Author Topic: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK -- PIX ON PAGE 50  (Read 245161 times)

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Offline edwardmorris

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Re: 1972 CB750 Four K2 -- Project "Ice Cream"-- HOME STRETCH
« Reply #1175 on: June 25, 2015, 08:16:19 PM »
Here are the rest of them, picture courtesy of the fabulous Laura Peters, photographer extraordinaire. Visit www.funnychord.com to see some of here other great work.



























































« Last Edit: July 20, 2017, 02:43:55 PM by edwardmorris »

Offline Tews19

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Re: 1972 CB750 Four K2 -- Project "Ice Cream"-- HOME STRETCH
« Reply #1176 on: June 25, 2015, 08:39:19 PM »
Damnnnnnn! There is a lot of bling!
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline edwardmorris

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Re: 1972 CB750 Four K2 -- Project "Ice Cream"-- HOME STRETCH
« Reply #1177 on: June 25, 2015, 09:14:40 PM »
I'd like to thank everybody on the SOHC forums for everything. I can't thank my beautiful and patient wife enough for putting up with all the mess I had laying out all over our living room and several other sacrifices she's made for me. Special thanks to these great individuals below in no particular order. It was with all your help that I managed to convert horse$hit into ice cream  ;) Also the incredibly talented Laura Peters/ www.funnychord.com for these amazing pix.


Mark Paris/Hondaman

Patient and elaborate answers to my rage inducing noob questions throughout the build, and still ongoing. Gave my charging coils a new life, updates to my new wiring harness and a total rebuild of the swingarm.

Gordon East/RRRToolsolutions/ilbikes

Rescued the frame early on with a special frame kit, loaned me several tools, ordered special tools for me that RRR doesn't usually stock, several phone calls and texts walking me through stuff.

Bill Benton/Racing

Way too many like new parts and some NOS ones to list, all at generous prices, lots of helpful tips before I got into things, several phone calls and texts walking me through stuff.

Dave/DaveZ

Pointed me in the right direction with the VIN plate stuff, lots of helpful tips before I got into things, several phone calls and texts walking me through stuff.

Nick/Tews19

Tons of good advice early on, stopped me from making snap purchases, traded the K2 correct master cylinder for my build.

Marc/Powderman

So far mine's the only set of controls (that I know) which have powder coated lettering! Also coated my master cylinder to match. Helped me track down a good powder coat shop locally and quiz them before assigning work.

Jerry H

Jerry's K2 is what mine's modeled after, he helped me with two full sets of gauges, painted the outer housings and installed those tough crimp rings! Lots of tips and phone calls walking me through stuff.

KC/KC_Northstar

Gave me pointers on early K2 subtleties, sold me the K2 correct gagues, controls, seat (not used on the bike) and the turn buzzer.

Ron/McRider

Expert advice, loaned me the oil pressure gauge and helped immensely with the master cylinder issues. Unparalleled inspiration for attention to detail down to tiny bits. Incredibly detailed documentation in the Phaedrus logs that I referred to often, saving me tons of new threads and all the other experts their time ;)

Terry/in Australia

Expert advice, much needed motivation and inspiration early on in the build, also resposnible for me wanting to own a second 750 to model after his K2's awesome dark engine.

Mike/MRieck

Generous porting work for the price, gave me EXACTLY what I wanted and more, the man truly treats every piece he works on as his own! Several pointers on proper assembly and other tips.

Stev-O

Generous and quick trades on short notice, got the later year shift drum and the critical clutch basket washer from him in trade for 750 and Z1 bits.

Elan

Started making the infamous oil stoppers just as I tore into my engine, oil pump works like new thanks to the super rebuild kit!

Godffrey

Sold me a set of immaculate oil pump rotors and end caps.

Chris/Kickstart

Shared invaluable info related to widening the grooves on SKF bearings, his side by side pic comparing the stockers to the SKFs is the only reason the machine shop even took the job!

Joe/FrankenFrankenStuff

Franken Finserts!

