Doesn't start when warm

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Kalkman007
Posts: 5
Joined: Wed May 23, 2018 3:10 pm
Location: The Netherlands

Doesn't start when warm

Post by Kalkman007 »

Hello, I am the proud owner of an 1950 seagull. It starts like a champ but only when it's cold. I have to let it cool down for 15 minutes to get it started again when it's warm. Could it be the coil?

Thank you for this great site !

Jp from the Netherlands.
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Horsley-Anarak
Posts: 2772
Joined: Thu Aug 07, 2008 8:42 pm
Location: Surrey

Re: Doesn't start when warm

Post by Horsley-Anarak »

I would change the condenser that is under the points box, I have had similar issues, and replacing the condenser cured it.

Also check the coil resistance should be about 4000 ohms.

https://www.ebay.co.uk/itm/Villiers-M17 ... XQDjhQ70WC

H-A
chris
Posts: 547
Joined: Mon Mar 06, 2006 3:13 am
Location: clontarf aus

Re: Doesn't start when warm

Post by chris »

I owned a motor bike which did the same, it was a yamaha srx600 and it only had a kick start. It started easy cold but when hot it would stop and wouldn't start until it cooled down, tried everything but in the end found it was a corroded contact from where the main wire from the magneto connected to the ignition, gave it a clean and the problem was solved
Kalkman007
Posts: 5
Joined: Wed May 23, 2018 3:10 pm
Location: The Netherlands

Re: Doesn't start when warm

Post by Kalkman007 »

The wire from points to coil is almost gone, the flywheel is so stuck on that the hammer method doesn't work. Heating it doesn't does the job so I'm going to try a pulley puller.
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Charles uk
Posts: 4791
Joined: Wed Feb 27, 2008 4:38 pm
Location: Maidenhead Berks UK

Re: Doesn't start when warm

Post by Charles uk »

If you use a puller tool there is a very good chance you will damage the flywheel, search the earlier posts!
Make it idiot proof and someone will make a better idiot.
Kalkman007
Posts: 5
Joined: Wed May 23, 2018 3:10 pm
Location: The Netherlands

Re: Doesn't start when warm

Post by Kalkman007 »

Okay I will try again after a can of WD 40 thnx
Horsley-Anarak
Posts: 2772
Joined: Thu Aug 07, 2008 8:42 pm
Location: Surrey

Re: Doesn't start when warm

Post by Horsley-Anarak »

Kalkman007 wrote:Okay I will try again after a can of WD 40 thnx
Warm it up with a hot air gun, suspend by flywheel and use quite a big hammer, sharp hit don't tap it.
A spare nut is useful as you will damage it.

Image

Give Tam a shout he has spare nuts, or even a flywheel.

H-A
Kalkman007
Posts: 5
Joined: Wed May 23, 2018 3:10 pm
Location: The Netherlands

Re: Doesn't start when warm

Post by Kalkman007 »

After soaking in wd I've hang it to the sealing and gave it quite a few bangs. It came off with a grunge. The resistor is corroded and the coil very old. Where do I buy a replacement??
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Horsley-Anarak
Posts: 2772
Joined: Thu Aug 07, 2008 8:42 pm
Location: Surrey

Re: Doesn't start when warm

Post by Horsley-Anarak »

Kalkman007 wrote: Where do I buy a replacement??
https://www.ebay.co.uk/itm/Villiers-M17 ... XQDjhQ70WC

Test the coil, and replace the wire, don't over heat it when you solder the new wire on.

To test coil use a multimeter, measure resistance between HT pickup pad and wire that comes from the points box, should be about 4000 0hms.

There is a chance the coil is good, but if it is open circuit then replace.

http://villiersservices.co.uk/index.php ... ucts_id=29

H A
Kalkman007
Posts: 5
Joined: Wed May 23, 2018 3:10 pm
Location: The Netherlands

Re: Doesn't start when warm

Post by Kalkman007 »

Thank u, i bought a new coil and point box, the old one was really dessolved.

http://www.villiersparts.co.uk
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Nudge
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Joined: Sun Feb 15, 2015 2:43 am
Location: Auckland, New Zealand

Re: Doesn't start when warm

Post by Nudge »

Yup! That looks a bit crusty!
"THE KING OF BLING"!
Is it better to over think, than not think at all?
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