Hi can anyone confirm about this ignition set

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Hi can anyone confirm about this ignition set

Postby niander » Sun Aug 12, 2007 9:04 am

Hi can anyone confirm about this ignition set as there are no points
is it electronic?

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Postby twostrokenut » Sun Aug 12, 2007 11:37 am

Looks to me like someone has nicked your points , I would say from your pics that it certainly should have some , it appears to be the "combined wind" wipac unit.

Andy.
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Postby niander » Sun Aug 12, 2007 9:31 pm

Ah ok thats why the thing woodnt start!...lol
thing was it did spark when spun wit drill...dnt ask me how...but the timing wood o been out!
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Postby Vic » Mon Aug 13, 2007 6:23 pm

I can't see where points would have fitted! If that central boss in the fly wheel has a cam then maybe it should have points but if it does not then it wont.

Quote the engine number and someone will tell you for sure.
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Postby mrdraddy » Mon Aug 13, 2007 8:51 pm

I agree with vic,cant see any mounting for the points,that opac plastis box looks like a magnetic pickup?and you say you have a spark???
regards paul
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Postby niander » Mon Aug 13, 2007 9:58 pm

Yes i definatly had a spark when i spun the motor with a drill
as it is with no points so what is it?

the thing under the cover has SIG-01 on it?
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Postby Vic » Mon Aug 13, 2007 11:02 pm

What model is it? What is the engine number?
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Postby charlesp » Tue Aug 14, 2007 7:58 am

I reckon this is a standard Wipac ignition.

The moving arm of the points is missing - compare to the picture at:

http://www.seagullparts.co.uk/ignition2.html

The post upon which this rotates is missing. The platic cover rather obscures what's going on - but the other contact should be in there. British Seagull engineers used to discard this cover - it made their lives a bit more difficult and didn't actually serve much of a useful purpose.
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Postby Hugz » Tue Aug 14, 2007 9:43 am

Oh dear, according to seagullparts ignition clarification three of my motors don't conform.....

'67 cent has a bronze flywheel (may have been painted to match brass tank) tho this was the year of changeover. It has mk 1 ignition.

'74 cent has silver flywheel with mk2 ignition.

'82 102 has electronic ignition with kill switch capability which came out '87 or later (when did Mk4 Wipac surface?)

I'm thinking that they may have made errors seeing they say that Mk2 ended in '79 and Mk 3 started in '87 ??? Tho SOS say electronic ignition started in 1980. I think I'm becoming too pedantic.

Hugo.
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Postby 40TPI » Tue Aug 14, 2007 11:42 am

"....the thing under the cover has SIG-01 on it?"


A picture with the plastic WIPAC points cover removed would be useful. A Google on SIG-01 hits http://www.mobiletron.com.tw They are a Taiwanese OEM manufacturing ignition products and other electrical automotive items. A SIG-01 search on their site throws up:

Part Number : SIG-01
New Ref. Number : MFSG00020
Description
SIG-01(Negative Ground)
Widely used in 4 and 2 cycles gasoline engines as in:
LAWNMOWERS, GENERATORS, PUMPS, CULTIVATORS, TILLERS,
COMPACT GARDEN TRACTORS, CHAIN SAWS, BRUSH CUTTERS, TRIMMERS
GO-CARS, BLOWERS...ETC..

(The SIG-01RP product is a pos or neg ground.)

The data sheet is password restricted (typical OEM) but they do have a UK office up north in Preston. The inference is that this is a CDI ignition switch. The shape partially visible under the Wipac points cover looks very similar to their product picture. So maybe someone has been retrofitting CDI?

Although slightly off topic the SIG-01 google also brings up:
http://innovexpo.itee.uq.edu.au/2000/341482969/Thesis.PDF
(Dial up download is not recommended.....)

This is an Oz student final year project on “DIGITAL IGNITION & ELECTRONIC FUEL INJECTIONâ€
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Postby niander » Tue Aug 14, 2007 12:38 pm

It looks like its Wipac System or Mark 2 Wipac
with the points missing...maybe it has been altered with the sig component ...but that isn't even fastened in properly
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Postby mrdraddy » Tue Aug 14, 2007 8:32 pm

Sorry chaps, but all this doesnt explain how "niander" still had a spark( i presume he meant at the plug)No points=no spark??
regards paul
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The unusual ignition!

Postby John@sos » Tue Aug 14, 2007 9:42 pm

Hello All, John is back! refreshed from hlsHappy Birthday holiday in the North and not really feeling any older! (What bus pass?!)

The ignition module is very like the old 'Atom' units. Very clever, they do not need points but sense the coil charge build up as the flywheel passes, then releases a long spark. There were different 'Atom' units for lots of different types of motor. sadly 'Atom' no longer exist. I do have one on an old Villiers backplate, screwed down where the points used to be... looks very odd.

I am told the racing boys like these 'Atom' type units as they allow the motors to rev more freely.

Also at about £10.00 they are a lot cheaper than a new set of points, and never need adjusting!

If it works let us all know what model it is and we can all have a go!

Regards,
john
SOS
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