Author Topic: CB750 K2 restomod to "originalish" condition // Forkbrace added ! ! !  (Read 57785 times)

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Offline iron_worker

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Well it is a good point they raise that if the bikes runs and idles well then there is not much point in cleaning the carbs. However, it is likely that at some point you will probably need to learn how to do it.

When I did my first rebuild I studied and followed this guide:

http://www.salocal.com/sohc/tech/carb/carb.htm

It's very thorough and easy to understand I thought.

IW

Offline cheftuskey121

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Great work viktor. I second that link IW posted. It's the one I followed and it helped me well. At this point I have replaced every single thing in the carbs with oem stuff. Pricey but peace of mind they are rebuilt! That's an excellent guide to follow

Offline Viktor.J

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Well it is a good point they raise that if the bikes runs and idles well then there is not much point in cleaning the carbs. However, it is likely that at some point you will probably need to learn how to do it.

When I did my first rebuild I studied and followed this guide:

http://www.salocal.com/sohc/tech/carb/carb.htm

It's very thorough and easy to understand I thought.

IW

yeah it was quite throughout "walk through" :) On one point im afraid to take the carbs apart because of A: Im sure I'll find out that something is broken. B: I can't afford to fix it. :) But next time I'll take some time and consideration and then we will see what happens. :)


Great work viktor. I second that link IW posted. It's the one I followed and it helped me well. At this point I have replaced every single thing in the carbs with oem stuff. Pricey but peace of mind they are rebuilt! That's an excellent guide to follow

Oh man, that must have cost you a fortune?  :'( How long time had your bike been siting before your restoration?



Thanks for your input guys!!
Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Viktor.J

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Ok, since I hadn't got the top tree last weekend I figured there wasn't any reason for me to go home and continue with the bike.
So I've done what I could...... siting in front of the computer and ordering stuff from ebay.

Tomorrow I'll go home and the plan is.
Friday & saturday - Assembly
Sunday - Make it work as good as possible
Monday - Leave it to a Local Honda shop, to sync the carbs, adjust the carbs and other "fine tuning" !

I've ordered and got a cb750 76 top tree.

New Renthal Road race grips. The real Daytona CR750 that my friend have had similar grips :) Kind of think they look fast and clean :D


A steering lock

Black Oberon bar end mirrors, they are a little pricey but everyone says the quality is much better and I kind of like Quality and 20$ here or there.


NHK steering damper. Don't know which model and seller said 520mm !?!? that seems pretty long :) but Ill guess I can measure it when it arrives and try to find which model it is.



I gave the broken unicorn top tree to a friend who's a good aluminium welder. He welds the aluminium frame on the universitys racecar so I figure he must be good :D
I machined a "fake fork leg" and he then cut out and welded, it looks en feels good.




Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Stev-o

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University race car?  We need pics of that.   "They" say you shouldvweld that triple, but I don't see a problem as long as you keep it below 200 kph.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Viktor.J

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University race car?  We need pics of that.   "They" say you shouldvweld that triple, but I don't see a problem as long as you keep it below 200 kph.

Well that depends on what you define as a "race car" :D but it is a car built for racing on the track ! haha

But you can read more about the car(s) here http://www.luracing.se/

Well it's welded now, better safe then sorry I guess :)
Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Viktor.J

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This weekend I tried to assembly the bike. The fact of having "2" different lokations for your parts finally starts to show. I lost the bolts to the under tree :( so That's a setback and needs to be found/ordered somewhere. And overall some of screw and bolts are missing which takes a lot of extra time to compensate.

 Tomorrow I will try to finish, whats left is Electrics, Clutch and throttle cables, assembly the airbox, bleed the front brakes and some minor stuff..
I fear for the airbox and electrics and frankly I'm starting to get fed up with the bike. The spring is here and this day i Saw at least 40 bikes. While all I find is bended bolts and rounded heads :( And the whire harnes is a joke.. would like to change everything but don,  have the time nor the money.... Regardless on how much I can complete tomorrow at monday I will take the bike to a honda-shop and let him do the rest. I simply don't have time, power or interest to put more time in the garage for now. I want to ride :D

Front end on. I think it look really good !


Carbs, handlebars and some other things on


Almost as she sits now
Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Stev-o

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Well, that is def a race car! And LUR6 will have a Honda motor, cool.

I can sense your frustration, it happens.  That why it it good to have 2 bikes (or 5!), so a rider is always available.  You'll get there.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Viktor.J

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Well, that is def a race car! And LUR6 will have a Honda motor, cool.

I can sense your frustration, it happens.  That why it it good to have 2 bikes (or 5!), so a rider is always available.  You'll get there.

Yeah, I bet it's really fun to drive !

Hm, yes and on someway I think it's "harder" to work and try to get old things to work. And by that I mean old screws,bolt, carburator rubber etc. The stupid air box took me like 2 hours with a heating gun to get back on...
Whish I had another bike, then I wouldn't be so desperate to fix this one .... My next bike are going to be a Ducati sport classic without a doubt :)


Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Viktor.J

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I continued with the assembly of the bike and can't say much about that.
The status for now is, pretty much everything is assemblied.

What to do tomorrow is:
- fix the electrics
- Fill in new oil in engine
- Fill with new fork oil
- Bleed the brakes
- mount the tank, covers and seat.
- get the basterd to start !


A nice picture after the Airbox and carbs was installed !



As she sits tonight. almost fully assemblied.
Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline iron_worker

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You're getting so close and she is looking good! Get that baby fired up!

