www.YamahaR.co.uk

Hello yamahar forum,

I recently bought a 4xv '98 cheap that had been standing for a while, and the front brake pistons on inspection all have some pitting. Don't you just love numpty neglect?

My question is does anybody know if brake pistons for the blue spot calipers are available cheaply? ... And would anybody know the diameter and dept of each of the 2 piston sizes?

I figure having fresh stoppers on my new baby is a good idea The strip and rebuild has begun and I am finding some horrors.

Cheers

Dazzler

Welcome in Darren
You can get the pistons from wemoto.co.uk amongst other places also check & grease the 20pin white connector on the wiring loom behind the left hand side panel as these are the cause of a lot of electrical problems , also check the exup is working and also the sump bolt is around 15-20nm NOT 42nm unless you want a cracked sump
Have a good read of the 4xv & 5jj sections

Hi jumpy,

Thanks for the reply. I know wemoto well. Good service. It's around 20 quid a piston I think. I need 8.. Ouch.
Going to have to swallow it I think. Thanks for the other advice. My bike has the exup removed... We'll see how that goes eh???

Dazzler

Welcome to the forum Darren, and you have given old monkey face a new nickname jumpy Jompy ... Well he does like swinging from the trees when he is not making PG tips adverts or stating as Caesar in planet of the apes, anyway at least monkey boy has pointed yiu in the right direction.

Good luck with the rebuild, tell us a bit about your biking history and post up some pics of your bike, we love pics on here.

So welcome

Stephen

Yeah they're not cheap bud , all depends on how far out the pistons were as to whether you can give them a rub down & clean up

Lol jumpy jompy - welcome in daz & as Steve says tell us about ur biking history etc - good luck with the brakes


Sent from somewhere in the midlands by Paul

Steve R1 wrote:Welcome to the forum Darren, and you have given old monkey face a new nickname jumpy Jompy ... Well he does like swinging from the trees when he is not making PG tips adverts or stating as Caesar in planet of the apes, anyway at least monkey boy has pointed yiu in the right direction.

Good luck with the rebuild, tell us a bit about your biking history and post up some pics of your bike, we love pics on here.

So welcome

Stephen

Bit rich coming from you Steve, pulling someone up for spelling mistakes!

Welcome in Dazzler.

Colin

Welcome in mate

I would be tempted to get another set of calipers with decent pistons, cheaper I believe

Agreed, lots on eBay. These might be worth a look: http://www.ebay.co.uk/itm/Yamaha-r6-5eb ... 3aab1aa15a" onclick="window.open(this.href);return false;

Hello all... Thanks for your replies.

Sorry jompy but my bloody autocorrect on the iPad always wins.

I'll bag a set of good calipers with shiny pistons... That's the way.

My biking history is long, varied and painful...

17 years old Honda h100s... The s is important.
Kawasaki ar50
Vfr400 nc24
Honda ntv
Srad gsxr 600
Cagiva planet 125
Fireblade x2
Zx7r
Rgv 250 vj22
Suzuki drz 400
Kawasaki z750
Honda xl600r just restored that one
Vfr 750 rc36 which is basically scrap
Suzuki sv650

I think there are couple of others and the order is out of whack. I like bikes.

I will get some pics up of the r1... It's a cat c write of as it has a small ding in the frame so no need to keep it stock which is a happy/sad situation. I was sprayer by trade so I'm not afraid to get the paints out. I think I will get a set of Chinese yellow Yamaha speed block fairings once it's all mechanically sound. Perhaps paint the swing arm in satin black. The bodywork is currently camel yellow scheme which frankly isn't my thing. I'll out that on eBay. Pics to follow.

Dazzler

Hi I just some caliper rebuild kits from a company called powerhouse on e bay good quality kits they will also rebuild ur calipers if ur not confident good luck with bike


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No worries bud I get called a lot worse