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clutch and brake fluid flushes: worth it?

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Old Apr 17, 2018 | 01:16 PM
  #101  
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For brakes and hydraulic clutches, this is one of the most useful tools for getting the brake systems flushed, filled and bled.

BikeMaster Brake Fluid Bleeder
Amazon Amazon

The only other thing you'll need is access to an air compressor, but the BM Brake Fluid Bleeder makes the job a snap. Fast, effective and it's as fun as a fluid service can be
 
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Old Apr 17, 2018 | 02:57 PM
  #102  
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For all of you guys willing to pay $2-300 to have this fluid flushed for you:

Would you pay extra to have someone come to your house to do it for you? I'm thinking I might have a side business figured out!
 
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Old Apr 17, 2018 | 11:00 PM
  #103  
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Originally Posted by FNGonaRK
For all of you guys willing to pay $2-300 to have this fluid flushed for you:

Would you pay extra to have someone come to your house to do it for you? I'm thinking I might have a side business figured out!
Lol....the one catch is you need the proprietary computer to bleed ABS brakes.

I've bled brakes on countless cars and bikes. But in the case of the ABS systems on a Harley, to do it right, it has to be done with that damn computer.
 
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Old Apr 18, 2018 | 07:37 AM
  #104  
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Originally Posted by nevada72
Lol....the one catch is you need the proprietary computer to bleed ABS brakes.

I've bled brakes on countless cars and bikes. But in the case of the ABS systems on a Harley, to do it right, it has to be done with that damn computer.
Not true, I just did mine yesterday, clutch and brakes, on a scale of difficulty between 1-5 this job is a 1, the easiest simplest thing I have done on my bike.
45 minute job for both and a $10 bottle of DOT 4.



 
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Old Apr 18, 2018 | 07:54 AM
  #105  
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Originally Posted by 30glock
Not true, I just did mine yesterday, clutch and brakes, on a scale of difficulty between 1-5 this job is a 1, the easiest simplest thing I have done on my bike.
45 minute job for both and a $10 bottle of DOT 4.
From one of many sources - As with other things, however, Harley-Davidson goes its own way here and recommends using a dealer-only computer called the Digital Technician II. On a Rushmore bike like yours, the front and rear brakes are linked, and the linking is a function of the ABS. The ABS function is controlled by an electro-hydraulic control unit (EHCU), which contains brake fluid and electronically controlled solenoid valves. To properly flush the brake fluid, the EHCU must be activated by the Digital Tech or the old fluid will remain trapped in the system.

https://www.motorcyclistonline.com/h...equipped-bikes

This was also confirmed by my Indy shop who told me to take it to the Harley Dealer to have it done right.

You can move fluid through the system as shown in the video. But you're not flushing it completely.
 
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Old Apr 18, 2018 | 08:33 AM
  #106  
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Originally Posted by nevada72
From one of many sources - [I]As with other
You can move fluid through the system as shown in the video. But you're not flushing it completely.
Thanks for the link, How much fluid is retained in the ABS module ? For the most part when done like I did it you will be replacing most of the fluids in the system minus whatever gets trapped in the module.

I am not arguing your point, I try to keep my bike away from HD service as much as possible and the minimum amount that is retained by the module will have little to no effect when mixed with fresh fluid.
 
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Old Apr 18, 2018 | 08:40 AM
  #107  
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Originally Posted by 30glock
Thanks for the link, How much fluid is retained in the ABS module ? For the most part when done like I did it you will be replacing most of the fluids in the system minus whatever gets trapped in the module.

I am not arguing your point, I try to keep my bike away from HD service as much as possible and the minimum amount that is retained by the module will have little to no effect when mixed with fresh fluid.
I'm with you on avoiding Moco service departments. Once out of warranty mine will rarely see one. However, in instances like this, I feel they have us over a barrel.

As far as how much contaminated brake fluid is left behind? I honestly do not know. Probably not much. However, when it comes to brakes, I like to do it 100%. ymmv.
 
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Old Apr 18, 2018 | 10:24 AM
  #108  
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I was just told this by my service advisory buddy and didn't believe him at first... Guess its true then. Just had it flushed by my Indy at 20k, you think it's a necessity to do it again at the dealership even thought I just did it? I like my bike to stop lol
 
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Old Apr 18, 2018 | 10:34 AM
  #109  
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Originally Posted by Djcamis
I was just told this by my service advisory buddy and didn't believe him at first... Guess its true then. Just had it flushed by my Indy at 20k, you think it's a necessity to do it again at the dealership even thought I just did it? I like my bike to stop lol
I think you'll have a really hard time getting the real answer. Some people will say it flushes it all. Some will say it flushes most, and the left over isn't an issue. Some say it should be done by a dealer to get it all.

The only thing I know is, I've been told by an Indy I trust, and the Moco dealer that the computer is proprietary and the only thing that gets 100% of the fluid changed. My opinion is that the little bit left over probably isn't a big deal. You're probably not going to boil your fluid going down a mountain with that little bit of contaminated fluid. Probably. So the ocd in me wants to be 100% sure my brakes are as good as they can be and is worth the $200.

And bear in mind, I work on almost all my vehicles. I HATE paying that kind of money for something I have done countless times on other cars and bikes.
 
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Old Apr 18, 2018 | 11:55 AM
  #110  
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I like to do most of my own maintenance myself. However, when it comes to brakes, I'm taking it to the dealer to ensure the job is done per the manufacturer recommendations. I don't agree with Harley that you need a two-year brake flush. I use a tool to measure the moisture content in the brake fluid and change it when needed. My brake flushes usually happen around the 3 year point as that's when the moisture content hits the >2% measure which is when replacement is recommended.

Food for thought, but to each their own.
 
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