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Twinpot Brake upgrade on 78 Skunk
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Suzuki_Don
Originally posted by jskellington View Post
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
900RR rotors tend to be rarer & more expensive over here in either size.
Guess they didn't sell so many. They still need a spacer to work with the setup Jack has I think as the offset is still not right far as I can tell.
Dan1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Here's a photo of the twinpot mod, Salty style. Rebuilt the calipers, which were in good shape to begin with. New EBC brake pads and a Kawasaki ZX6 master cylinder combined with Russell steel-braided brake lines. Result after about 50 miles of driving: huge improvement in braking power and control at the lever.
I learned to ride my first heavy bike (a 1979 GS750) on the streets of San Francisco in the mid 1980s. My most frightening mistakes always involved coming downhill, typically with a passenger, and braking too late at intersections. The moral of the story is, of course, think ahead. And get some better brakes.
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Tom MLC
Looks good Jack. I can't wait to finish up mine. Still waiting on those rotors...expecting them on Friday, and the parts order for the caliper re-build...no delivery date yet!?!
In the mean time I'm cleaning up the caliper bodies for their new pait job. Red is my favorite color!
Hey! I might take you up on that colortune party. I only have one plug so I have to do them individually. Do you also have the plugs for the GS1100/1150? Our friend Ken (jadesystem) might like to join us. And do you have a Carbtune syncronizer? I can bring mine to the party!
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
Looks good Jack. One of the things that prompted me to do this mod was how scary the stock brakes were (mine were in good condition with decent pads etc) coming downhill with the Mrs on the back.... I felt like I was at times approaching the limits of how much squeeze I could provide at the lever.
I guess if you're a much bigger guy than me maybe you would be able to put in my pressure but I'm not a complete weakling
Dan1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Yeah, I can remember a few times standing on the rear brake while bending the handlebars to get leverage on the front lever . . . I was younger and stupider then, that's for sure, but with loads of adrenaline on tap, which is probably the only reason I'm still walking.
Tom, I got the Carbtune and the "professional" Colortune, both fresh outta Dublin, UK. If memory serves, the four plugs are 14mm thread. Do the 1100/1150's have a different thread, or are the plugs more deeply recessed?
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jacora
Originally posted by salty_monk View PostJust some pics of the latest on the skunk... Soon to be replicated by one Mr Tom MLC (no doubt in red!) & Mr JSkellington.
Dan
So, there's no need of four or six pots???
I have a GS1100E, which is your advice??
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
You *should* be able to run the exact same system but so far nobody has fitted it to the 1100.
If you want to be the first I will refund you (minus postage) if it doesn't work out. We measured the fork & it seems that everything is in the same place so I'm pretty confident it would work....
Dan1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Tom MLC
Dan & Jacora (and anyone else lurking). The kit should fit the forks on the '83 GS1100 if it's the one with anti-dives. But it WILL NOT fit the '80/81 GS1100. The bolt spacing is about 1/4 inch wider on that one.
But wait! Dan, didn't you build the brackets with an oblong hole at one of the mount points? Hey, maybe it will fit after all. I'll hafta size it up on my 1100.
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
I built it with a little bit of additional "tolerance" as I wasn't sure how good Suzuki's was from year to year....
It might well fit or if not then you could maybe open it up a little more to make it fit. There should be no real forces in the up/down plane as the caliper is basically being pulled through the forks from the back (that's the force acting on it) so all the force is shear in the opposite plane pivoted around the top bolt if my thinking is correct.
Dan1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Tom MLC
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imlost
interested in this mod
salty monk you have pm
"To fit this swap.. you just need to get a kit from me, some CBR F3 Rotors & Some Kawasaki twinpot pistons."
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
You have one back... you need a lot more than that as you have a 550E. You need to upgrade to a dual front end first before you can do this.
If you are willing to mess around with making your own bracket you may be able to use a CBR 900RR Rotor & 1 Kawasaki twinpot caliper. That will give you a decent setup. It's been done before by "Suzuki-Don".
Dan1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Duke900
Hi,
I have been searching for a brake upgrade solution for ages.
I have a Katana. It is was a 750 but is now 1135 and is standard other wise.
I am currently fitting wire rims:
18inch front 3.5 wide 120/70 tyre
17inch rear 5.0 wide 170/60 tyre
GS Hubs
GSXR sproket carrier to provide chain clearance
GPZ off set front sproket
So I would like to fit brakes which work... I have read quite a lot regarding this upgrade and are truly impressed with what you all have achived.
So I need the following
Kawasaki calipers, going with the later model 650R.
Honda 900RR rotors
mounting kit from Salty Monk
Can anyone see any issuies here?
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Forum LongTimerGSResource Superstar
Past Site Supporter
Super Site Supporter- Mar 2006
- 35619
- Torrance, CA
You might want to talk to Salty, or search on the various brake threads he has here to get an idea of which calipers you need. Same for the rotors, you need a specific diameter.
Good luck.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection
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