« previous next »
Pages: 1 ... 12 13 [14] 15 16 ... 24   Go Down

Author Topic: Dry clutch on CB750  (Read 132987 times)

0 Members and 7 Guests are viewing this topic.

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: Dry clutch on CB750
« Reply #325 on: May 09, 2010, 01:07:44 PM »
Hey G,

Well that was worth the waiting isn't it? Well what we are going to do is to testrun it and in the meantime decide on the price.
There is some additional work involved like harden/hardanodising some surfaces. But it is getting there, like I promised.
Keep in touch, buddy.

Cheers, Rob
Logged
Better sorry for failing then for the lack of trying.

Offline bucky katt

  • Old Timer
  • ******
  • Posts: 4,564
  • i am a pastafarian!
    • facebook
Re: Dry clutch on CB750
« Reply #326 on: May 09, 2010, 02:01:54 PM »
damnit man, that sounds amazing! that made me smile almost as much as a live Grateful Dead performance does!
Logged
Of all God's creatures there is only one that cannot be made the slave of the lash. That one is the cat. If man could be crossed with the cat it would improve man, but it would deteriorate the cat.
Mark Twain - Notebook, 1894

Offline mick7504

  • Old Timer
  • ******
  • Posts: 3,740
Re: Dry clutch on CB750
« Reply #327 on: May 09, 2010, 08:25:51 PM »
Congratulations Rob.
That is an excellent achievment.
Mick
Logged
If I was you
I'd be worried about me.

Offline Terry in Australia

  • Really Old Timer ...
  • *******
  • Posts: 33,363
  • So, what do ya wanna talk about today?
Re: Dry clutch on CB750
« Reply #328 on: May 10, 2010, 02:10:28 AM »
Quote from: bear on May 08, 2010, 07:31:33 PM
Quote from: Terry in Australia on May 05, 2010, 06:32:36 PM
G'Day Rob, I'm buying one of Cycle X's lock up clutches for my 1060cc "Cobra" project, I wonder if you could adapt your dry clutch conversion to suit? It'd be pretty cool to have a dry lock up clutch! Cheers, Terry. ;D



Terry,
If your useing Barnett plates leave the washers off the bob weights to start with.

Cheers,
Brian

Hey thanks Brian, I'll keep that in mind! ;)

Rob, that looks bloody fantastic mate, well done! (where's the "two thumbs up" smiley?)  ;D
Logged
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline mick7504

  • Old Timer
  • ******
  • Posts: 3,740
Re: Dry clutch on CB750
« Reply #329 on: May 10, 2010, 05:42:51 AM »
Rob, that looks bloody fantastic mate, well done! (where's the "two thumbs up" smiley?)  ;D
[/quote]Here he is Terry.
A big one for Rob.

Logged
If I was you
I'd be worried about me.

Offline wannabridin

  • Patience made me a
  • Master
  • *****
  • Posts: 2,237
  • -Garrett
    • 1976 CB750K, under construction:
Re: Dry clutch on CB750
« Reply #330 on: May 10, 2010, 09:30:33 AM »
hey rob, could you give me/us some more information on your cable pull for the rear brake?  did you do this for weight savings?  i've seen some other threads about it, but no really conclusive reasoning for why it's done.  thanks! 
Logged
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline MCRider

  • Such is the life of a
  • Really Old Timer ...
  • *******
  • Posts: 14,376
  • Today's Lesson: One good turn deserves another.
Re: Dry clutch on CB750
« Reply #331 on: May 10, 2010, 09:50:22 AM »
Quote from: wannabridin on May 10, 2010, 09:30:33 AM
hey rob, could you give me/us some more information on your cable pull for the rear brake?  did you do this for weight savings?  i've seen some other threads about it, but no really conclusive reasoning for why it's done.  thanks! 
With a solid rod, the brake pressure inside the drum changes as the wheel goes up and down regardless of the fact that your foot pressure may be exactly the same. Say your leaned over and have your foot on the rear brake and go into a dip or hit a bump. As the wheel goes up, the rod effectively shortens and the brake gets tighter, may cause you to lose traction.

A cable or hydraulic system doesn't do that.
Logged
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."

