SOHC.co.uk Forums > CB350/400

Play in brake lever

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McCabe-Thiele (Ted):
Both my 400 & 500 had what I considered to be excessive movement in the brake lever - there was  excessive travel before the lever part started to push down on the piston.

The internals on my 400 were beyond just fitting new seals so replacement was essential.
The DS master cylinder is I believe a different diameter piston - problem resolved as it has hardly any free play before the lever arm end touches the m/c piston.

I used the DS master cylinder on my 500 with the same good outcome.

Trigger:

--- Quote from: Multiman on August 14, 2023, 11:56:05 AM ---Mine (part 365) had reverted to a pile of rust so I made another from some 6mm steel rod.
Very simple to make.

--- End quote ---

Part 365 is rubber, not steel rod  ::)

Deano400:
As Graham says:

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Nurse Julie:
Just use a piece of rubber pipe as per Gareths photo, it was never metal.

Mikep328:
"How much play do you have in the lever pivot?"

There didn't seem to be any noticeable play in the pivot itself when I was working on the brakes but I'll check that closely tomorrow when I go to the garage (3/4 mile from the house).  I was looking at new levers on DSS in case I needed one and see there is a pattern lever and an OEM lever for, of course, considerably more money.  But in looking at the close up pic, the OEM seems to be a better quality item - with a bushing of (I assume) harder metal in the pivot hole rather than just a hole in the Al lever

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