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Post by bikerdave on Apr 23, 2007 20:17:24 GMT
hi, do the R1 calipers fit straight on to the 900s ?  and would you need to replace the master cylinder with a R1 one? does if improve the braking by much ? thanks to anyone that can help with above |
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Post by CD on Apr 23, 2007 20:34:42 GMT
Aparrently they go straight on.
Some weeks ago, I was after a set on ebay, but forgot the time Doh :-(
The R1s etc with blue spot calipers have floating discs. Divvies have the wearing part of the disck fixed to the hub carrier. The floating type will be less likely to warp when worked hard which makes sense with powerful calipers.
You will need the calipers and the master cylinder, but you will have to take a chance on the disc warping issue. The other issue will be fork dive. Sports bikes can use their powerful brakes because the forks are set up for less dive than an all-rounder/tourer like the Diversion.
I reasoned that if I could get the brakes for £70 - £80 it was worth taking the chance as they could be swapped out again and resold if I wasn't happy.
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Post by CD on May 8, 2007 14:37:42 GMT
I've now got some blue spot brakes and master cylinder. I'll need longer hoses than fitted to the R6 and a bracket to carry the remote fluid reservoir. The latter is a bit of a fly in the ointment as it will never look as neat as the original Divvie master cylinder.
PS trying to get prices for R6 brake hoses with a longer actual hose. So far that simply doesn't compute. "Sir, we'll need to see your bike before we can make up any brake hoses".
Yeah, right - & how do I get it to you with no brakes.
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Post by werner1 on May 8, 2007 21:07:44 GMT
Can't you use the divvy brake hoses on the R1 calipers ?
I thought they all used the same banjo's
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Post by HRHpenfold on May 8, 2007 22:11:40 GMT
I've now got some blue spot brakes and master cylinder. I'll need longer hoses than fitted to the R6 and a bracket to carry the remote fluid reservoir. The latter is a bit of a fly in the ointment as it will never look as neat as the original Divvie master cylinder. PS trying to get prices for R6 brake hoses with a longer actual hose. So far that simply doesn't compute. "Sir, we'll need to see your bike before we can make up any brake hoses". Yeah, right - & how do I get it to you with no brakes. try the fazer 600 master cylinder and hoses, in fact, i think i have the non braided origonal 600 hoses and splitter, if you want to try them first? |
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Post by General Gman on May 9, 2007 5:21:00 GMT
The Sumitomo one piece calipers have slightly different positions for the banjo bolts so you'd need to offer the old hoses up to see if you can get them to fit ok, but would have thought they'd go on.
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Post by CD on May 9, 2007 19:19:49 GMT
I've never looked closely at these before. Presume the blue discs unscrew to remove the pistons. Might be worth my while stripping them to make absolutely sure there's nothing going on inside. Anyone know how much the special tool costs? It looks like the original Divvie pipes will fit with a bit of slack to spare. I think the slight angle wont be enough to make any difference. But a good excuse to fit braided hoses. The R6 uses separate hoses from each caliper to master cylinder.  This is the R6 master. Not the ideal angle as the pot looks like its attached. It's not and will need a bracket. Note the paired pipes.  |
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Post by bikerdave on May 11, 2007 12:25:17 GMT
Yamaha Brake Caliper Tool. R1, R6, FJR, Fazer etc.
item 170109640250
above is on E-bay just search the number
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Post by CD on May 11, 2007 13:01:17 GMT
Thanks - bit pricey. S'pose wont be cheap to make. I wonder what Yamaha charge.
Just called Tamworth Yamaha. There is no service tool to move the blue covers, but there is space to get the pistons out the normal way with air or hydraulic pressure. "Trust me" he says - No need to remove covers.
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Post by m40man on May 11, 2007 13:22:26 GMT
Thanks - bit pricey. S'pose wont be cheap to make. I wonder what Yamaha charge. Just called Tamworth Yamaha. There is no service tool to move the blue covers, but there is space to get the pistons out the normal way with air or hydraulic pressure. "Trust me" he says. 'Special tool' avail on Ebay. £38. Can't show a link as Ebay is not allowed at work (where I am currently working hard.) *Doh! Should read prev before posting * |
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Post by General Gman on May 11, 2007 15:44:15 GMT
I would pay to watch anyone try to undo the 'caps' on those calipers.Cos they do screw in, rather than out .
Local bloke probed one of the caps on a cmm machine and made a tool to remove them himself on a cnc beastie.
But then he works for Xtrac.....
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Post by eliminator on May 11, 2007 17:59:06 GMT
cmm, Co-ordinate measuring machine.