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: Dry clutch on CB750
« Reply #332 on: May 10, 2010, 10:09:59 AM »
Hey G,

There you have it, thanks Ron, amongst other reasons like disliking the way it looks with a rod and no need to adjust when adjusting the chain or in case you're racing lengthen your wheelbase by/or change gearing.

Rob
Logged
Better sorry for failing then for the lack of trying.

Offline wannabridin

  • Patience made me a
  • Master
  • *****
  • Posts: 2,237
  • -Garrett
    • 1976 CB750K, under construction:
Re: Dry clutch on CB750
« Reply #333 on: May 10, 2010, 10:37:58 AM »
thanks guys!!  any insight as to where you got the pieces for the kit?  what you did to rig it up?  thanks again!!  now go get some miles on the clutch so you can make me one!!   ;D ;D
Logged
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: Dry clutch on CB750
« Reply #334 on: May 10, 2010, 10:45:58 AM »
All homemade!
Logged
Better sorry for failing then for the lack of trying.

Offline wannabridin

  • Patience made me a
  • Master
  • *****
  • Posts: 2,237
  • -Garrett
    • 1976 CB750K, under construction:
Re: Dry clutch on CB750
« Reply #335 on: May 10, 2010, 12:03:05 PM »
figures...  did you weld on a "ring" or "collar" to the rear brake drum to hold the outer sleeve of the cable? 
Logged
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: Dry clutch on CB750
« Reply #336 on: May 10, 2010, 02:56:20 PM »

Welded a collar on the backplate.
Logged
Better sorry for failing then for the lack of trying.

Offline CBJoe

  • Master
  • *****
  • Posts: 1,976
Re: Dry clutch on CB750
« Reply #337 on: May 10, 2010, 03:04:32 PM »
I think that Paulages used a cable guide from a CB350 (or CB350T) Hub....
Logged
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: Dry clutch on CB750
« Reply #338 on: May 11, 2010, 12:27:54 AM »
While the clutch is running in the CR836, finished the 'road-engine'. Honed the cylinders slightly, while they where well within spec, and cleaned the pistons and mounted them with new rings. New primary's and stronger camchain and put in a 41a webcam. So this can go into the rolling chassis. Clean up the carb's and put on some nice stacks.

« Last Edit: May 12, 2010, 07:13:28 AM by voxonda »
Logged
Better sorry for failing then for the lack of trying.

Offline Bill/BentON Racing

  • Really Old Timer ...
  • *******
  • Posts: 6,725
  • Ex Honda Service Manager, Cert. Honda Tech - Racer
    • BentON Racing
Re: Dry clutch on CB750
« Reply #339 on: May 11, 2010, 04:24:34 AM »
That's good,but what about after lunch?  ;D ;D ;D....you one busy man,Great Work and Thanks,Bill
Logged
BentON Racing Website
OEM Parts | Service | Custom Builds
BentON Racing Facebook
Over 35 years of experience working on vintage motorcycles, with a speciality in Honda SOHC/4 with a focus on the CB750 and other models as well from 1966 - 1985.
______________________________________
1993 HRC RS125 | 1984 NS400R | 1974 Honda CB750/836cc (Calendar Girl) | 1972 CB 500/550 Yoshi Kitted 590cc | 1965 Honda CB450 Black Bomber | 1972 Suzuki T350 | 1973 88cc | Z50/Falcons Pit Bike | 1967 CA100| 1974 CB350 (400F motor)...and more.
______________________________________
See our latest build 'Captain Marvel' CLICK HERE

Offline Sam Green Racing

  • Moderator
  • Really Old Timer ...
  • *****
  • Posts: 16,069
  • I REALLY? hate black rims.
Re: Dry clutch on CB750
« Reply #340 on: May 11, 2010, 04:29:27 AM »
you're up early Billy, you busy too?

