Billy's 78 GS1000 mods

[Billyboy]

OK, Thanks.
I'm not going to go looking for an E model left fork just yet. I'll run with one smaller disc.

[UncleMike]

Be careful. That's going to throw things off. I wouldn't recommend it. I've got a 1000 front end I'm looking to sell, actually. It's got everything on it from the top on down except brakelines.

[Billyboy]

How would that throw things off? It's still just a spinning wheel. The principles of bkaking are the same, aren't they?

I'm not made of money, and I really only need a left E model fork and a disc.

[UncleMike]

You've got uneven weight on either side of a tremendous centrifugal force. Might make the bike pull to one side when braking, I would think.

[Billyboy]

Is that so much different that running a single disc? I'd be inclined to think that it would even it out a bit.

[UncleMike]

You're probably right. Like I said, I'm no expert.

[fatkid89704]

billy if you are interested i have a 78 1000 e set of forks the calipers that go with them the tripple tree and the front rim.all you would have to buy is a set of front disks and i think renobruce has a set he would sell fairly cheap.these forks may need seals but they are in good shape with no pitting that i could see.the stuff is a little dirty from sitting around but in good shape.if you want some pics let me know.talk to you soon.have a great week.

[Tom MLC]

Billy, sounds like lots of folks selling parts. Here's my .02 cents. I have the mate to that fork still in the garage. And I have "E" rotors and calipers (they're red, though).

Lots of options for you. Good luck.

[Billyboy]

Thanks for the offers guys.

I changed the right side disc to my spare rear disc, (which is the same as the E model) and everything bolted right up.

It's still spongy as can be. I'll bleed it again tonight.

[KGB]

Thanks for the offers guys.

I changed the right side disc to my spare rear disc, (which is the same as the E model) and everything bolted right up.

It's still spongy as can be. I'll bleed it again tonight.

They are the same size ? Same diameter?

And it being spongy, try re seating the pads in the carrier, make sure the backing is clean.

[Billyboy]

No, they're different sizes.
Thanks for the tips. I'll try that.

[KEITH KRAUSE]

Uh, did I read things right? You're swapping rear and front rotors? I don't believe the two are the same thickness and/or diameter. If so, you can't do that and expect the brakes to operate correctly.

[Billyboy]

The GS1000E rotors are all the same. 280mm.
The GS1000C have different dia. rotors. Front is bigger. Rear is 280mm.

All are 6mm thick.

I have 1 large disc and 1 small disc on the front, and 1 plain old rear on the back.

[justin caise]

Guys, the slotted rotors... won't work with the stock calipers.

Thanks Tom. I needed to know that. I didn't know that I needed to know that, but i needed to know that. I was planning to swipe the slotteds from my 750 and just chuckem into the 1000. Now I see I'll have to do a thorough investigation; size, thickness, caliper fitment, cool factor, etc. Ooo, I'd better check the rear too. Sorry for the highjack.
All this excessive web surfing and info loading is gonna pay off - I'll make sure of it. Even if it's just so's I can sit in the rocker on the front porch and tell my childrens children all of the wonderful little details how to repair/modify an old dinosaur.

[KEITH KRAUSE]

The GS1000E rotors are all the same. 280mm.
The GS1000C have different dia. rotors. Front is bigger. Rear is 280mm.

All are 6mm thick.

I have 1 large disc and 1 small disc on the front, and 1 plain old rear on the back.

On E models, the rear is much thicker than the fronts.