Author Topic: What did you do to your bike today ?  (Read 3205876 times)

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Offline ekpent

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Re: What did you do to your bike today ?
« Reply #17100 on: April 05, 2014, 04:45:29 PM »
Those blocks would be best on a 750. As MC noted those holes in the back has a bolt that goes through and attaches to this on a 750 swingarm, an axle stop.

Offline MCRider

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Re: What did you do to your bike today ?
« Reply #17101 on: April 05, 2014, 04:50:55 PM »
...I just kicked em out, here is a picture before and after.
Your block is a different design v the OP's.

I both cases the rear hld down blt is required. You have yours. I think the OP's bike is a 500/550, with a 750 part on it. There is no place for that bolt to go.
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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 Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17102 on: April 05, 2014, 05:03:25 PM »
I bought it from a guy on the forum who had it on a 750. Ive got a 78 750k. What am I missing and how can I fix it of anything? what is in danger of being damaged?

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Stev-o

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Re: What did you do to your bike today ?
« Reply #17103 on: April 05, 2014, 05:09:42 PM »
what is in danger of being damaged?





Only your body, no big deal
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17104 on: April 05, 2014, 05:13:04 PM »
Well I got a hot body so I dont want to screw that up. How can I fix it

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline MCRider

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Re: What did you do to your bike today ?
« Reply #17105 on: April 05, 2014, 06:09:30 PM »
Well I got a hot body so I dont want to screw that up. How can I fix it

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That probably explains what I'm seeing. The tails of your swingarm (78) must be different than a pre (likely) 77.  I mistook it for a 500/550.

AS ekpent shows, you should have those chain adjuster blocks. IF you don't, those lowering blocks won't work on your bike. The tail HAS to be held down by a bolt thru the block and thru the swingarm tails and that block threaded into the botton tail of the swingarm. All parts you don't have.

If you don't tie that block down, it will rotate up and down and not sure of the exact conseqences, but I wouldn't ride it.   :(

The fix would be a pre-77 swingarm, maybe.
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 Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17106 on: April 05, 2014, 06:12:12 PM »
Thats a downer.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17107 on: April 05, 2014, 06:20:54 PM »
What if I fabbed a piece of metal that connected the axel istelf to where the shock attaches to the end of the block? That would get the diseried effect, correct?

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Stev-o

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Re: What did you do to your bike today ?
« Reply #17108 on: April 05, 2014, 06:24:49 PM »
What if I fabbed a piece of metal that connected the axel istelf to where the shock attaches to the end of the block?


How 'bout if you just take it off?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17109 on: April 05, 2014, 06:37:51 PM »
Anybody want a pair of lowering blocks? :) I will get the right ones

 http://m.ebay.com/itm?itemId=161200669566

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17110 on: April 05, 2014, 06:55:42 PM »
So I guess I did nothing to my bike today!!

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline MCRider

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Re: What did you do to your bike today ?
« Reply #17111 on: April 05, 2014, 07:32:25 PM »
What if I fabbed a piece of metal that connected the axel istelf to where the shock attaches to the end of the block? That would get the diseried effect, correct?

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Yes I think so.
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 MCRider

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Re: What did you do to your bike today ?
« Reply #17112 on: April 05, 2014, 07:34:34 PM »
Anybody want a pair of lowering blocks? :) I will get the right ones

 http://m.ebay.com/itm?itemId=161200669566

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I can't picture how those lash up, but according to their title, that's what you need.

The ones you have are sellable.
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 Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17113 on: April 05, 2014, 08:05:49 PM »
...and now I curse at it. After lifting up the tank, heres what I find



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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline MoMo

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Re: What did you do to your bike today ?
« Reply #17114 on: April 05, 2014, 08:08:43 PM »
...and now I curse at it. After lifting up the tank, heres what I find



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not good ??? ???

Offline Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17115 on: April 05, 2014, 08:12:10 PM »
I dont know where im going with this now.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline edwardmorris

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Re: What did you do to your bike today ?
« Reply #17116 on: April 05, 2014, 08:27:02 PM »
I dont know where im going with this now.

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I was in this exact situation (cut frame) and Gordon East/Ilbikes here saved my project. He makes and sells the Gordon Frame Kit, and for mine, he also arranged for the missing tubing.



That would be a good way to go, just my 2c.

Offline MCRider

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Re: What did you do to your bike today ?
« Reply #17117 on: April 05, 2014, 08:33:09 PM »
I dont know where im going with this now.

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Cutting the frame tubes out, for access to the engine without removing it, was a common practice back when.  OFten such bikes went on to live productive ives sans tubes.

Its still a popular thing, though most contempory cuts are now patched back with a "frame tube kit" of various designs. Unfortunatey, your tubes are cut to the quick, there's not enough tube left to install a kit.  But a skilled machinist/welder can fix that back toot sweet.  You may have to strip things off to get room to maneuver.
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 Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17118 on: April 05, 2014, 08:35:19 PM »
Is the danger of those tubes cut if you get hit?

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline bjbuchanan

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Re: What did you do to your bike today ?
« Reply #17119 on: April 05, 2014, 08:46:10 PM »
Pretty sure if you get hit you are f$cked anyway lol

In all seriousness, its a rigidity issue. The bike will work just fine for the most part but its better with the tubes
The dirty girl-1976 cb750k, Ebay 836, Tracy bodykit
Round top carbs w/ 38 pilots, middle needle position, airscrew 7/8ths out, 122 main jet
Stock airbox w/ drop in K&N, Hooker 4-1

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Offline edwardmorris

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Re: What did you do to your bike today ?
« Reply #17120 on: April 05, 2014, 09:04:24 PM »
I dont know where im going with this now.

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Cutting the frame tubes out, for access to the engine without removing it, was a common practice back when.  OFten such bikes went on to live productive ives sans tubes.

Its still a popular thing, though most contempory cuts are now patched back with a "frame tube kit" of various designs. Unfortunatey, your tubes are cut to the quick, there's not enough tube left to install a kit.  But a skilled machinist/welder can fix that back toot sweet.  You may have to strip things off to get room to maneuver.
Mine were cut pretty badly too, both front and rear, but fortunately I know an exceptional welder who was able to make it work

Front


Rear


Kit installed

Offline Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17121 on: April 05, 2014, 09:16:34 PM »
I may ride it as is (since I pretty much drive to/ from work) and find a welder to close it up

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline edwardmorris

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Re: What did you do to your bike today ?
« Reply #17122 on: April 05, 2014, 09:21:58 PM »
I may ride it as is (since I pretty much drive to/ from work) and find a welder to close it up

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I can't recall exactly but missing tubes cause some kinda frame warping on high speed cornering and such, but I'll let the experts weigh in on that.

Offline grcamna2

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Re: What did you do to your bike today ?
« Reply #17123 on: April 05, 2014, 09:56:16 PM »
Pretty sure if you get hit you are f$cked anyway lol

In all seriousness, its a rigidity issue. The bike will work just fine for the most part but its better with the tubes

+ 10 on making the frame as Solid and stable as you can;these frames need all the Rigidity they can get !
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Sdsbassist

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Re: What did you do to your bike today ?
« Reply #17124 on: April 05, 2014, 10:00:27 PM »
Im planning to ride as is and find a splice kit to make top end jobs easier.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"