Author Topic: Bleeding Brakes..  (Read 964 times)

Offline Athame57

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Bleeding Brakes..
« on: October 01, 2021, 10:14:11 AM »
I came across this and wondered if it was the cause of some issues down the years...
I brake for animals!
1978 CB400F2 called Elen.

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  • Grogu
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Re: Bleeding Brakes..
« Reply #1 on: October 01, 2021, 11:10:54 AM »
Yes and often commented on here in brake discussion etc.

Routinely I'd not use full stroke to bleed brakes on any system unless specifically required from instruction of manufacturer, car systems with abs facility the same.

Ultimately a good design has restricted lever/pedal travel that prevents a problem,  but many don't so safer to consider it correct in not using it right the way through travel when bleed is open.

Offline MrDavo

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Re: Bleeding Brakes..
« Reply #2 on: October 01, 2021, 11:37:08 AM »
I had a nightmare with my CB750 front brake, which refused to bleed, until I was pointed at this bulletin, since then I bled those brakes and the dual discs on my Z1A with a matchbox taped to the twistgrip, with no problems whatsoever.

A few years ago, after changing the rear tyre on my Heffalump-Dumpaloon, I pushed the rear brake lever down too far and caused a world of pain when the piston got stuck in a part of the master cylinder bore where it wasn't supposed to ever go.
1969 Honda CL450 'Scrambler'
1974 Kawasaki Z1A
2005 Harley XL1200R Sportster
1985 Porsche 911 3.2 Carrera Sport
1978 VW Bay Window camper van

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Re: Bleeding Brakes..
« Reply #3 on: October 01, 2021, 04:03:02 PM »
A very interesting Honda Bulletin - wonder if they ever manufactured this cause out of the later brake systems?
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

 

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