Sam. ;)
Logged
C95 sprint bike.
CB95 hybrid race bike
CB95 race bike
CB92
RS 175. sprint/land speed bike
JMR Racing CB750A street ET drag bike

Offline wannabridin

  • Patience made me a
  • Master
  • *****
  • Posts: 2,237
  • -Garrett
    • 1976 CB750K, under construction:
Re: Dry clutch on CB750
« Reply #341 on: May 11, 2010, 06:08:09 AM »
awesome rob!!  can't wait to read about how well it will do!  nice work! 

and i remember the discussion about the 350 hub, but i don't think it was a direct swap, so i'm not 100%.  thanks for the picture and the information on your setup though!
Logged
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline BLUE71TURBO

  • Master
  • *****
  • Posts: 1,849
Re: Dry clutch on CB750
« Reply #342 on: May 11, 2010, 09:00:31 PM »
Quote from: Terry in Australia on May 05, 2010, 06:32:36 PM
G'Day Rob, I'm buying one of Cycle X's lock up clutches for my 1060cc "Cobra" project, I wonder if you could adapt your dry clutch conversion to suit? It'd be pretty cool to have a dry lock up clutch! Cheers, Terry. ;D



  I have 1 question about lockup clutches, are they any good for the street ?  It seems that I have only seen them on dragbikes. 
Logged
Remember; Before you can be old and wise, you must first be young and stupid !

Offline Sam Green Racing

  • Moderator
  • Really Old Timer ...
  • *****
  • Posts: 16,069
  • I REALLY? hate black rims.
Re: Dry clutch on CB750
« Reply #343 on: May 11, 2010, 09:35:25 PM »
Quote from: SamCB750A on May 05, 2010, 10:25:16 PM
Damn Terry :o :o :o you taking up drag racing. ;D ;D ;D ;D

Sam. ;)

 ::) ;D :D ;)
Logged
C95 sprint bike.
CB95 hybrid race bike
CB95 race bike
CB92
RS 175. sprint/land speed bike
JMR Racing CB750A street ET drag bike

Offline Terry in Australia

  • Really Old Timer ...
  • *******
  • Posts: 33,363
  • So, what do ya wanna talk about today?
Re: Dry clutch on CB750
« Reply #344 on: May 15, 2010, 06:12:49 PM »
Quote from: BLUE71TURBO on May 11, 2010, 09:00:31 PM
Quote from: Terry in Australia on May 05, 2010, 06:32:36 PM
G'Day Rob, I'm buying one of Cycle X's lock up clutches for my 1060cc "Cobra" project, I wonder if you could adapt your dry clutch conversion to suit? It'd be pretty cool to have a dry lock up clutch! Cheers, Terry. ;D



  I have 1 question about lockup clutches, are they any good for the street ?  It seems that I have only seen them on dragbikes. 

Well I ordered it on Thursday mate, so I'll let you know. One of my other infatuations is big GS Suzuki's, and there are a few members on "The GS Resources" site who are running lockup clutches on their road bikes, with good results. I'm installing it on my K1 with the K6 836cc race engine with the horrible Barnett clutch, so as I said, I'll let you know! ;D
Logged
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline bear

  • Vale Bill McIntosh ......"illegitimi non carborundum"
  • Old Timer
  • ******
  • Posts: 2,575
  • Leeton in Australia
Re: Dry clutch on CB750
« Reply #345 on: May 15, 2010, 08:17:17 PM »
Quote from: Terry in Australia on May 15, 2010, 06:12:49 PM
Quote from: BLUE71TURBO on May 11, 2010, 09:00:31 PM
Quote from: Terry in Australia on May 05, 2010, 06:32:36 PM
G'Day Rob, I'm buying one of Cycle X's lock up clutches for my 1060cc "Cobra" project, I wonder if you could adapt your dry clutch conversion to suit? It'd be pretty cool to have a dry lock up clutch! Cheers, Terry. ;D



  I have 1 question about lockup clutches, are they any good for the street ?  It seems that I have only seen them on dragbikes. 

Well I ordered it on Thursday mate, so I'll let you know. One of my other infatuations is big GS Suzuki's, and there are a few members on "The GS Resources" site who are running lockup clutches on their road bikes, with good results. I'm installing it on my K1 with the K6 836cc race engine with the horrible Barnett clutch, so as I said, I'll let you know! ;D


I ran a locker in all my speedway chairs, don't see a problem running them in a street bike.
They can bite you on the arse if your not carfull though.
I wouldn't run a lot of weight on the cams in road bike.