Frank/754

Sold me a NOS cam at a very generous price.

James/Harisuluv

Gave away those pesky 1mm cotter pins for the choke linkage, several pointers on the carb rebuilding.

Ryan/73Nancy

Gave me detailed instructions on exactly how to achieve the look I was after with the polishing bits, shared invaluable trade secrets!

Johnie

Gave me some polishing and keep up tips.

The Other Derek

Sent me rivets for the VIN installation and a dash label plate (for my K3) for free!

Cal/Calj

General advice, much needed scolding every now and then :P

Sean/Seanbarney

General advice, help early on and sold me the rare early K2 dash with the anodizing intact.

Prokop/70CB750

Loaned me his neway valve seat cutters early on, didn't end up using them out of fear, but I appreciate the gesture.

R. Benjamin

Drove for over an hour to pick up and ship a set of HM341s that I had tracked down in Virginia via craig's list to me. Despite my sincerest efforts, one of the mufflers couldn't be saved, so the set didn't end up on this bike. But I'm grateful for the gesture.

Charlie/Oldhatt

Helped me past a goof up when lacing up the wheels.

Marcel/LeCram/CB750Faces.com

All new parts for my gauges came from Marcel, gave me pointers on proper assembly (which Jerry eneded up helping with), even helped me out with my K3's custom gauges.

John/jtb

Sent me 2 of those pesky little buggers that are the gauge face screws.

Gold dude/goldarrow

Sold me 1-2 those pesky little gauge face screws.

Kyle/Chewbacca

Sold me a spare tach when my first one took a beating on its ride home.

Ed Haeuser/edhaeuser

Sold me a ground down socket, made installing the connecting rod bolts a breeze!

Dave/02z06dave

Sold me the pristine front brake caliper assembly.

Tom Gugliotta

Excellent article on DIY zinc plating, detailed answers to several of my plating related questions via email, also shared the chromate conversion article (unpublished).

Joe Marks/jtmarks77 on ebay

More than 85% of the bike is NOS and yamiya stuff, all came via JT.

Len from Weldco

Welded the frame kit in place.

Lou from Motion Industries

Helped me with finding all the SKF bearings I needed for the entire bike.

Jack and Dan from Midwest Accurate Grinding

Widedend the grooves on the SKF bearings, removed the oil pump metal band seal, blanchard ground the front brake rotor.

Bill from VanSenus

Bead blasting, engine bore for first oversize pistons with proper clearance, transmissoin bearing removal and a lot of other shop work.

Bob from Coating Specialties

Was patient enough to answer all my questions and didn't kick me out for questioning how he does his job. Excellent work at a generous price.

Mike from Calco Plating

Did all the rechroming on the bike, from the large fenders down to washers.

Mike W from work

Helped me put the cases back together.

Jason H from down the street

Helped me put the top end together.

Big Dave and Kevin from Trust Auto Repair shop

Helped me wrestle the engine in and out of the frame.

Honda Dealerships all over US
« Last Edit: July 08, 2015, 10:45:49 AM by edwardmorris »

Offline Davez134

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1178 on: June 25, 2015, 09:28:02 PM »
Speechless! Amazing job! What is most amazing is how much we all learn through doing stuff like this. If you go back and read the first few pages, you really realize it. Things that seem so easy and trivial now, at the beginning was like "what am I getting into here?!" Way to see it through and I wish you the best of luck with everything! If I "hit it big" ill buy from ya and store it in your garage ;)

Offline SOHC4 Cafe Racer Fan

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1179 on: June 25, 2015, 09:54:13 PM »
You can bet your a$$ this is nominated on the 1st for BOTM (and very likely BOTY)!  AMAZING.  8) 8) 8) 8) 8)
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 seanbarney41

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1180 on: June 26, 2015, 03:23:17 AM »
Hey man, thanks for the thanks...everybody here asks questions and everybody gets answers.  The reason your project has been successful is because you LISTENED! ;)
If it works good, it looks good...

