SOHC.co.uk Forums > CB350/400

Master cylinder rebuild issues

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thegreatpan:
Help / advice needed?

The final job of recommissioning my  my UK spec 1977 400 Four, is causing me some grief.

I have spent today installing a DS master cylinder service kit. I had the devil's own job getting  the wire clip (spring wire not circlip) to hold the rubber boot is there an easy way for this?

Regrettably, there is still a slight weep from the lid of the reservoir unless I tighten the lid to full Muller (technical term). Do I need a new rubber for the cylinder or perhaps a new lid? Lever is now firm and no other leaks.

The bike has passed the MOT and I have now ridden 100 miles with no other issues, it's a great ride!

mike the bike:
Between the lid and the rubber diaphragm there should be a white plastic ring, L - section IIRC.
Those boots can be a sod to get on, I use a skinny screwdriver.

thegreatpan:
I'll check that out, thanks.

thegreatpan:
I have the white L Section washer and it looks in very good condition, and other ideas?

hairygit:
What's the condition of the diaphragm, particularly where it rests on the lip of the reservoir?

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