag,got the flywheel back today so tomorrow is testing day.

The two businesses are not related as far as I know.

'68 D14 Sport,'65 Honda CB160 Sport,'49 D1 Rigid  ).'62 Honda 50 Sports Cub.'50 D1 plunger.

Avatar
Digby
Leeds West Yorkshire
Top Gear User
Club Member
Forum Posts: 447
Member Since:
July 11, 2014
sp_UserOfflineSmall Offline
9
August 26, 2020 - 8:38 pm
sp_Permalink sp_Print

Stoo63 said
I'm sure a few users would be interested to know what sort of price they were asking for a remagnetize?  

Stoo63 said
I'm sure a few users would be interested to know what sort of price they were asking for a remagnetize?  

Current price is £15+vat+P&P got mine back today

'68 D14 Sport,'65 Honda CB160 Sport,'49 D1 Rigid  ).'62 Honda 50 Sports Cub.'50 D1 plunger.

Avatar
Stoo63
GLASGOW
Area Rep
Forum Posts: 1020
Member Since:
April 19, 2018
sp_UserOfflineSmall Offline
10
August 26, 2020 - 10:03 pm
sp_Permalink sp_Print

That's great Roy, thanks. So about £30 all-in?

Stewart

 '55 D3 Battery; '58 Square Four (project); '59 D1 direct lighting plunger; '59 Tiger Cub; '60 5TA;  '76 FS1-E; '91 GTR 1000;  '97 Honda Sky SGX50.

Avatar
Digby
Leeds West Yorkshire
Top Gear User
Club Member
Forum Posts: 447
Member Since:
July 11, 2014
sp_UserOfflineSmall Offline
11
August 27, 2020 - 4:55 pm
sp_Permalink sp_Print

Stoo63 said
That's great Roy, thanks. So about £30 all-in?

Stewart  

Hi Stewart,I fitted the flywheel today,the difference was incredible!from not having enough output to spark at the plug it now provides the biggest spark I've ever seen on a Bantam needless to say it started 2nd kick and runs great,best £30 I've ever spent.

Ive heard arguments in the past about magnets never losing their magnetism,well I can confirm that they do but remembering that this one is 71 yrs old.Im now wondering if the flywheels are causing some of the electrical problems that we experience on some of the later bikes,food for thought🤔

Cheers Roy

'68 D14 Sport,'65 Honda CB160 Sport,'49 D1 Rigid  ).'62 Honda 50 Sports Cub.'50 D1 plunger.

Avatar
sunny
Norfolk
Top Gear User
Club Member
Forum Posts: 1657
Member Since:
January 9, 2013
sp_UserOfflineSmall Offline
12
August 27, 2020 - 5:19 pm
sp_Permalink sp_Print

the  magnet  roter   under  normal   use  or   dismatal  of  the    engine   dos not  loses  any    magnatizum    power       its  the  missuse  or

 keeped in  the  rong  place starts   the   magnets  ageing   proses    the  LUCUS   units    &  Hornsbe   train  set   moters    do        not   many   bother  to  say ,.,.    iv  thron   lots  coz of  damage

Avatar
Digby
Leeds West Yorkshire
Top Gear User
Club Member
Forum Posts: 447
Member Since:
July 11, 2014
sp_UserOfflineSmall Offline
13
August 27, 2020 - 5:54 pm
sp_Permalink sp_Print

sunny said
the  magnet  roter   under  normal   use  or   dismatal  of  the    engine   dos not  loses  any    magnatizum    power       its  the  missuse  or

 keeped in  the  rong  place starts   the   magnets  ageing   proses    the  LUCUS   units    &  Hornsbe   train  set   moters    do        not   many   bother  to  say ,.,.    iv  thron   lots  coz of  damage  

Thanks for the info Sunny,I wouldn't know how the magnet power diminishes but the difference in mine having been remagnatised is beyond measure!Its an interesting topic and when I asked Villiers services for their opinion they just said there are many  reasons why they fail to perform but a re-mag will cure the problem and it has so all good.

cheers Digby

'68 D14 Sport,'65 Honda CB160 Sport,'49 D1 Rigid  ).'62 Honda 50 Sports Cub.'50 D1 plunger.

Avatar
lbayorkie
North Yorkshire
Top Gear User
Club Member
Forum Posts: 532
Member Since:
December 6, 2016
sp_UserOfflineSmall Offline
14
August 27, 2020 - 9:13 pm
sp_Permalink sp_Print

Was the fat spark produced with the re-magnetised rotor in conjunction with the refurbished stator?