Offline DME

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1181 on: June 26, 2015, 04:18:25 AM »
Fantastic job, turned out great  8)

Offline oldhatt45

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1182 on: June 26, 2015, 04:33:01 AM »
Rafi,

You truly did a Vic World job!!!!! 
And it truly does take a village, but in the end, it's the persistence that brings it all together.

I agree with CB750 Café Racer Fan.  BOTM and BOTY!

Charlie

Offline evanphi

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1183 on: June 26, 2015, 06:05:21 AM »
AMAZING.

Those covers are so shiny it actually looks like badly done HDR post-processing!!!
--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 BPellerine

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1184 on: June 26, 2015, 06:26:41 PM »
my fav colour and a nice bike,you now know what it costs to build a brand new bike,haha,bill
1978 CB 750K ard and webers
another anfob

Offline Tews19

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1185 on: June 26, 2015, 06:32:46 PM »
my fav colour and a nice bike,you now know what it costs to build a brand new bike,haha,bill

Bill, I think he is at 3-4k, right Rafster!?
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline edwardmorris

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1186 on: June 26, 2015, 07:07:56 PM »
my fav colour and a nice bike,you now know what it costs to build a brand new bike,haha,bill

Bill, I think he is at 3-4k, right Rafster!?
That + 20K ;D ;D

Offline Restoration Fan

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1187 on: June 26, 2015, 08:01:29 PM »
Rafi,
You've set a whole new standard, my friend.  It's been an absolute pleasure to follow along and watch this beautiful bike be restored.  Well done, man, well done!
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline Stev-o

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1188 on: June 26, 2015, 09:07:16 PM »
Absolutely incredible rebuild, looks better than it did new!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MRieck

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1189 on: June 27, 2015, 05:57:19 AM »
That's one stunning motorcycle Rafi....just don't be afraid to ride it. ;D
Owner of the "Million Dollar CB"

Offline tweakin

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1190 on: June 29, 2015, 06:13:30 AM »
Exceeds my expectations Rafi!  It turned out beautiful!

Offline nvr2old

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1191 on: June 29, 2015, 09:44:57 AM »
Quite possibly the nicest restoration (and beyond) of any CB750 I've ever seen.  That bike is stunning.  The bar has been re-set, for sure.
'76 CB550F-'72 XL250-'82 MB5-'82 CX500 Turbo-'77 naked Goldwing-'75 CB400F cafe'-'79 Suzuki GS1000S..hey, it's a Wes Cooley..

Offline edwardmorris

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1192 on: June 29, 2015, 09:47:39 AM »
Thank you all, for the kind words. Means a lot coming from people who's work inspires mine, I really appreciate it.

Now, who wants to come help me vacuum sync them carbies ;D ;D ;D

Offline riffman12

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1193 on: June 29, 2015, 10:11:06 AM »
wow that's an incredible transformation.

Inspiration for a new owner!

Offline HondaMan

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1194 on: June 29, 2015, 05:23:37 PM »
Wow, what a head-turner, Rafi! You're makin' my K2 jealous...

The tune question you asked: if the 2-3 (or 1-4) timing is too advanced, the bike will idle high when warmed up, and won't settle to a steady idle even when turning the screw back down. The best bet: just reduce the points gap a little bit on the 2-3 side until you can get it to idle enough at 900-1100 RPM that you can then set the 1-4 points. Start by making their gap .014", then rotate the whole plate to get it on the "F" mark. After that, see where the 2-3 side ended up. Hopefully it will be somewhat retarded, if the points gap is less than .014". Then you can stop and [re]set it to .014" and fire it up under the timing light again to see where it "went". If it is so far away that the marks won't line up between .012" and .016" of points gap, then there's something awry with either the baseplate (like, is it loose in the holders around its edges?) or the points themselves. If the points are TEC, this could be a first...

