Blue Spot Calipers

Post by **nuggitt** » Mon May 01, 2017 10:35 am

Like stig says they can be a pig to bleed

What I normally do is get a shringe from your local vet and some tubing from an aquatic centre. Then put some fluid in the shringe and fit the tube on to the opened nipple on the caliper and reverse bleed by pushing the fluid in the shringe up to the reservoir, so it pushes all the air to the top.

Another problem you may encounter is you'll get air trapped in the double banjo at the reservoir. What you have to do if you do is pump the brake lever so you feel some pressure. Then get a 14ml spanner and just crack open the banjo bolt and you will hear air come out, then nip the bolt back up quick.

Then you can continue bleeding all the air out of the system till there's no air bubbles in the tubes. You then should have good pressure to the brakes.

Another tip is to cover all the paintwork up in the area where you're working with with cloth's and rags. Brake fluid is horrible stuff and you don't want it anywhere near the paintwork etc.

Enduro_Rider · Post by **Enduro_Rider** » Mon May 01, 2017 3:24 pm

Thanks for the help

that will make my life easier to fit them!!

Ive ordered some new pads for it so will put them on as soon as they come!!

Post by **Stig** » Mon May 01, 2017 3:31 pm

One issue to note is that air sometimes passes the threads of the bleed nipple when it's cracked open. Open it JUST enough to pass fluid

YAMAEXUP · Post by **YAMAEXUP** » Mon May 01, 2017 4:12 pm

For those without a radial m/c & twin hoses down to the calipers then use one of these to bleed at the m/c

Enduro_Rider · Post by **Enduro_Rider** » Mon May 01, 2017 9:26 pm

just messing around in the garage - Is it me or are the blue spot calipers smaller than the originals?

Post by **Stig** » Mon May 01, 2017 10:07 pm

Smaller and lighter

.... but way more effective

Enduro_Rider · Post by **Enduro_Rider** » Mon May 01, 2017 10:29 pm

cant wait to fit them!!

I had some guy saying to keep the old original master cylinder as they have a bigger plunger!

Post by **Stig** » Mon May 01, 2017 10:43 pm

You need a matching mc. The larger bore gives a wooden feel to the lever

Radial mc is supposed to be even better still. I have one to try but not fitted yet

Enduro_Rider · Post by **Enduro_Rider** » Sun May 07, 2017 9:43 pm

Hi all

Fitted the blue spots today and they appeared to bleed fine with no issues!!

Took her out for a quick test and they feel so much better - 2 fingers rather than 4

Just need to bed the new pads in now!!

Thanks for the help guys!!

Post by **nuggitt** » Sun May 07, 2017 9:49 pm

Well done that man.

Jay762 · Post by **Jay762** » Mon May 08, 2017 11:41 am

Excellent - a decent cost effective upgrade fir the old girl

nismo · Post by **nismo** » Mon May 08, 2017 12:30 pm

YAMAEXUP wrote:For those without a radial m/c & twin hoses down to the calipers then use one of these to bleed at the m/c

I likee!!! Where may one acquire such a device?

Post by **nuggitt** » Mon May 08, 2017 2:41 pm

Here's one for you.

I think your bolt size on the banjo bolt on you bike will be an M10 x 1.25 pitch but check first befor ordering.

BANJO BOLT WITH NIPPLE

Another one here in stainless steel and a bit cheaper.

STAINLESS STEEL ONE HERE.

nismo · Post by **nismo** » Mon May 08, 2017 4:44 pm

Woohoo! Thanks nuggitt