This is a device that accurately dimensions objects by the use of styli mounted on a spring mounted probe head. ;D
Frequently thought to be the bees knees, but they have to be used with a certain amount of nous. I used one for about 20 years.
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Post by HRHpenfold on May 11, 2007 18:41:19 GMT
cmm, Co-ordinate measuring machine. This is a device that accurately dimensions objects by the use of styli mounted on a spring mounted probe head. ;D Frequently thought to be the bees knees, but they have to be used with a certain amount of nous. I used one for about 20 years. that rules me out then ;D |
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Post by max900 on May 11, 2007 19:56:05 GMT
cmm, Co-ordinate measuring machine. This is a device that accurately dimensions objects by the use of styli mounted on a spring mounted probe head. ;D Frequently thought to be the bees knees, but they have to be used with a certain amount of nous. I used one for about 20 years. can't go using a hammer then  rules me out of ever using one ;D |
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Post by CD on May 11, 2007 20:15:59 GMT
At a wild guess it looks like a huge Torx wrench. He'd be p**sed off if they exist that big - and actually fit.
Maybe not, Gurnin said making it was a foreigner job.
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Post by werner1 on May 12, 2007 7:25:49 GMT
Why do you wan't to unscrew the blue thingies ?
It doesn't seem neccassery .
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Post by CD on May 12, 2007 10:00:17 GMT
Just called Tamworth Yamaha. There is no service tool to move the blue covers, but there is space to get the pistons out the normal way with air or hydraulic pressure. "Trust me" he says - No need to remove covers. So its official, there is no need to remove the covers. |
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Post by HRHpenfold on May 12, 2007 18:16:27 GMT
iv completly cleaned the pistons of both Fazers, a thunderace as well and never touched the blue thingies ;D
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Post by CD on May 13, 2007 11:07:12 GMT
Thinking about the manufacturing processes, most calipers split, these dont so the piston bores will have to be cut through from one side. The blue/gold covers fill the open holes left over from doing the job. For safety sake, the covers will unscrew inwards so there is no risk of them unscrewing in use. So to get them out you would first have to remove the pistons. By which time there would be no point removing the blue thingies.
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Post by HRHpenfold on May 14, 2007 22:14:43 GMT
the fat old girl will stop better with blue spots ;D
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Post by CD on May 15, 2007 14:49:00 GMT
She had better, cuz I'll have buy new brake pads.
Unless I can file the old 1/2 worn divvie pads to fit ;D
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Post by HRHpenfold on May 15, 2007 21:11:02 GMT
get ebc HH awsome stopping ;D
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Post by HRHpenfold on Jun 12, 2007 19:15:10 GMT
Im going to be sorting out this upgrade for my newly aquired 900, using Fazer 600 blue spots, im going to try the origonal master cylinder first, which should work ok, failing that i will replace with a fazer master cylinder, my Gs has non floating disks and non floating calipers, so not to worried about that issue, but failing that working, ive seen a divvie with a later model TDm 850 wheel on, and im guessing that a Fj1200 wheel will also fit, i have two sets of blue spots a set of Thundercat ones and fazer 600 ones, they are slightly different, but they both should fit  |
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Post by CD on Jun 18, 2007 19:31:19 GMT
I've done the job will post pix soon. I had to use BIY (Build It Yourself) fittings, because the made up hoses vendors couldnt compute my needs - "2004 R6 plus 100mm" was beyond them. The fittings went together ok enough though I needed really sharp wire cutters. The fittings also turn around as they are tightened so it needed a few a trials & errors to get them right.
I ran the LHS pipe straight to the caliper and the RHS under the bottom triple clamp being careful to avoid the fairing subframe and the steering lock stops. I also used 1/4" petrol pipe to protect the brake hose (and bike paint) where it could rub the frame etc.
I've always found bike brakes to be a real pain to bleed, so used a large syringe to push fluid into the caliper ends. This was quick, but I still had to tie the brake lever back for a couple of hours to finally clear the lines.
The old divvie pipes were no help as they are too long and they would have to bend loads and twist 90 degrees to reach the new calipers.
Regarding the floating ability of R6 brakes. the discs hardly float at all. I guess they float just enough to reduce the risk of them warping but not enough for them to rattle and click like full race brakes.
I've not had chance to run in the brakes, but on a short test run they felt really good. Time will tell.
Edit: The new brakes are powerful and much more controllable. A pillion siad the difference is immediate far less pogoing on/off the brakes. IMHO this is a well worthwhile mod, though perhaps a Fazer TDM900 master cylinder would look better.
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