With highly advanced timing on either (or both) sides, the K0-K2 (early) bikes will fire up w/o choke on a warm day. The difference is seen in the carbs: the 657A carbs are always rich at low speed up to 1100 RPM, due to the early air passage in the idle screws' tips and a different size of idle air feed hole. This got smaller in the later K2 (657B carbs) and the choke became more important. Once you get the timing right on, the air screws may have to go in to 15/16 or 7/8 turn (instead of 1 turn) to get the idle leaned out enough to not rev up after warmup.
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

Link to website: www.SOHC4shop.com

Offline jerry h

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1195 on: June 29, 2015, 08:20:31 PM »
Wow -  congratulations on a beautiful restoration.  I admire your dedication and perseverance!  Hope you had as much fun doing the work as we all had following along ;D

"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: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1196 on: June 29, 2015, 09:21:08 PM »
Thank you all, for the kind words. Means a lot coming from people who's work inspires mine, I really appreciate it.

Now, who wants to come help me vacuum sync them carbies ;D ;D ;D
Do you not know how, or not have gauges?
I know how in theory, have Morgan Carbtune and a remote tank ready, just want someone with experience watch over/help out with the fine tuning stuff, I really want to try the "CB750 glass of water test" ;D ;D

Offline edwardmorris

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1197 on: June 29, 2015, 09:30:36 PM »
Wow, what a head-turner, Rafi! You're makin' my K2 jealous...

The tune question you asked: if the 2-3 (or 1-4) timing is too advanced, the bike will idle high when warmed up, and won't settle to a steady idle even when turning the screw back down. The best bet: just reduce the points gap a little bit on the 2-3 side until you can get it to idle enough at 900-1100 RPM that you can then set the 1-4 points. Start by making their gap .014", then rotate the whole plate to get it on the "F" mark. After that, see where the 2-3 side ended up. Hopefully it will be somewhat retarded, if the points gap is less than .014". Then you can stop and [re]set it to .014" and fire it up under the timing light again to see where it "went". If it is so far away that the marks won't line up between .012" and .016" of points gap, then there's something awry with either the baseplate (like, is it loose in the holders around its edges?) or the points themselves. If the points are TEC, this could be a first...

With highly advanced timing on either (or both) sides, the K0-K2 (early) bikes will fire up w/o choke on a warm day. The difference is seen in the carbs: the 657A carbs are always rich at low speed up to 1100 RPM, due to the early air passage in the idle screws' tips and a different size of idle air feed hole. This got smaller in the later K2 (657B carbs) and the choke became more important. Once you get the timing right on, the air screws may have to go in to 15/16 or 7/8 turn (instead of 1 turn) to get the idle leaned out enough to not rev up after warmup.

Thanks Mark!

I had the points gap set to 0.014" at the widest open point before I did the static timing. With the strobe light, 1-4 were a hair advanced, 2-3 were off a lot more. I adjusted the 1-4 first and then 2-3 at about 8-900 RPMs. It was idling at nearly 1800 after warm up but I was able to bring it down with the idle adjuster. Checked with the strobe light again, and 1-4 are lined up nicely, but somehow the 2-3 has a teeniest bit of a "wobble"?? but its pretty close to lined up. What I didn't do was measure the points gap again. With the F marks lined up and the plate locked in place, can I readjust the points gap without messing up the timing?

I can already tell that the idle and firing noise sounds a lot better than it did at first start, so I know its getting better, just want it dialed in fully before installing the HM Ignition.

Offline edwardmorris

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK
« Reply #1198 on: June 29, 2015, 09:35:02 PM »
Wow -  congratulations on a beautiful restoration.  I admire your dedication and perseverance!  Hope you had as much fun doing the work as we all had following along ;D
Thanks Jerry! It has been a lot of fun, made a lot of good friends and learnt a whole lot! I'm liking tinkering with the carbs and the points too! But I'll be honest, I miss the convenience of a fuel injected turn key and ride bike ;)

Offline Bootsey

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Re: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK -- PIX ON PAGE 50
« Reply #1199 on: June 29, 2015, 09:54:49 PM »
That's one hell of a transformation, kudos!