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CA77 brake light switch hookup.

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Mike546
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Joined: Tue Jul 26, 2016 6:43 pm

CA77 brake light switch hookup.

Post by Mike546 » Sun Jul 31, 2016 10:34 am

Can someone take a picture of the way the springs are on the rear brake pedal for the switch. I just picked up a 65 and it seems to put slack at the switch when I press on the pedal. The shaft is pretty sloppy too if that makes a difference. The bike has seen better days for sure.

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brewsky
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Post by brewsky » Sun Jul 31, 2016 11:13 am

From parts diagram....red shows where the parts attach
Attachments
rear brake switch 1.jpg
rear brake switch 1.jpg (98.55 KiB) Viewed 3163 times
66 dream, 78 cb750k, 02fz1, 09 wing

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Seadog
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Re: CA77 brake light switch hookup.

Post by Seadog » Sun Jul 31, 2016 1:22 pm

I'm not quite sure, but is this what you're looking for?

Mike546 wrote:Can someone take a picture of the way the springs are on the rear brake pedal for the switch. I just picked up a 65 and it seems to put slack at the switch when I press on the pedal. The shaft is pretty sloppy too if that makes a difference. The bike has seen better days for sure.
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image.jpeg
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Mike546
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Re: CA77 brake light switch hookup.

Post by Mike546 » Sun Jul 31, 2016 2:09 pm

Seadog wrote:I'm not quite sure, but is this what you're looking for?

Mike546 wrote:Can someone take a picture of the way the springs are on the rear brake pedal for the switch. I just picked up a 65 and it seems to put slack at the switch when I press on the pedal. The shaft is pretty sloppy too if that makes a difference. The bike has seen better days for sure.
Yes that's it. Beautiful shape that bike. The spring you show there is hitting on the swing arm on mine. I believe the lower arm is sitting too far to the rear. I only see the one stop that holds it in position. Back out to the garage.

stepper
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Post by stepper » Sun Jul 31, 2016 3:24 pm

You need to preload the brake so that the arm is just taut with the spring.
This is easier as a two person job as one person will need to keep the arm cocked and held in position on the left while the other person mounts the brake pedal on the right.

As I don't have the luxury of help in my garage, I had to use zip ties to hold the arm cocked (zip tied to the muffler hanger) and a piece of wood wedged against the mechanism and a wall to keep the spindle from pushing in on the right.
Last edited by stepper on Sun Jul 31, 2016 6:59 pm, edited 1 time in total.

Mike546
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Joined: Tue Jul 26, 2016 6:43 pm

Post by Mike546 » Sun Jul 31, 2016 4:01 pm

stepper wrote:You need to preload the brake so that the arm is just taught with the spring.
This is easier as a two person job as one person will need to keep the arm cocked and held in position on the left while the other person mounts the brake pedal on the right.

As I don't have the luxury of help in my garage, I had to use zip ties to hold the arm cocked (zip tied to the muffler hanger) and a piece of wood wedged against the mechanism and a wall to keep the spindle from pushing in on the right.
Yes that was the problem. It wasnt preloaded against the header on the right, all good for now.
Thanks everyone

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