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Old 12-17-2012, 02:15 AM
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Correct procedure for bleeding ALL the brakes

Hi

I need to replace the rear calliper on my 800 so will need / want to bleed the whole system.

Can someone outline the procedure for me please ?

Stuart
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Old 12-17-2012, 08:44 AM
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Just like bleeding the brakes on a car. Easiest if you use a one man brake bleeder bottle. Otherwise you will need two people.

The most important part is to identify which of the rear bleed screws is attached to which brake lever (foot or hand). This should be easy as you will have it apart to replace the caliper. So just remember which is which when you reassemble.

1. attach the 1 man bleeder bottle, or slip a small hose/tube over the end of the bleed screw and place the other end in a bottle/jar with a little brake fluid in it. That way as air bubbles out it can't return air back up the hose. The only thing being sucked up the hose will be brake fluid.

2. With the hose in place, open the bleed screw.

3. open the master cylinder appropriate to the line you are bleeding (Hand or foot)

4. being careful not to splash brake fluid everywhere, or to let the master cylinder go dry (therefore letting air back into the top of the system) depress the brake lever to force clean brake fluid into the brake line fro the master cylinder. Do this 5-6 times and refill the master cylinder. You will find that you have to refill the master cylinder often as these are long brake lines and small master cylinders.

5. When you are confident that all the old fluid and air is purged from the line, close the bleed screw and move on.

6. After all 4 bleed screws are bled, recap the master cylinders. You should now have good stiff brake levers at the hand and the foot. It will probably take a whole pint sized bottle to do all 4 bleed screws. Don't try to save the extra fluid for more than a week or so. It attracts water right out of the air and goes bad easily. On the other hand I recommend keeping it around for a week or so in case you find you left a bleed screw a little lose and need to top it back off again.
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Old 12-17-2012, 01:44 PM
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Quote:
Originally Posted by KICKER431 View Post
............. 3. open the master cylinder appropriate to the line you are bleeding (Hand or foot)
Thanks for the response Kicker

I have had the brakes off for a while .. Can you tell me which connection to the caliper the foot brake lines connects to ???

Stuart
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Old 12-17-2012, 02:26 PM
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Not until I can get home to look at my machines. Might be a few days. Or you could check the online parts diagrams at cheapcycleparts.com or Polaris.com
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MINE:2015 Sportsman SP 800 Sunset Red
completely stock FOR NOW

HERS:2007 Sportsman 700 EFI Black Metallic
Tamarack Cargo Seat, Fender Guards with footpegs from Thor, UNI air filter, Symtec heated grips
Warn 2500 with synthetic rope, ThermoTec exhaust wrap, Reverse Override, 3 Headlight Mod
26" Maxxis Bighorn 2.0



RIP Sarge (2004 Sportsman 700 EFI killed on trail 32, Rock House, Hatfield-McCoy)
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Old 12-17-2012, 02:28 PM
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Thanks kicker ... Will check those sites out
Have a great Christmas
Stuart


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Old 12-17-2012, 02:54 PM
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All done .... Thanks kicker


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Old 01-08-2013, 08:55 PM
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Anytime I bleed brakes on my car I just use gravity.. i loosen the bleeders, remove the brake fluid resevoir cap, and keep topping it up as it leaks out the bleeders. Don't let it run dry in the resevoir! Always works well for me, imagine the same should work with the atv?
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Old 01-09-2013, 01:42 PM
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Another great way to bleed hydraulic systems is to use a MityVac. These are inexpensive vacuum pumps that connect to the bleeder screw and draw the fluid throught the system with a few pumps of the handle. It moves easily from point to point and all you have to do is replenish the master as the fluid is pulled through. Wouldn't think of doing it any other way. Your method may vary. - MarkC
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