Author Topic: 1975 CB750 K5 SPYDER  (Read 61717 times)

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Offline Greggo

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Re: 750 K5 SPYDER - reincarnation
« Reply #25 on: May 27, 2013, 10:33:48 PM »
If you're painting the bodywork bright like the red, I would keep the rest of it dark.  I guess it's a question of what you want to stand out...the bodywork, or the motor and wheels...silver body with all black could look cool.  Personally, I would paint the body black, and go polished/silver on everything else including the wheels.

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #26 on: May 28, 2013, 02:53:48 PM »
Woke up this morning and decided to paint the whole engine cast coat iron to make the engine looks more appealing and a bit on superior looking than the rest of the bike



Also replaced alternator on the bike, as the old one have hole and leak



Can't find my points cover lol



Will have a basket case soon, and roller afterward :)
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

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Offline 2ceebees

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Re: 750 K5 SPYDER - reincarnation
« Reply #27 on: May 28, 2013, 03:49:22 PM »
Looking good man.  Can you provide more info on the prep you did and which paint did you use?
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Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #28 on: May 28, 2013, 04:36:58 PM »
Looking good man.  Can you provide more info on the prep you did and which paint did you use?

the whole paint process, started off with degreasing for like 3 rounds, I used simple green Pro HD (purple color) came in gallon). blast off with air compressor, wipe off, soda blasted the hard to reach places, degrease again, then air compressor dry and wipe.  this gets most stuff off.  i'm not worried much over the stuff that are really hard to reach.  I didn't use alcohol to wipe off the surface for better adhesion, I didn't do that either.  then I painted with BBQ paint, that I originally thought I would but it didn't look right on engine.  it looks great on frame thought.  then yesterday I degrease the whole engine again after all button up, then paint the new color over the BBQ paint.  I used a bit of engine primer that I had left from previous project.  all in all, the BBQ paint should be good base as primer.  the paint I used was VHT Cast Coat IRON.
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

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And the little ones z50r, xr50r, st90


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Offline SOHC4 Cafe Racer Fan

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Re: 750 K5 SPYDER - reincarnation
« Reply #29 on: May 28, 2013, 04:58:32 PM »
The color looks great.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

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1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Stev-o

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Re: 750 K5 SPYDER - reincarnation
« Reply #30 on: May 28, 2013, 07:02:31 PM »
The color looks great.

+1. But no BBQ or beer? WTF Gold??
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Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #31 on: May 29, 2013, 03:23:17 PM »
The color looks great.

+1. But no BBQ or beer? WTF Gold??

No grill at home to BBQ :(  not so much of a drinker nowadays, besides i'm very light weight when it comes to alcohol and I get drunk after 2 Heinekens, hahaha
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


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Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #32 on: May 29, 2013, 03:47:06 PM »
preparing for basket case, lots of pads on the floor. 



with mixture of masculine and feminine in me, lowering down the engine



turn in over sideway on the right side of the engine, removed the oil filter



slowly lowering down the bare frame to the engine, and trying best not to scratch paints, all went well, only few scratches that again i'm not worried about



my lower and upper triple tree that I worked on the paint months ago. it already came with tapered bearings, so all I had to do was just WD40 the bearings, cleaned out the old grease, make sure they spin freely, and applied small amount of grease



forks assembled, steering move freely, I now have a basket case :)



i needed to mock up the bike to bring my endorphin level up, for excitement

here's one with tank and side covers that I got from member Chewbacca5000 sometimes last year




and here's one with tank I got from member kevins750





and here's again, how the bike came



asked the wifey to see which she likes best, but she wouldn't answer.  I think she's testing me if we are thinking of the same color choice......hmm....
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #33 on: May 30, 2013, 03:49:59 PM »
only did a few things on the bike today, but seem like it took forever to complete, then head out to work.

cleaned and installed oil tank and hoses, clutch cable and left hand control, bolt up engine to frame and foot pegs.  also double checked the fork tubes to make sure no oil weeps around the seals, there were lots of rust pits and I fixed it with jb weld months ago.  then, my 2.5 year old was all over the bike.



hopefully mounting up swingarm and shocks tomorrow
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #34 on: June 02, 2013, 09:06:39 AM »
Wheels in the making. Degreased some.  Bead blasted some. Rinsed off some. Denatured alcohol some.  Then painted the outer rims black, then taped up.



Painted up the rest with gold.



Removed the tape before the paint too dried up.



Mocked up next to the bike.



Can you see a lot of imperfections? No? Good, as I don't have the cash to properly restore these wheels at the moment.  So hoping this will do for now.
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline Greggo

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Re: 750 K5 SPYDER - reincarnation
« Reply #35 on: June 02, 2013, 11:18:11 AM »
That looks sweet.

