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anybody know where I can pick up a new front master cylinder/brake lever for my 1980 GS550? Any ones from other bikes work? need to know since my master cylinder is bad and the cover screws are completely corroded in place and I can't even bleed it
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Single rotor?1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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If it's single rotor any other Jap bike with single rotor... if it's dual rotor then any other jap bike with 2 rotors....
I have a Kawasaki Dual rotor one or an early GSXR one also a 83GS750 one that you can have cheap.. all working.
Dan
1980 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/Comment
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mine's a single rotor........ so it's really that easy though??? all I need is a brake level/master cylinder from any bike with a single rotor?Comment
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And the same handlebar diameter.1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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what are the stock ones on a 550?... 7/8th"Comment
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Yes.......1980 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/Comment
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wow, that makes it so freakin easy.... to hell with cars, bikes are so much simplerComment
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Stock Piston bore on the single is 14mm. That's what you're looking for in order to get the same ratio of pull to brake on the lever.
Dan
1980 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/Comment
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Dan, if you have two extra, I could use one for a swap meet 81 450 I just bought. It is single caliper. How much? terryleeComment
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I'm glad someone asked bcuz I've been wondering the same thing. Has anyone replaced their old rectangle one with a newer cylinder shape? I like the look of it, but didn't know what all would be involved.Comment
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Mine are all 5/8 bore for dual rotors. That would cause less movement & harder pull on a single rotor setup or may not work at all.... You're welcome to try though...
Dan
1980 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/Comment
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It will work, and will provide a nice firm brake lever feel, but the hand pressure will be higher than stock.Originally posted by salty_monk View PostMine are all 5/8 bore for dual rotors. That would cause less movement & harder pull on a single rotor setup or may not work at all.... You're welcome to try though...
Dan
Regarding those thinking about getting a different master cylinder, check out the mirror mount threads assuming you want a mirror on that side that is. Some bikes like Yamaha's use different threading, for at least some year bikes that is, and many bikes with fairings don't have a threaded boss at all.
Good luckEd
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-ResurrectionComment
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