Strange Spring

Ok so now i have the electrics sorted. Front forks Rebuilt. Front and rear brakes rebuilt with new stainles hoses But giving the bike one more quick check i noticed a spring hanging from the back of the right hand side rear passenger foot hanger and for the life of me i can't see where it's meant to go. It's not the brake pedal return spring and i am at a loss anybody have any ideas

 

brake light switch return spring ?
it hooks onto the lower hole on the pedal arm

 

It seem's very heavy for a brake light return spring but i will check later

 

What shape of spring?

 

at a guess half inch mabey 3 quaters thick and 3 - 4 inches long

 

Definitely not the rear brake return spring

 

brake light spring or rear mc spring
are in those areas

 

it doesnt clip on the silencer does it ?

 

Not anywhere i can see 4 into 1 Motad

 

Kickstand spring?
Center stand spring?

 

I can post a picture but i don't know how

 

Uploaded a photo to flicker here is the link
https://www.flickr.com/photos/192395820@N03/51012909003/in/dateposted-public/

 

What is right below the spring? Looks to be an exhaust that has a bracket with a hole in it. The obvious place to go?

 

that little bracket the spring is hooked on ,is where the brake pedal return spring should anchor, its on the back of the footrest hanger (right)
maybe you've got another spring ,anchored somewhere else, but thats where it should be anchored

 

For all those who said brake pedal return spring you get the gold prize everybody else thanks for taking the time and the advice. Spring on just had first ride surprisingly good for a 31 year old bike gearbox is very smooth only downside is it's a bit lumpy i suspect carbs so in a couple of weeks they shall be getting ultrasonicaly cleaned. Thank you all you have put a hugh smile on a late 40's man