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Author Topic: 1973 CB750 Four K3 -- Project "Terry's Fault" -- BUILD RESUMED  (Read 63053 times)

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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #300 on: April 01, 2016, 03:59:34 PM »
Quote from: Stev-o on April 01, 2016, 03:49:30 PM
Quote from: CB750 Cafe Racer Fan on April 01, 2016, 03:36:22 PM
Quote from: edwardmorris on April 01, 2016, 03:30:24 PM
Picked up all my chrome today, won't be home for hours, just excited :P :P

That reminds me of the expression, "Chrome don't get you home."

Maybe it should be "Cant wait to get home with Chrome!"
haha both true  ;)
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #301 on: April 01, 2016, 06:35:37 PM »
Bling!

Man, that brake stay came out looking nice! Wish I could use it on this build, oh well ;) There's a bunch more little stuff I haven't opened up yet, will post pix as I start putting things back together.

Period correct lowering blocks back to new. No plans on using these, so PM me if interested.
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Offline Terry in Australia

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #302 on: April 01, 2016, 06:59:43 PM »
Looking good Rafi, I was a bit worried when I first saw your powder coated carbs, but it looks like you've done a meticulous job of cleaning all the surplus powder out of them, so I'm sure they'll work as well as they look! Cheers, Terry. ;D
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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 edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #303 on: April 01, 2016, 07:13:55 PM »
Quote from: Terry in Australia on April 01, 2016, 06:59:43 PM
Looking good Rafi, I was a bit worried when I first saw your powder coated carbs, but it looks like you've done a meticulous job of cleaning all the surplus powder out of them, so I'm sure they'll work as well as they look! Cheers, Terry. ;D
Thanks Terry!

I should have clarified when I said fuel passages, I meant only the part by the fuel Ts. None of the tiny idle/need/main passages had anything on them, and I absolutely made sure of it, so hopefully it will work well :)
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Offline Terry in Australia

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #304 on: April 02, 2016, 05:36:16 AM »
No worries mate, carbs are delicate instruments and there's no room for error, but I know how anal (in a good way) you are with everything you do, so I'm sure you'll be fine. Cheers, Terry. ;D
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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 edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #305 on: April 02, 2016, 08:26:58 PM »
Well, thanks uncle Tez, I'm actually glad you're keep an eye out on this build :) I'm hoping things will pick up soon as I got word from JMR that my head is nearly done. Few odds and ends remaining on the engine internals, then they'll all be heading to cryo treatment. Gonna try and keep working on the chassis tomorrow, balance wheels and put the front forks together now that the I finally have everything back from the chromer...
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #306 on: April 04, 2016, 08:21:34 PM »
Crank is back from APE. Plan was to only get it balanced, but somehow this one got mixed up with the big boys and ended up at 19lbs. Big Jay from APE contacted me and suggested that the lightened one will work better for a road racer anyway, but did offer to find a different crank and start over. Lightened, balanced and fluted oil holes, I'm just going to run with it  8)
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Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #307 on: April 04, 2016, 08:28:52 PM »
Extra goodness at the same price.  You will have slightly less flywheel effect, so it will rev more quickly and might have a little less torque at the bottom.
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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 edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #308 on: April 04, 2016, 08:35:03 PM »
Quote from: CB750 Cafe Racer Fan on April 04, 2016, 08:28:52 PM
Extra goodness at the same price...
haha I wish! I paid the full price, but I'm actually glad that they still care for us 750 guys, and Jay himself reached out to me. I would have declined a discount even if they offered me one :)
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #309 on: April 05, 2016, 09:19:08 PM »
Made my rear brake actuator rod today using a poor man's lathe, as in self centering die holder thingy. Parts are all from McMaster and non metric. Located a proper 6mm metric clevis pin on the UK ebay in stainless but too cost prohibitive. McMaster has metric stuff, just not in stainless for the sizes I needed. I ended up using a 1/4" SS rod (2') with a 1/4-28 threaded SS clevis rod end. The pin dia is a perfect fit.

So, who wants to machine a simple knurled adjuster knob thingy for the other end ;D ;D?
« Last Edit: April 05, 2016, 09:22:09 PM by edwardmorris »
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #310 on: April 05, 2016, 09:21:26 PM »
Its a bit long at 2' but I'll chop it when close to assembly. Came out nice and straight :)

Baked cookies in the background  :P :P got carried away on that new sunstar sprocket but turned out nice. Blanchard ground rotor looks too good for drillin and thinnin, so skipping.
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Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #311 on: April 05, 2016, 09:42:24 PM »
I say you go Cal's route and laser cuts some slots into that cleanly ground brake rotor.
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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 SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #312 on: April 06, 2016, 07:28:45 AM »
Quote from: calj737 on April 06, 2016, 06:28:47 AM
Quote from: CB750 Cafe Racer Fan on April 05, 2016, 09:42:24 PM
I say you go Cal's route and mill some slots into that cleanly ground brake rotor.

