SOHC.co.uk Forums > CB750

Progress on the 750

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Nurse Julie:
Don't hack anything yet Johnny, I think I can see what the problem is by your photo, I'm just trying to find something to show you how it should be assembled.

Nurse Julie:
The 1st mistake is that you have assembled the gearbox and put the neutral switch in last. The way you assemble the 750/4 gearbox is put the drum selector in first, then fit the neutral switch then the rest of the gearbox. The way you have it set up at the moment, the selector drum is being pulled out by the little jockey wheel thingy. I will post a couple of pics in a minute.

Nurse Julie:
You have the little wheel sitting BEHIND the selector drum like so, which is incorrect, this pulls the drum forward and OUT causing impingement on case. In effect, you are pulling the selector drum out too far.

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The little wheel needs to be sitting ON the selector drum, so as not put any pressure on the selector drum so it sits in the correct place.

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K2-K6:
Additional to Julie's information,  does the outer disc of the drum have distortion at about 1:30 on a clock face ?

I know a photo can give distortion but that's usually at the extreme edge of image, this looks as if the disc face is bowing outward at that point relative to the remaining part of that disc.

Johnny4428:
Thanks very much guys. Julie I have checked this and here is my pic taken just now.

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