Twinpot Brake upgrade on 78 Skunk

[salty_monk]

Yes I have some on the shelf. No issue with the alternate wheel as far as brakes or rotors are concerned. ZG1000 - make sure they are the twinpot not the earlier singles

Those appear to be the right rotors but if going new you might find one for the CBR F4 which has the right bolt circle. It doesn't really make a difference it's just moderately easier to just open the holes up to 8mm rather than using the spacer as a template to re-drill them.

The bracket kit includes all the brackets & spacers you need. (Rotor spacer acts as a drilling jig, bolts to the CBR rotor & then plunge an 8mm drill or eq right through)

You need:

Twinpot Caliper & pads.
CBR Rotors
M10 x 40mm (preferably fine thread but course will work) bolts with nuts for each side.

Fit all bolts with blue loctite.

[salty_monk]

Bill - you are out of PM space so I will leave this here just in case:

9505521420416306000713 - USPS

Says it arrived when I tracked it. In a small flat rate box.

Dan

[ecirmo]

Sent you a pm to order two brackets, think your box is full. How do you prefer to receive payment?

[salty_monk]

Sorry about that. A load of them hit my box all at once. Emptied out some space. Paypal works. I will send you a PM. Dan

[limeex2]

Salty, I'm rebuilding a set of ZG calipers. The parts fische shows that many seals are needed. By my count you should need 4 or 1 of each. Kawasaki says 8, 2 of each. What do you believe is correct? http://www.cheapcycleparts.com/oempa...4e/front-brake

[mmattockx]

Salty, I'm rebuilding a set of ZG calipers. The parts fische shows that many seals are needed. By my count you should need 4 or 1 of each. Kawasaki says 8, 2 of each. What do you believe is correct? http://www.cheapcycleparts.com/oempa...4e/front-brake

You need one each of 43049,43049-A, 43049-B and 43049-C per caliper. Two of them are seals and the other two are wipers.


Mark

[salty_monk]

It's been a while since I pulled a set apart. I think there is a sealing O ring inside the bore of each piston & a dust seal at the top of each piston.

I've not yet found a pair (especially of the RG ones as they tend to be newer) that need new seals.

New rubber bits related to the sliding assembly caused by brake fluid contamination swell or damage.

If you look at one of the K&L kits (which I wouldn't necessarily recommend I've read of mixed results with them) it shows the same as I remember...

http://www.ebay.com/itm/KAWASAKI-NEW-K-L-FRONT-BRAKE-CALIPER-REBUILD-KIT-w-PISTONS-32-1315-4116-4117-/182126415212?fits=Make%3AKawasaki%7CModel%3ANinja+250R&hash=item2a67948d6c:g:-54AAOSwInxXMjZW&vxp=mtr

[limeex2]

Thanks! Makes sense but doesn't make sense...Here's my issue. Good master, steel lines, rebuilt(not by me) calipers with K&L parts. With bike sitting(or driving)Initial lever pull travels what I feel is excessive and builds pressure as it goes towards bar, still braking well other than initial long travel. 2 quick stabs on lever and it is 2 finger great braking. The guys on the ZRX forum are fanatics about brakes and the consensus is caliper seals are rolling causing excess piston movement before sealing up and to rebuild with OEM and NEVER use aftermarket stuff for brakes. Thoughts before I spend time and $$$ ? Where is a good place for brake seal grease?

[mmattockx]

Here's my issue. Good master, steel lines, rebuilt(not by me) calipers with K&L parts. With bike sitting(or driving)Initial lever pull travels what I feel is excessive and builds pressure as it goes towards bar, still braking well other than initial long travel.

I have the same calipers (off a ZX6, tho) and also have very long lever travel before they bite. I rebuilt mine with OEM Kawasaki parts before installing them. Pumping the lever makes very little difference, it doesn't come back like after you have changed pads and have to push the pistons back out. It simply takes quite a bit of lever travel to get them engaged. I have just learned to live with it, the lever never comes back to the bar and won't trap fingers so I am not too worried overall. I do plan to pull my MC apart this winter and see what condition the stack is in just as a precaution, but there isn't anything that makes me think it isn't working correctly.


Mark

[salty_monk]

We did have one set on here years ago that had issues with the bleed valves not sealing properly.. that was causing something like the issue you are experiencing, got to be worth a check.

Different M/C's will feel different. If in doubt pick up an EX650 one & try it. They are newer & often available for $20-$30 on Ebay.

[Nickolarge]

I had a spare pair of CBR 900 296mm discs that intended to keep but a shortage of Christmas cash has made me put them on eBay.

I've started them at £20 in a 7 day auction ending next Sunday 18 Dec. Free postage to the UK.
20161211_155516.jpg

http://www.ebay.co.uk/itm/-/182385641494?

[Inazumarob]

Hi Guys, new to forum and have been following brake thread.
I just wanted to let you know that I managed to vastly upgrade the std brakes on my friends GSXR 1100 H (87 MODEL SLABSIDE) with the std 3 spoke wheels. I tried various ways, and eventually put a Nissin 17mm Master Cylinder off a Yamaha XJR 1200/1300/FZR 1000 on to the bike. All other things were std, apart from braided hoses and this greatly improved the performance by at least 50% with no feel or travel issues. The only thing I had to change was the Banjo Bolt, as the cylinder has different thread.
Regards Rob GSX 1100ET

[carusoat]

Salty,

I'm thinking about upgrading the brakes on my '78 skunk restoration. Could you tell me if these calipers and rotors will work?

http://www.ebay.com/itm/401205984388?_trksid=p2055119.m1438.l2649&ssPageNa me=STRK%3AMEBIDX%3AIT

http://www.ebay.com/itm/192033696479?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I think they're right but I just want to double check. If I go with these, do you have any kits available that aren't black?

thanks!

[Chuck78]

Yup, those appear to be the ones. I didn't know those calipers came on a 91 gsx1100g katana, however. Do the look identical to the GS500 and ninja 250 calipers? Short on time or else I'd compare myself. Pretty certain those will work though. They look to be identical as far as I can tell.

[carusoat]

They look the same as the ninja calipers to me. Somewhere in this thread Salty listed a bunch of bikes the twin pots come on and the gsx1100g was one.