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Author Topic: (URG) One spring to finish my bike! Can you help me?  (Read 678 times)

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Offline Munro

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(URG) One spring to finish my bike! Can you help me?
« on: November 24, 2020, 12:21:47 AM »
I have never been so close after 3 years restoring of finishing my bike. But there is a small problem, I took pictures of every single piece before disassemble but I forgot to take a picture of the rear brake spring, I do not have any clue of how should I put it back.
I have a 750 four F1.

Does anybody have a picture?

Cheers from France!!

A Picture of the bike:

« Last Edit: November 24, 2020, 04:01:24 AM by Munro »
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Offline robvangulik

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #1 on: November 24, 2020, 01:15:21 AM »
Does this help?
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Offline Munro

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #2 on: November 24, 2020, 03:55:53 AM »
Your predisposition for helping me helps a lot  ;) but I already have that Workshop Manual and I did not come to a conclusion.  ::)
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Offline robvangulik

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #3 on: November 24, 2020, 04:16:05 AM »
The square hook hooks around the part it is pointing at, the round hook hooks around the frame...
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Offline PeWe

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #4 on: November 24, 2020, 06:00:10 AM »
This is the spring with brake rod many recommends to assemble before swingarm.
But I have done afterwards too.

I had old photos I could look at.
I remember it look upside down.
The brake lever shaft not fully in position and use of strong screwdriver.

This is a photo in post 172 that you might zoom into
http://forums.sohc4.net/index.php?topic=168243.msg2041359.msg#2041359

« Last Edit: November 24, 2020, 06:07:09 AM by PeWe »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline robvangulik

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #5 on: November 24, 2020, 06:15:54 AM »
Quote from: PeWe on November 24, 2020, 06:00:10 AM
This is the spring with brake rod many recommends to assemble before swingarm.
But I have done afterwards too.

I had old photos I could look at.
I remember it look upside down.
The brake lever shaft not fully in position and use of strong screwdriver.

This is a photo in post 172 that you might zoom into
http://forums.sohc4.net/index.php?topic=168243.msg2041359.msg#2041359
His bike is a 750F1, with disc brake and the pedal and footrest fixed to an aluminium bracket, just that bit different.
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Offline PeWe

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #6 on: November 24, 2020, 08:42:25 AM »
OK, I did not see a disc, thought it was rebuilt.
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline robvangulik

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #7 on: November 24, 2020, 10:38:28 AM »
I had one for 12 years and did over 250k km's with it, and it may be over 30 years ago I'll never forget that bike :D
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Offline Munro

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #8 on: November 24, 2020, 02:03:26 PM »
Exactly is different!! Hope that someone has a picture or a great description I have been like 3 hours trying to figure it out
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Offline Munro

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #9 on: November 25, 2020, 09:54:07 AM »
Up
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Offline robvangulik

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Re: (URG) One spring to finish my bike! Can you help me?
« Reply #10 on: November 25, 2020, 10:39:36 AM »
Did you really try? There are only a few ways you can try to put that spring on, and only one right way...
Imagine how the parts move when you press the pedal down, and hook the spring on in the only way it will make the pedal come up again!
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