Brake bleeder kits

[Wanderer]

I'm planning to replace the brake hoses on my R90s. However, I've never primed and bled brake hoses before. I've been doing some reading on the internet and, in theory, it sounds simple enough. However, there appear to be a number of various kits available to assist this process.

Does anyone have any recommendations as to (a) whether these kits are any good and (b) which particular kit you'd recommend?

Many thanks in advance, Will

 

[cookie]

that bike will bleed fine with just a bit of clear pipe and a jam jar

 

[Alex]

that bike will bleed fine with just a bit of clear pipe and a jam jar

May I also suggest a few bottles of fresh brake fluid??

 

[cookie]

and an 11(?)mm spanner.

 

[Possu]

I use a 50ml syringe with a length of battery breather hose fitted. You can then suck fluid through from reservoir to caliper or pump it through from caliper to reservoir.

 

[Wanderer]

Steve

How does that work then (syringe and hose?). If I keep the master cylinder topped up and use a one way valve in the hose after the caliper, can I just keep pumping the brake? Sounds simple that way so I'm intrigued re the sryinge.

 

[Wizard]

If Steve does it the way I do.....

Pipe over bleed valve, syringe on end, fill the caliper & lines from the bottom. Once the fluid is in the master cylinder, top up as per normal. Then bleed the caliper to make sure there's no last wee bubbles trapped.

IMHO it makes bleeding an awful lot easier as you're pushing most of the air up, which is where it wants to go anyway.

 

[Possu]

Fill reservoir, attach syringe tube to opened bleed nipple & extend/pull on syringe. If there's no blockage anywhere, fluid will be drawn straight through. Repeat for both calipers, keeping an eye on fluid level, don't let it get too low or you'll suck air in.

If i think there's an air bubble somewhere, I suck most of the fluid out of the reservoir with syringe, hold upright & squeeze gently to bring fluid level close to tubes end & place over bleed nipple. Open the nipple & very slowly squeeze syringe, pumping fluid through from bottom to top, hopefully taking the bubble with it - keep reservoir top on for obvious reasons.

Pump lever a few times & cable tie overnight, bleed in normal way following day if you want. Been doing this for years from when I had ISR calipers on a GSX-R. Clever Swedish bas*&rds put the bleed nipple at the lowest point on the caliper.............