Author Topic: Soft brakes  (Read 2930 times)

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Online Fat Rat

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Soft brakes
« on: July 03, 2016, 23:44:46 »
The front brakes (non ABS) on my K9 DL650 are soft they stop the bike but there is more travel in the lever than I'd expect.

I have bled them with a Mitivac and I have left the lever cable tied overnight but no change. How much travel should I expect?
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Offline greywolf

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Re: Soft brakes
« Reply #1 on: July 04, 2016, 00:12:43 »
The lever can get pretty close to the grip. If you can touch it to the grip, flush your brake fluid with new stuff. When you tied the lever back overnight, did you leave the bars at full left lock to make sure the master cylinder valving was the highest point in the system?
Pat- 2007 DL650A was ridden to all 48 contiguous states. 2012 DL650A outlasted me.
Nicknames I use to lessen typing, Vee = 2002-2012 (K2-L2) DL1000s. Veek=2014+ (L4+) DL1000s. Wee = 2004-2011 (K4-L1) DL650s. Glee = 2012+ (L2+) DL650s

Offline kwackboy

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Re: Soft brakes
« Reply #2 on: July 04, 2016, 09:13:58 »
I had the same with my Vee, did everything. Changed seals, brake lines, piston kit in the master cylinder, Nothing worked.
I put it down the the tokiko calipers , I see the same issues on a lot of bikes that use those caliper type. 
In the end I junked the hole lot and got fireblade calipers and mastercylinder , problem solved .
Chief trouble maker 🙂

Online Fat Rat

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Re: Soft brakes
« Reply #3 on: July 04, 2016, 10:25:50 »
Thanks,

Yes Pat, bars at full lock when lever tied, the lever doesn't touch the bars under normal use but I reckon I could force it.

I have flushed the system twice and no change.
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Offline SuzukiSte

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Re: Soft brakes
« Reply #4 on: July 04, 2016, 11:08:08 »
Same happened on my when I took the mudguard off in the end I bled it from the master cylinder banjo bolt worked at treat all the air was in the piston in the master cylinder.

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Offline greywolf

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Re: Soft brakes
« Reply #5 on: July 04, 2016, 13:40:23 »
You can try cracking the master cylinder banjo bolt open for a bit with a rag around the junction and the area underneath covered. It's likely there is a little air trapped in that area. Clean the area afterward as brake fluid can do nasty things to paint and plastic.
Pat- 2007 DL650A was ridden to all 48 contiguous states. 2012 DL650A outlasted me.
Nicknames I use to lessen typing, Vee = 2002-2012 (K2-L2) DL1000s. Veek=2014+ (L4+) DL1000s. Wee = 2004-2011 (K4-L1) DL650s. Glee = 2012+ (L2+) DL650s

Offline kwackboy

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Re: Soft brakes
« Reply #6 on: July 04, 2016, 15:35:06 »
I'm sure you would have done this but if not You could check that the calipers are moving freely on their mounts,  often the bottom mount seizes up which is caused by corrosion building up between the caliper and the rubber seal, this can cause free play in the lever .
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Offline roganjoshing

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Re: Soft brakes
« Reply #7 on: July 04, 2016, 17:46:45 »
I had a Hornet before my wee and couldn't believe how poor the brakes are in comparison. You get used to braking earlier.

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Offline Moo

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Re: Soft brakes
« Reply #8 on: July 04, 2016, 18:27:15 »
Mine are exactly the same. Really soft feeling, I did wonder if braided hoses would help mine, but for the abs they're expensive. Don't think I'll bother if others said it doesn't help.

I may go the route of using other calipers in the future. On my previous bike, an XJ900 Diversion I fitted Yamaha blue spots, which absolutely transformed the bike!!

Offline Brockett

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Re: Soft brakes
« Reply #9 on: July 04, 2016, 19:42:42 »
How old are the lines? Old lines do swell up a bit under pressure.
This doesn't last forever, so do it while you can.

Offline joderest

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Re: Soft brakes
« Reply #10 on: July 04, 2016, 20:51:54 »
Just to add, I have just installed braided lines on front of Wee, bled twice, lever held back over night, to me they feel soft, have fitted EBC pads as well, however, it does really pull up well, but it does feel soft.