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Author Topic: 1973 CB750 Four K3 -- Project "Terry's Fault" -- BUILD RESUMED  (Read 62384 times)

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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #350 on: April 13, 2016, 04:07:05 PM »
Thanks, those are nice too, just a bit too low for me :) Sorry I know I'm being picky, I can't believe EMGO actually has stuff close to what I'm looking for, I'll keep digging.
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Offline evanphi

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #351 on: April 14, 2016, 04:54:00 AM »
I figured the Rizomas were too much. ;D Most of us plebs can't afford them. They sure are pretty, though.

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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 alacrity

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- TEAR DOWN
« Reply #352 on: April 14, 2016, 02:03:54 PM »
Quote from: 754 on January 01, 2016, 11:26:43 AM
Just be careful, i think one member on here was selling an alloy tank, that lost a bit in fit and finish, between the online pic and actual product....not like you can easily send it back...
And check the underneath pics to see how many pieces used and how good the welds look..some are savage.. The better the guy is at forming, the less pieces used..
Yes. That member was me.
:-(
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I recently restored and sold a 77 cb750f, and am nearly finished with a (former basket case) cb750k5.  This is a place to share, learn and enjoy.  I am grateful to and for 99+% of this site's membership.

Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #353 on: April 16, 2016, 10:00:16 AM »
Can upload pix again, post updated here

http://forums.sohc4.net/index.php/topic,142367.msg1795244.html#msg1795244

will get caught up sometime today.
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #354 on: April 19, 2016, 08:49:54 PM »
Renthal bars and ends came in a while back, need to drill them and feed the wiring through, but will hold off on that until I'm close to assembly (controls got done a year ago alongside the K2's). Finished rebuilding the seat plunger with plated and coated parts (these were done a while back, just got around to it recently).
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #355 on: April 19, 2016, 08:56:49 PM »
With those bars, I've got a set of NOS Euro cables to use but skipped on the Euro brake lines as I wanted to try the SS ones. Awful timing since slingshot is closed again due to tech difficulties. I tried reaching out to Shuan directly to get a set made but never heard back. Ryan/Ravi mentioned a Raymond Chan as good source for SS brake lines so I searched around and found this

http://forums.sohc4.net/index.php/topic,142604.msg1620427.html#msg1620427

Called him on his toll free line, nice guy but very particular about hose lengths, and only makes them after you specify exact sizes. Big help from Davez (runs the same bars) on the measurements, I got the order in late on Wed, lines arrived on Monday morning, pretty cool for $65 shipped. Lines look well built, I wanted all black everything including the banjos and that was not an issue, hopefully these will work out.
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Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #356 on: April 19, 2016, 10:38:28 PM »
Pretty awesome knitting work on the back of that chair.  My mom did some similar work in the 70s.  Just right for a build thread on a 70s bike!
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Offline evanphi

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #357 on: April 20, 2016, 05:33:49 AM »
Those bars have some bungs inside that may prevent you from running wires inside, Rafi. The walls are also much thicker than steel.

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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 Stev-o

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #358 on: April 20, 2016, 06:57:06 AM »
Quote from: CB750 Cafe Racer Fan on April 19, 2016, 10:38:28 PM
Pretty awesome knitting work on the back of that chair.  My mom did some similar work in the 70s.  Just right for a build thread on a 70s bike!

My Mom did too!!  Ravi is multi talented!!

Thanks for the brake line info, I need to order lines for my K3 as well.
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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 #359 on: April 20, 2016, 06:58:26 AM »
@Don, thanks, the wife is big on knitting and crochet. We don't have couches because of my lower back issues, just desk chairs which get pretty cold in the winter, so she made one for each of them.

@Evan, its doable, counting on Dave again

http://forums.sohc4.net/index.php/topic,139768.msg1654873.html#msg1654873
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #360 on: April 20, 2016, 07:00:05 AM »
Quote from: Stev-o on April 20, 2016, 06:57:06 AM
Quote from: CB750 Cafe Racer Fan on April 19, 2016, 10:38:28 PM
Pretty awesome knitting work on the back of that chair.  My mom did some similar work in the 70s.  Just right for a build thread on a 70s bike!

My Mom did too!!  Ravi is multi talented!!