Cheers,
Brian
Logged
The older I get the faster I was.

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: Dry clutch on CB750
« Reply #346 on: May 16, 2010, 02:14:40 AM »
Quote from: Terry in Australia on May 15, 2010, 06:12:49 PM
Quote from: BLUE71TURBO on May 11, 2010, 09:00:31 PM
Quote from: Terry in Australia on May 05, 2010, 06:32:36 PM
G'Day Rob, I'm buying one of Cycle X's lock up clutches for my 1060cc "Cobra" project, I wonder if you could adapt your dry clutch conversion to suit? It'd be pretty cool to have a dry lock up clutch! Cheers, Terry. ;D



  I have 1 question about lockup clutches, are they any good for the street ?  It seems that I have only seen them on dragbikes. 

Well I ordered it on Thursday mate, so I'll let you know. One of my other infatuations is big GS Suzuki's, and there are a few members on "The GS Resources" site who are running lockup clutches on their road bikes, with good results. I'm installing it on my K1 with the K6 836cc race engine with the horrible Barnett clutch, so as I said, I'll let you know! ;D

Yes Terry, please keep us informed. Wonder if you'll need a lock up on our setup.

Cheers, Rob
Logged
Better sorry for failing then for the lack of trying.

Offline Terry in Australia

  • Really Old Timer ...
  • *******
  • Posts: 33,363
  • So, what do ya wanna talk about today?
Re: Dry clutch on CB750
« Reply #347 on: May 16, 2010, 02:21:33 AM »
Quote from: voxonda on May 16, 2010, 02:14:40 AM
Quote from: Terry in Australia on May 15, 2010, 06:12:49 PM
Quote from: BLUE71TURBO on May 11, 2010, 09:00:31 PM
Quote from: Terry in Australia on May 05, 2010, 06:32:36 PM
G'Day Rob, I'm buying one of Cycle X's lock up clutches for my 1060cc "Cobra" project, I wonder if you could adapt your dry clutch conversion to suit? It'd be pretty cool to have a dry lock up clutch! Cheers, Terry. ;D



  I have 1 question about lockup clutches, are they any good for the street ?  It seems that I have only seen them on dragbikes. 

Well I ordered it on Thursday mate, so I'll let you know. One of my other infatuations is big GS Suzuki's, and there are a few members on "The GS Resources" site who are running lockup clutches on their road bikes, with good results. I'm installing it on my K1 with the K6 836cc race engine with the horrible Barnett clutch, so as I said, I'll let you know! ;D

Yes Terry, please keep us informed. Wonder if you'll need a lock up on our setup.

Cheers, Rob

Thanks Rob, I'm looking forward to you taking orders for your dry clutches, so I can get one for my gold K2/F2. Hey, does the dry clutch use normal CB750 clutch plates (OEM or aftermarket) or do you need special plates now that it's not oil bathed? Cheers, Terry. ;D
Logged
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: Dry clutch on CB750
« Reply #348 on: May 16, 2010, 04:47:28 AM »

Thanks Rob, I'm looking forward to you taking orders for your dry clutches, so I can get one for my gold K2/F2. Hey, does the dry clutch use normal CB750 clutch plates (OEM or aftermarket) or do you need special plates now that it's not oil bathed? Cheers, Terry. ;D
[/quote]

Terry,

No, the kit will be provided with a complete set of plates with material like Ducati uses on their dry clutches. The diametre of the plates is smaller then OEM in order to create room for the outer basket.

Rob
Logged
Better sorry for failing then for the lack of trying.

Offline Retro Rocket

  • Eggs are hard due too a
  • Really Old Timer ...
  • *******
  • Posts: 19,279
  • ROCK & ROLL
Re: Dry clutch on CB750
« Reply #349 on: May 16, 2010, 05:03:25 AM »
Any idea on a price yet Rob?  Have you giving it a good run yet? I am really liking what you are doing here mate.... ;)

Mick
Logged
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.
Pages: 1 ... 12 13 [14] 15 16 ... 24   Go Up
« previous next »