Author Topic: Front master cylinder repair.  (Read 2831 times)

Offline Mitchv60

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Front master cylinder repair.
« on: October 20, 2012, 05:35:45 PM »
Just been trying to repair my master cylinder but have a bit of an issue.
After spending 1.5 hours trying to get a rusted circlip out I've managed to dessemble ,clean and reassemble my master cylinder it now it is leaking.

My question is this.I have a clymer manual which I'm using and this shows that the primary and secondary cap should be between the spring and piston.
But on the one I've removed the secondary cup is fitted to the piston.

Is the clymer manual wrong as that how I fitted it?

                     Cheers Mitch
« Last Edit: October 20, 2012, 05:41:44 PM by Mitchv60 »
1972 cb500 k2(rusty)
2000 Aprilia rsvr (very modified)
2002 Aprilia rsvr (trackbike)

Offline mick

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Re: Front master cylinder repair.
« Reply #1 on: October 20, 2012, 06:14:02 PM »

Offline tom400f

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Re: Front master cylinder repair.
« Reply #2 on: October 20, 2012, 06:17:05 PM »
I've just done mine on a 400F. You fit the secondary cup over the piston - just mind not to bend the snowflake things.

Here's a picture, old/new. Ignore the order I've laid them out in but you can see the secondary cup on the old one.

Pukka manual for your bike here: http://www.dotheton.com/downloads/CB500-550_Manual.pdf
1978 CB400F2 Yellow
1995 VFR750FS Red
1997 VFR750FV Lapis Blue
2013 Yamaha FZ8 Grey

Offline Mitchv60

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Re: Front master cylinder repair.
« Reply #3 on: October 21, 2012, 06:27:06 PM »
Thanks for that,as I suspected.I cocked up. :o
 Just need to get that bloody circlip out now.
1972 cb500 k2(rusty)
2000 Aprilia rsvr (very modified)
2002 Aprilia rsvr (trackbike)

Offline tom400f

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Re: Front master cylinder repair.
« Reply #4 on: October 21, 2012, 10:01:50 PM »
If it helps anyone - I bought a pair of these: http://www.amazon.co.uk/exec/obidos/ASIN/B0034A6B6K

They are just about long/thin enough to reach down to the circlip.

1978 CB400F2 Yellow
1995 VFR750FS Red
1997 VFR750FV Lapis Blue
2013 Yamaha FZ8 Grey

 

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