Avatar
cocorico
Central France
Top Gear User
Site Member
Forum Posts: 3306
Member Since:
June 23, 2013
sp_UserOfflineSmall Offline
15
August 27, 2020 - 9:35 pm
sp_Permalink sp_Print

Digby said
...Ive heard arguments in the past about magnets never losing their magnetism,well I can confirm that they do but remembering that this one is 71 yrs old....

If you think of the old 'Eclipse' horseshoe magnets which used to be popular presents for boys, they always came with a stel bar across the poles which you removed to use the magnet and then put back to 'keep' the magnetism (until you lost it). The iron cores of a stator act in the same way. If the flywheel and stator are left on the engine, all should be OK, if they are separated the magnetism can decay over a long period. Similarly a reversed polarity through the coils can affect the magnets. As you say, after 60 - 70 years, who knows what has happened to the magnets?

It's certainly a relatively cheap option, even adding in a stator overhaul it's cheaper than CDI!

Avatar
Digby
Leeds West Yorkshire
Top Gear User
Club Member
Forum Posts: 447
Member Since:
July 11, 2014
sp_UserOfflineSmall Offline
16
August 27, 2020 - 10:47 pm
sp_Permalink sp_Print

lbayorkie said
Was the fat spark produced with the re-magnetised rotor in conjunction with the refurbished stator?  

Yes

'68 D14 Sport,'65 Honda CB160 Sport,'49 D1 Rigid  ).'62 Honda 50 Sports Cub.'50 D1 plunger.

Avatar
Digby
Leeds West Yorkshire
Top Gear User
Club Member
Forum Posts: 447
Member Since:
July 11, 2014
sp_UserOfflineSmall Offline
17
August 27, 2020 - 11:02 pm
sp_Permalink sp_Print

Hi Cocorico,

Total cost was £130 which is less than 1/2 the cost of Electrexworld CDI but in this instance it's irrelevant there's no commercially CDI available for these engines as far as I know,I'm quite happy to retain existing system especially now I know all its foibles and how to fix them.

So now on to the HAMMERITED d1 plunger,will the pain never end?😉

'68 D14 Sport,'65 Honda CB160 Sport,'49 D1 Rigid  ).'62 Honda 50 Sports Cub.'50 D1 plunger.

Avatar
cocorico
Central France
Top Gear User
Site Member
Forum Posts: 3306
Member Since:
June 23, 2013
sp_UserOfflineSmall Offline
18
August 28, 2020 - 7:36 am
sp_Permalink sp_Print

Digby said
...will the pain never end?😉  

Do you want it to? whistle

I imagine the non-availability of CDI for the Geni-Mag system is due to the shape of the outer cover. If you were not over concerned with originality, swapping to a WIPAC outer would probably be OK?

Avatar
larryc
burnley lancashire
Top Gear User
Club Member
Forum Posts: 99
Member Since:
August 15, 2019
sp_UserOfflineSmall Offline
19
September 16, 2020 - 4:26 pm
sp_Permalink sp_Print

lbayorkie said 

So its not possible to say how much the better spark is due to remagnetisation and how much due to the stator overhaul. I was thinking of getting my rotor done first and if that doesn't make a marked improvement to then pay for a stator overhaul. 

  I have two rotors I have tried on my build, I did the screwdriver test, by going round the inside of the rotor, the first one had strong magnetic pull on the driver as it went over the all the magnets, the 2nd was weaker and very poor over one magnet, the first one has the better spark.

I don't know how accurate the test is, but it may be a good indicator of the state of the magnets when buying one at an autojumble or testing one

Larryc

Riding a D1 springer with a D3 engine, 2 x more D1's being built from bits one will be a GPO lookalike the other I am just collecting bits for at the moment

Avatar
Carl
Birmingham
Second Gear User
Club Member
Forum Posts: 22
Member Since:
October 2, 2019
sp_UserOfflineSmall Offline
20
November 3, 2020 - 9:54 am
sp_Permalink sp_Print

Just had mind done by George he did a great job befor and after pics. 

20200930_221634.jpgIMG-20201103-WA0002.jpeg

sp_PlupAttachments Attachments
Forum Timezone: Europe/London

Most Users Ever Online: 223

Currently Online: Alan.Moore
6 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

cocorico: 3306

Cornish Rooster: 3122

bart: 2754

Blue Heeler: 2587

David Dale: 2388

Sprung Chicken: 2366

Piquet: 2097

Mags 1: 1876

Munchkin: 1848

jess steele: 1690

Newest Members:

user

Forum Stats:

Groups: 9

Forums: 48

Topics: 11080

Posts: 99281

 

Member Stats:

Guest Posters: 1434

Members: 3003

Moderators: 0

Admins: 3

Administrators: Bantam-Super, JMD, Stoo63