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I have done the RGM conversion to the smaller diameter master cylinder. The conversion went well, I have a milling machine, so was able to drill & tap the master cylinder perfectly before fitting the kit.
Problem now is that it refuses to bleed. All new pipework, pistons and seals, but try as I might, all I'm getting is a few bubbles rising from the master cylinder. Any ideas as to what might be the problem?
I did this mod a while ago…
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I did this mod a while ago. Reading the instructions I believe it refers to the port position in the body of the master cylinder may be being masked by the adjustable plunger. Move the plunger in and out and keep on pumping until you see the bubbles diminish and the lever getting less spongy and "solid" indicating that all air has been evacuated from the system.