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #36 on: June 05, 2013, 03:32:04 PM »
just small updates, and problem. 

cleaning up my wheels hardware so I can mock up the wheels before ordering tires.  having a problem with my rear wheel adapter, it has cracks on 5 out of 6 bolt holes!  dangerous! at least I would think so.





or is it ok to run like this?  does anybody know where I can find a replacement for it?


Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline Greggo

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Re: 750 K5 SPYDER - reincarnation
« Reply #37 on: June 05, 2013, 04:11:48 PM »
That would make me question the integrity of the entire wheel.  Does the brake disc bolt through that as well?

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #38 on: June 05, 2013, 04:40:47 PM »
That would make me question the integrity of the entire wheel.  Does the brake disc bolt through that as well?

Yes brake disc bolts go through those holes.  There were some oxidization to the wheels, not sure how much is bad.
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline SOHC4 Cafe Racer Fan

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Re: 750 K5 SPYDER - reincarnation
« Reply #39 on: June 05, 2013, 08:36:54 PM »
No thanks.  I would not risk my bacon.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Bankerdanny

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Re: 750 K5 SPYDER - reincarnation
« Reply #40 on: June 06, 2013, 08:46:58 AM »
If that is aluminum you MIGHT be able to get the cracks welded. But in general I would say that is toast and you need to be considering different wheel options.
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Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #41 on: June 06, 2013, 09:13:26 PM »
If that is aluminum you MIGHT be able to get the cracks welded. But in general I would say that is toast and you need to be considering different wheel options.

my other option is to pull lesters out of my parts bike, and convert this bike back to drum brake, been thinking this lately too

Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

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And the little ones z50r, xr50r, st90


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Re: 750 K5 SPYDER - reincarnation
« Reply #42 on: June 07, 2013, 11:43:02 AM »
Can you have a machinist make you a new one out of high strength alloy?
David- back in the desert SW!

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #43 on: June 07, 2013, 12:03:23 PM »
Can you have a machinist make you a new one out of high strength alloy?

Tried getting hold of Scottly to help, but no response  :'( :'(
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

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And the little ones z50r, xr50r, st90


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Re: 750 K5 SPYDER - reincarnation
« Reply #44 on: June 07, 2013, 12:10:00 PM »
PMs do not notify you from time to time...
maybe another pm or email would be in order. Would 754 have the equipment needed?
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Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #45 on: June 07, 2013, 12:15:40 PM »
PMs do not notify you from time to time...
maybe another pm or email would be in order. Would 754 have the equipment needed?

754 handed it over to Scottly

May be the kimtabs are meant to be sitting on shelf :(
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #46 on: June 07, 2013, 08:45:37 PM »
Going to wait and see about the wheels. 

In the mean time, moving on with other parts as there are still lots of things to do on the bike. 

And so, pulled the carbs out of the box. Nothing seem out of ordinary



What's interesting about them may be the chrome bowls and the brass floats???



The carbs are way cleaner than expected. 



And oh, the jets are #40 and #135!!!!  Isn't that way too rich for the main jets?
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

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And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

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Re: 750 K5 SPYDER - reincarnation
« Reply #47 on: June 07, 2013, 09:19:05 PM »
Those jets sound like jets for a pretty radical cam and pods as well as a pretty free flowing exhaust.  What's the motor got in it?
Aren't the 550 jets in the 100-105 range normally and the 750 in another band... I don't pay close attention to the 750 tuning threads since I don't have a 750 and don't plan on getting one.
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Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #48 on: June 10, 2013, 02:31:13 PM »
Those jets sound like jets for a pretty radical cam and pods as well as a pretty free flowing exhaust.  What's the motor got in it?
Aren't the 550 jets in the 100-105 range normally and the 750 in another band... I don't pay close attention to the 750 tuning threads since I don't have a 750 and don't plan on getting one.

yeah, the jets on the carbs are fairly large, compare with the stocks setup which are between 105 to 120 depend on carbs type.  i'll have to look into that more and doc my findings here.  inside the motor doesn't seem like there is any performance parts installed.  the pistons were stock when I was working on the rings.  the cam was Honda cam.  stock air box and Mac exhaust came with the bike.  not sure if the pipe was open or had a baffle in it.
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline goldarrow

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Re: 750 K5 SPYDER - reincarnation
« Reply #49 on: June 10, 2013, 02:48:18 PM »
looking closer to the carbs before tearing down.



I think this is one of the many reasons why the bike was parked.  to large main jets, and this??? notice the tip of the needle sticking out



removed the rack holder plate



inside the slides and removing the needle



all the pics are prior to cleaing.  here's a pic of the carbs after a day of soaking with pine-sol mix with hot water and let it sit over night.  dirt and grime was easily wipe off, except for the hard to reach area.


decided to also get harbor freight ultra sonic cleaner.  here's what came out of the carbs after soaking.


carb bodies in comparison.  will still have to one more round using q-tip


carbs are marked 7A with brass floatings

Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0