FTFM, thanks!
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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 edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #313 on: April 06, 2016, 10:45:01 PM »
Not a lot of time today, but put these back together, dampers feel great and are leak free on both ends, knock on wood. These have pieces that are zinced, chromed, painted, powdered and reconditioned (rubbers), may not be perfect but the look is exactly what I was after.
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Offline Stev-o

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #314 on: April 07, 2016, 07:07:06 AM »
Those look sweet!  But after being zinced, chromed, painted, powdered and reconditioned, prolly cheaper to buy Hagons?!
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #315 on: April 07, 2016, 07:44:33 AM »
Quote from: Stev-o on April 07, 2016, 07:07:06 AM
Those look sweet!  But after being zinced, chromed, painted, powdered and reconditioned, prolly cheaper to buy Hagons?!
Thanks. Time wise: sure, cost wise: maybe. I didn't find any hagons in this config though (or any of them, not even EMGO).
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #316 on: April 09, 2016, 03:06:52 PM »
Pretty busy weekend so far, but managed to squeeze some time for an experiment. I had a SS round bar in 1/2" dia, which is a hair over 12mm of the rear bake panel lever insert thingy. I filed it down to size using my other poor man's lathe, aka the drill press. Chucked the rod on there, set up the base so the file is grounded true and let it rip. Drilling the 1/4" hole through was the real challenge as my drill press isn't the best at holding steady. Just did that by holding the piece on the bench vise and free handing smaller dia bits up to 1/4". Its a teeeeny bit off center but hardly visible, fits well. I still think I'd rather find a more elegantly done piece, but this is a good fall back. I ordered a couple thumb screws recommended by Prokop, they work like a charm! Another good fall back ;) Time to locate a SS compression spring (mcmaster probably has it) and call it done.
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #317 on: April 09, 2016, 11:57:26 PM »
Working late, still wanted to get some stuff done so took on the forks. All new everything, but as I was collecting parts to put together, I realized I'm missing the two 6x10mm hex bolts for the drains  >:( Decided to keep going and put together what I have on hand. New fork tubes form z1parts, everything coated with mineral based singer oil for assembly and prelube. Torqued the bottom drain screws with their copper washers without much hassle. Have a set of new progressives along with the rechromed tube caps and their new o-rings, will get back to this when I have those two little missing buggers.

Also finished up making the rear brake stay out of a SS flat bar, came out nice but I may round the corners some more, pix later.
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #318 on: April 10, 2016, 08:48:48 PM »
Got to the starter today, full of carbon crud as expected, but there was a ton of some kinda light weight oil all over everything (over lubed?). Cleaned it all up, resurfaced the contact surface (commutator strip?) and got the wheel spacers plated in the background. They were pretty far gone for reuse as is, so stripped and plated. I STILL HAVEN'T FOUND THE RETAINER CIRCLIP FOR LESTER REAR WHEEL. Any idea where to get one or what size it is?
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #319 on: April 10, 2016, 08:53:06 PM »
Tore off the old brittle sleeving, installed new from Vintage connections. All new rubbers and brushes, put it all back together with singer machine oil and tested, buttery smoooooth and quiet.

AND I can't upload pix anymore, wonder what's up.

Trying again
« Last Edit: April 16, 2016, 09:58:58 AM by edwardmorris »
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Offline Stev-o

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #320 on: April 11, 2016, 07:43:32 AM »
Was that the starter I sent you?  If yes, no idea why all the oil.  It came from NM in a parts lot I bought.
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline evanphi

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #321 on: April 11, 2016, 07:49:57 AM »
Quote from: edwardmorris on April 10, 2016, 08:53:06 PM
Tore off the old brittle sleeving, installed new from Vintage connections. All new rubbers and brushes, put it all back together with singer machine oil and tested, buttery smoooooth and quiet.

AND I can't upload pix anymore, wonder what's up.

You've probably reached some sort of limit for space on the servers.
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--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
Calculating the correct input circumference for digital speedometers connected to the original speedometer drive

Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #322 on: April 11, 2016, 08:11:10 AM »
@Steve yep, that's the one, nothing to worry, just over lubed. Cleaned up spotless with some CRC quick dry electronics cleaner, spins great after assembly.

@Evan, Glenn is looking into the photo upload issue, apparently I'm not the first ;)
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #323 on: April 13, 2016, 10:18:28 AM »
Still can't upload pix, will update later.

Looking for recommendations on Oval mirrors in black, any good ones out there?
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Offline evanphi

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #324 on: April 13, 2016, 11:09:21 AM »
Quote from: edwardmorris on April 13, 2016, 10:18:28 AM
Still can't upload pix, will update later.

Looking for recommendations on Oval mirrors in black, any good ones out there?

Bar ends or original mounts?

http://www.rizoma.com/universal/mirrors/en

These are very high quality. The youtube vlogger Royal Jordanian has them on all his bikes. They come in a few oval styles.
« Last Edit: April 13, 2016, 11:11:08 AM by evanphi »
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--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
Calculating the correct input circumference for digital speedometers connected to the original speedometer drive
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