Thanks for the brake line info, I need to order lines for my K3 as well.

haha, Ravie sure is talented  :P :P not me though ;D
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Offline evanphi

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #361 on: April 20, 2016, 07:04:12 AM »
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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 #362 on: April 20, 2016, 05:50:15 PM »
Goodies returned from JMR, back cut trans, balanced dynamp rotor, shot peened, polished and balanced rods.
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #363 on: April 20, 2016, 05:52:20 PM »
The cam chain tensioner rollers rebuilt with the proper tool, wayyy better than what it would have looked like had I hamfisted it ;D
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #364 on: April 22, 2016, 06:27:26 PM »
Final box of goodies is back from JMR, check out the killer S2+ head work  8) 8)

All new everything except for collets and retainers, those are stock.
Ported, polished, milled
Honed and tapered guides
+1 intake with matching new seats cut
Full Serdi VJ
and more, all this without a nick on the powder coat anywhere  8) 8) 8) 8)
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #365 on: April 22, 2016, 06:28:29 PM »
More
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #366 on: April 22, 2016, 06:30:49 PM »
Ready to install Wisecos! HD nuts for use with Kibblewhite HD studs, and four Chrome nuts for use on the studs exposed to atmosphere 8) 8) 8)

I haven't posted pix from when box 1 was here with the cyls and all kindsa other goodies, will get caught up soon.
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Offline PeWe

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #367 on: April 23, 2016, 03:37:36 AM »
I use std DIN6331 collar nuts, 10.9 grade for head if I remember correctly. Kibblewhite studs. Thinner washers since the nuts collars are thick.
Thanks for the hint about the primary chains. They cost less than Honda OEM
 I have ordered 2 chains for a BMW. 530 d,  184 HP,  [E39],  Production: 1998/08 - 2000/09,  Engine code: M57 D30 (306D1)
Original partno: 11 31 2 248 729

I have the CCC chains mounted but the growing pile of parts need chains. I think I have developed a hoarder syndrome thanks to these forums :)
« Last Edit: April 23, 2016, 03:39:35 AM by PeWe »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline calj737

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #368 on: April 23, 2016, 04:39:12 AM »
Chrome nuts to the atmosphere will rust (you know that right?). Why not use SS nuts?
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline tweakin

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #369 on: April 23, 2016, 05:29:37 AM »
I have decided to ban myself from reading your thread.  It is really giving me the itch to build another bike... :D
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #370 on: April 23, 2016, 09:11:45 AM »
Quote from: PeWe on April 23, 2016, 03:37:36 AM
I use std DIN6331 collar nuts, 10.9 grade for head if I remember correctly. Kibblewhite studs. Thinner washers since the nuts collars are thick.
Thanks for the hint about the primary chains. They cost less than Honda OEM
 I have ordered 2 chains for a BMW. 530 d,  184 HP,  [E39],  Production: 1998/08 - 2000/09,  Engine code: M57 D30 (306D1)
Original partno: 11 31 2 248 729

I have the CCC chains mounted but the growing pile of parts need chains. I think I have developed a hoarder syndrome thanks to these forums :)

Mireko (MessnerMoto) did all the digging on the primary chains, I just happen to be the one giving it a try  ;D ;D
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #371 on: April 23, 2016, 09:14:28 AM »
Quote from: calj737 on April 23, 2016, 04:39:12 AM
Chrome nuts to the atmosphere will rust (you know that right?). Why not use SS nuts?
Sure, if I do power washes and not dry after, or ride in heavy rain or things like that. Chrome will hold out better than the stock zinc or what I imagine is black oxide on the HD nuts. Original plan was to stick with stock ones, I didn't even know there were chrome ones available from Honda. This came straight from JMR. SS will be better, but I haven't worked out the specs, maybe next build...
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Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #372 on: April 23, 2016, 09:15:58 AM »
Quote from: tweakin on April 23, 2016, 05:29:37 AM
I have decided to ban myself from reading your thread.  It is really giving me the itch to build another bike... :D
Ha! Too late Tige, there is no vaccine for the 750 bug and you KNOW you got it ;D ;D Its just a matter of time now, for that itch :P :P :P :P
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Offline jerry h

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #373 on: April 23, 2016, 06:43:59 PM »
Now that head looks like it means business! ;D
I'd have a hard time to stop looking at it and bolt it down.

Wow!
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"It is not the critic who counts, the credit belongs to the man who is actually in the arena, whose hands are covered with grease and oil."

K2 http://forums.sohc4.net/index.php/topic,105097.0.html

Offline edwardmorris

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Re: 1973 CB750 Four K3 -- Project "Terry's Fault" -- RECONDITIONING
« Reply #374 on: April 23, 2016, 07:44:49 PM »
Quote from: jerry h on April 23, 2016, 06:43:59 PM
Now that head looks like it means business! ;D
I'd have a hard time to stop looking at it and bolt it down.

Wow!

I know the feeling! The K2 head got a pretty aggressive port job too, and I've been riding a lot lately because of the great weather we've been having here. The K2 goes pyscho starting at 3000RPMs, like REALLY pulls, which is just too much fun around town and on longer stretches.

I'm boxing up everything for cryo right now, trying to mimic the extensive packaging as they returned from Mike. If all goes well, I should have it all back within 10 days and I can start assembly. In the meanwhile, I'm finishing up the front forks, swingarm (new shock bushings) and several other little things that will eat up a lot of time. Gotta sort out a couple electrics too, using a K1 tail light and pre K2 turn signals etc. etc. busy busy busy....
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