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Offline steveg

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Front brake lever intermittant problem
« on: March 13, 2019, 07:39:07 PM »
Hello All

Strange problem with my front brake lever

Calipers are clean and free ( last serviced approx 1 month ago )

The front brake lever occassionaly does not fully return especially when bike has been stood overnight

I have removed front brake lever and cleaned and lubricated pivot pin with red rubber grease

Lever fine most of the time , but still occasionally especially when been stood overnight , the lever is slow to return on the first pull , but is then fine

Brake fluid only 6 months old and level fine , no leaks

Any ideas ?

Cheers Steve




Tiger 800 roadie 2012

Offline chico

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Re: Front brake lever intermittant problem
« Reply #1 on: March 14, 2019, 05:02:46 AM »
Have you lubed the cable?

Chico

Offline Stevie.P

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Re: Front brake lever intermittant problem
« Reply #2 on: March 14, 2019, 09:43:59 AM »
*Originally Posted by chico [+]
Have you lubed the cable?

Chico

 :187: front brake.
Also owned my 1979 Bonnie T140E from new!

We don't stop playing because we grow old .. WE GROW OLD BECAUSE WE STOP PLAYING!!!


Offline Tigermainia

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Re: Front brake lever intermittant problem
« Reply #3 on: March 14, 2019, 09:48:40 AM »
Are the calipers/pistons slow to release when cold then as they warm-up ease off (after first application)? May be in need of caliper cleaning?  :031:
From '61 to present - BSA C12, Royal Enfield Crusader Sports, Tiger 110, T120R Bonnie, BMW R50, Suzuki GT185, T120 Bonnie, KE 175, BMW R75, GSX750, FJ1200, XJR1300, FZ1000, Sprint1050 & Street Triple, Sprint1050, Speedtriple, Sprint1050, Sprint GT, Trophy 1215, Speedtriple & Bonneville, XRx, XRt

Offline Bladerunner99

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Re: Front brake lever intermittant problem
« Reply #4 on: March 14, 2019, 09:55:11 AM »
Is the diaphragm ok inside the master cylinder?
Ride to work. Work to ride

Offline chico

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Re: Front brake lever intermittant problem
« Reply #5 on: March 14, 2019, 04:07:46 PM »
*Originally Posted by Stevie.P [+]
:187: front brake.

Sorry, I shouldn't be writing comments late at night.

Chico

Offline steveg

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Re: Front brake lever intermittant problem
« Reply #6 on: March 14, 2019, 04:54:48 PM »
Thanks for the replies

Just pulled off front master cylinder to look @ diaphragm

Appears to be intact but was really difficult to get back on right , the diaphragm seems to have contracted slightly and did not want to seat correctly , after a bit of a fiddle got it back on OK

Brakes calipers are really clean and not sticking

Will see how it goes , could not see  diaphragm being sold on WorldOfTriumph as an individual part ....

Cheers Steveg
Tiger 800 roadie 2012

Offline The Reaper

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Re: Front brake lever intermittant problem
« Reply #7 on: March 14, 2019, 05:30:00 PM »
I overtightened my clutch pivot bolt a few weeks ago, resulting in my clutch lever doing the same thing. Once slackened off ever so slightly it was fine again. Worth checking that?

 


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