Servicing front master cylinder RGS

yes and no, you can disassemble by using a pin punch but to assemble the new piston and seals you need a hollow drift that is sized to install the seals and the retaining ring
drift needs to be sized to match the retaining clip


 
Sure its not just the lever pivot dry or the face which contacts the end of the piston dragging across it. If you clean and lube it can make a bit difference to the feel.

If there are no leaking and the pistons in the calliper's are moving freely then perhaps you should just do a fluid change

 
Try polishing the lever contact face with some very fine wet and dry and then give it a smear of grease, whilst the lever is off give the it and MC a good clean and another smear of grease. Simple things first.
 
Duncan, if it turns out to be the piston and seals, see attached link. Lothar put together a very good "How to" guide. If the link doesn't work, go to Gallery, scroll down till you find Documents and you'll find it there.

http://www.laverdaforum.com/gallery/albums/userpics/11278/Repair_Guide_Clutch_and_Brake_Master.pdf

Ian
 
Thanks for all advice, sure enough cleaned up lever and piston bit of grease on contact just like new. I've owned this bike since 1984 and never had that piston or seals replaced yet so thought that was the logical thing to do but hey why do a job that doesn't need doing. 
 
No real special tool requiered, if you follow the PDF instruction above...  ;) If I can do it, anyone can as long as the shown tools are available. Most of them should be in your toolbox anyway...  ;)...
 
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