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Author Topic: okay....now what?  (Read 2266 times)

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traveler

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okay....now what?
« on: December 13, 2009, 12:15:47 PM »
Okay....now what?

(Regarding dual front disc brakes)

Since my bike is a '77 model 550K, and therefore both fork sliders are the same, what caliper is used for the left side to match the factory right side one?  It looks as though the GL1000 master cylinder is the way to go, and the brake lines and T are pretty straight forward....rotor is straightforward, and the speed sensor has to be modded....only thing left to figure out is the caliper.....

Please help!

~Joe
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Re: okay....now what?
« Reply #1 on: December 13, 2009, 02:56:13 PM »
Quote from: traveler on December 13, 2009, 12:15:47 PM
Okay....now what?

(Regarding dual front disc brakes)

Since my bike is a '77 model 550K, and therefore both fork sliders are the same, what caliper is used for the left side to match the factory right side one?  It looks as though the GL1000 master cylinder is the way to go, and the brake lines and T are pretty straight forward....rotor is straightforward, and the speed sensor has to be modded....only thing left to figure out is the caliper.....

Please help!

~Joe

You take a stocker apart, swap the halves on the center bracket, and screw it back together.

That's how the CB750 works, I think its the same for the 550s
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Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

traveler

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Re: okay....now what?
« Reply #2 on: December 13, 2009, 07:41:18 PM »
Okay...thanks.

(what do I swap it with????)

is a GL 1000 Master Cylinder necessary?

~Joe
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Re: okay....now what?
« Reply #3 on: December 13, 2009, 11:15:03 PM »
Quote from: traveler on December 13, 2009, 07:41:18 PM
Okay...thanks.

(what do I swap it with????)

is a GL 1000 Master Cylinder necessary?

~Joe
You swap it with itself. The half of the caliper that was on the inside of its bracket moves to the outside, the outside moves to the inside. Put the bolts back in. Voila, a caliper for the other side.
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Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

traveler

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Re: okay....now what?
« Reply #4 on: December 14, 2009, 05:29:22 AM »
Got it.

How about the master cylinder?

Thanks.

~Joe
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Offline Bonafide

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Re: okay....now what?
« Reply #5 on: December 14, 2009, 05:59:43 AM »
Quote from: traveler on December 14, 2009, 05:29:22 AM
Got it.

How about the master cylinder?

Thanks.

~Joe


I used a Nissin (5/8 bore) on both of mine. Works fantastic. Here's a pic for illustration.

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Re: okay....now what?
« Reply #6 on: December 14, 2009, 06:01:28 AM »
Quote from: traveler on December 14, 2009, 05:29:22 AM
Got it.

How about the master cylinder?

Thanks.

~Joe

You may want to see how your stock one feels first. But in theory you would need to upgrade to a MC that's pushing more fluid, as you have more fluid to be pushed. I've heard good reviews of the GL MC. But any from a dual disc bike may be an improvement.

Over the years, I just got some from a salvage yard with no ID and they worked fine.
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Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

traveler

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Re: okay....now what?
« Reply #7 on: December 14, 2009, 10:11:06 AM »
Thanks much.  Need to go shopping now....:D

Might need to find a 650 head and cylinders as well for future.... :-\

(Having visions of overbored 650 slugs and a ported 650 head, with CR Carbs and 4-1 someday MAYBE)

~Joe
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