IW

Offline Viktor.J

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!
« Reply #161 on: April 22, 2013, 11:37:13 PM »
You're getting so close and she is looking good! Get that baby fired up!

IW

Yup :D

Yesterday I did the rest, bleeded the brakes, filled with oil in engine and fork oil. Then tried to start it.....

First attempt...... startermotor and a little fire....

Second atempt.... starter motor ... VROOOM ! HAHA you got to love hondas :D I let the bike run for a 5 minutes or so then drove it down to a local honda shop. So he can do some last touches and inspections. TIming, carburetors, etc.

And here's where she sits now.

Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline edhaeuser

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #162 on: April 23, 2013, 04:44:57 AM »
So awesome you got it running.!  The bike looks really nice!

Ed

Offline Leafshutter

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #163 on: April 23, 2013, 05:33:30 AM »

Great work and nice bike Victor!

Got mine running a couple of days ago, it´s a gooood feeling!

Johann from Småland

Offline Stev-o

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #164 on: April 23, 2013, 05:33:59 AM »
Fantastic!  I will nominate your bike for BOTM next month.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline iron_worker

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #165 on: April 23, 2013, 08:12:34 AM »
Really reminds me of what my bike was like with the solid red tank. Though yours is in much better shape. ha

IW

Offline brandEn

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #166 on: April 23, 2013, 08:18:41 AM »
Your bike looks great. Nice Job!

Offline cheftuskey121

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #167 on: April 23, 2013, 10:52:37 AM »
So awesome man. Looks great viktor. I hope to be hot on your tails very soon afte this 80 work week is over!

Offline tango911

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #168 on: April 23, 2013, 11:55:31 AM »
Nicely done!!!


How would you like a set of stripes for your tank?  $30 shipped.  i wont spam your thread with pics unless your interested.

CURRENT STABLE:
1969 Honda Dream 305 (black)
1974 Mach III kawi 500 smoker
K2 (project)
K2 Original fixer up
K0 original fixer up
2006 CRF250R

Offline Viktor.J

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #169 on: April 24, 2013, 01:50:26 AM »
So awesome you got it running.!  The bike looks really nice!

Ed

Thanks Ed ! I look at you project all the time, alltough I often don't have anything to constructive to add :D



Great work and nice bike Victor!

Got mine running a couple of days ago, it´s a gooood feeling!

Johann from Småland

Great, what Kind of bike do you have ? Are you a member of classic honda club sweden ?
I Come from Blekinge originally, where in Småland do you live ?

Fantastic!  I will nominate your bike for BOTM next month.

Thanks steve !!! But you'll have to wait until it's fully done and cleaned :D

Really reminds me of what my bike was like with the solid red tank. Though yours is in much better shape. ha

IW

Thanks IW, Yeah the solid red looks good sometimes and sometimes I want a re-paint. But that's far down the economic road and would cost me around 1200$

Your bike looks great. Nice Job!

Thanks BrandEn ! Ill provide more pictures when the bikes "done" and all the tweeks are added and the bike is clean :)

Nicely done!!!

How would you like a set of stripes for your tank?  $30 shipped.  i wont spam your thread with pics unless your interested.



Thats a nice offer, but do you know I live in sweden ? the shipping is like 30$ alone :D

Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Viktor.J

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #170 on: April 25, 2013, 06:13:20 AM »
Well today I got the steering damper. After doing some measurements I've come to the conclusion that it has to be a NHK 3190E, which must be good since it's the most expensive :) It cost me 55 $ with shipping :)

It's massive though, the total length is 535 mm and the stroke is 190 mm. Any body have some "rules of thumb" when it comes to steering dampers ? mounting ? service ? etc...




I've seen like 14135 mounting types. But I've read somewhere that I should try to take advantage of as much stroke as possible..
« Last Edit: April 25, 2013, 06:21:33 AM by Viktor.J »
Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Stev-o

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #171 on: April 25, 2013, 06:26:45 PM »
Why do you think you need that?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Viktor.J

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #172 on: April 26, 2013, 12:34:28 AM »
Why do you think you need that?

I've read and experience tendencies to wobbling. And since I plan on riding the bike at highway speeds etc. I want to feel secure and "safe" on the bike. Same reason I converted to dual discs, Even my father who had plenty of cb500, cb750, cb900, cb1100 etc. (honda only guy) said people drove with steering dampers back in the day. Down the road im also looking for a fork brace and modern rear shocks and further down progressive fork springs and better swingarms bushings :D
Please ! Take a look and give me feedback in my project thread, its much needed :)
http://forums.sohc4.net/index.php?topic=112745.0

Honda CB750 K2

Offline Stev-o

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #173 on: April 26, 2013, 06:16:19 AM »
I've never experienced a wobble on my K4 even at high speed.  My brother had a Yamaha XS1100 that would develop a high speed wobble in the turns but was caused by a small aftermarket fairing he installed.
How are you going to mount that?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Garystratos201

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Re: CB750 K2 restoration to "originalish" condition // Almost done !!!
« Reply #174 on: April 26, 2013, 08:08:54 AM »
I`ve experienced one high sdpeed wobble way back when I had my first K1 . Maybe the first year I owned on the interstate screaming down I20 with my hair on fire. The most scary thing I`ve ever experienced. Turned out to be loose spokes in the rear wheel...............Gary
Visit my build project;
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Current ride; Bass boat.... 2005 Ranger 521VX,250 hp Mercury Verado, super charged and direct fuel injected. Not a bass on the lake can out run me !!!