GS1000 hydraulic clutch

[Flatline_Racing]

I am doing the same thing to my gs1400 with lockup. I got a ZX-14 radial master cylinder and a gsxr slave. I Will use the required gs750 parts which I already have as well. There was a good post on oldskool suzuki about it but they have been down for quite a while now.

I also plan to window my clutch cover which should be fairly easy because it is an RBD quick access.

Anyways, best of luck and I am sure everyone here would like to hear how it you make out.

[Agemax]

I am doing the same thing to my gs1400 with lockup. I got a ZX-14 radial master cylinder and a gsxr slave. I Will use the required gs750 parts which I already have as well. There was a good post on oldskool suzuki about it but they have been down for quite a while now.

I also plan to window my clutch cover which should be fairly easy because it is an RBD quick access.

Anyways, best of luck and I am sure everyone here would like to hear how it you make out.

hi there, at least i get some encouragement from one person!
have you got dimensions or a pic of the pushrod you have had made? i would like to compare it to some of the ideas i have in mind.

cheers.

[Flatline_Racing]

I will have to look on my computer when I get home from workto see if I save the pictures from the oldskool thread, but I recall that you can have a longer rod made so that there is about 1mm play between the rod and the piston in the slave cylinder to make sure that it isn't keeping the clutch from coming together properly. The other way is to turn a shoulder onto the stock 750 pusher rod and have an extension made that fits tightly over.

[Agemax]

I will have to look on my computer when I get home from workto see if I save the pictures from the oldskool thread, but I recall that you can have a longer rod made so that there is about 1mm play between the rod and the piston in the slave cylinder to make sure that it isn't keeping the clutch from coming together properly. The other way is to turn a shoulder onto the stock 750 pusher rod and have an extension made that fits tightly over.

cool, that is helpful thanks. i was thinking maybe having a new pushrod made complete.i suppose it depends on the distance the slave is away from the crankcases as to whether the 750 pushrod will be long enough or not....

[tatu]

Adrian, have you looked at Venhill? http://www.venhill.co.uk/Magura_Clutch_Conversion
That Duke slave you linked looked like it pushes direct onto the pushrod through the shaft, those Magura clutch conversions use a baby ram, I came across the Magura clutch stuff when I was looking for a pair of tiny rams to opperate a GT750 quad leading shoe project that I'm collecting bits for.

I think a nice light hydraulic clutch is a good idea, I would go for one on my bike but but it would no longer be original.

[Agemax]

Adrian, have you looked at Venhill? http://www.venhill.co.uk/Magura_Clutch_Conversion
That Duke slave you linked looked like it pushes direct onto the pushrod through the shaft, those Magura clutch conversions use a baby ram, I came across the Magura clutch stuff when I was looking for a pair of tiny rams to opperate a GT750 quad leading shoe project that I'm collecting bits for.

I think a nice light hydraulic clutch is a good idea, I would go for one on my bike but but it would no longer be original.

those Magura kits look nice but they dont do a direct bolt on for a GS1000 and the price of them is far beyond my reach at the moment.
i would rather have something that i have "built" myself than a "off the shelf" item.
thanks for the info anyway

[tatu]

I meant just the ram. Its supposed to clamp where the cable outer goes and actuates the existing lever.

[tatu]

Found it, looky.

http://www.venhill.co.uk/Downloads/HymecSelection.pdf

[Agemax]

Found it, looky.

http://www.venhill.co.uk/Downloads/HymecSelection.pdf

ah yes i see now thanks but it still rests on top of the crankcase and uses the original arm which defeats the whole object of my idea.

[Agemax]

ok, taking a closer look at mounting the slave cylinder you can see the sprocket and chain kinda gets in the way a bit.

the slave will have to sit about 40mm away from the crankcase to clear the chain which will leave a fair bit of the pushrod exposed and it will be very close to the chain.
i cannot fit a smaller sprocket as this will give me issues with the chain hitting the swingarm pivot.

any thoughts?

[tatu]

Looks like you're back to the spider?
It has never been a good design where everything gets flung off the chain onto the clutch pushrod.
you might be able to use that duke slave wired to pull rather than push, or you're back to the baby ram. which while it looks dull and unexciting is a very practical way to achieve a hydraulic clutch.

[Agemax]

Looks like you're back to the spider?
It has never been a good design where everything gets flung off the chain onto the clutch pushrod.
you might be able to use that duke slave wired to pull rather than push, or you're back to the baby ram. which while it looks dull and unexciting is a very practical way to achieve a hydraulic clutch.

how can you "wire" the Duke slave to pull, it is hydraulic?

[tatu]

how can you "wire" the Duke slave to pull, it is hydraulic?

No idea, see if they do anything on line or get one take it to bits and see what you can do.

[quexpress]

ok, taking a closer look at mounting the slave cylinder you can see the sprocket and chain kinda gets in the way a bit.

the slave will have to sit about 40mm away from the crankcase to clear the chain which will leave a fair bit of the pushrod exposed and it will be very close to the chain.
i cannot fit a smaller sprocket as this will give me issues with the chain hitting the swingarm pivot.

any thoughts?

Hi Adrian,
If you look at 1200 Bandits, etc., you will see that the slave is bolted on the outside of the sprocket cover.... and the pushrod is exposed.
If you wish, see what this guy did to protect the pushrod from dirt, etc.

http://chucksirois.com/TL1000/push-rod-seal/rod-seal.htm

Normand

[Agemax]

Hi Adrian,
If you look at 1200 Bandits, etc., you will see that the slave is bolted on the outside of the sprocket cover.... and the pushrod is exposed.
If you wish, see what this guy did to protect the pushrod from dirt, etc.

http://chucksirois.com/TL1000/push-rod-seal/rod-seal.htm

Normand

thanks Normand, that is a good idea. i still am positive about the conversion. i already have a plate over the sprocket, which is for the outrigger bearing. the plate and the bearing holder will need to be remade but that is not a problem.

my main concern is how much clearance there is between the chain and the pushrod. if i can get a mock up done then i can make sure it is all still worth carrying on......