Author Topic: 1976 Honda CB750K First Build  (Read 21458 times)

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Offline ponishenko3136

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1976 Honda CB750K First Build
« on: March 26, 2015, 09:48:27 pm »
hey  everyone, I'm new here. 22 years so I'm new to this bike building world even though I've always been fascinated by old machines. this is my 1976 cb750k i just acquired. doesn't look like much but i got plans for it. progress will be slow, when i get money and time to work on it i will but i hope you enjoy my build. and I'm looking forward to hearing tips, advice and critique seeing as how i don't know much. thanks in advance
« Last Edit: March 31, 2015, 11:43:09 am by ponishenko3136 »
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Offline SOHC4 Cafe Racer Fan

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Re: 1976 Honda CB750K
« Reply #1 on: March 26, 2015, 10:31:21 pm »
Decent roller -- "it looks better than it did."  ;)

Did you get a motor with it??
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 evanphi

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Re: 1976 Honda CB750K
« Reply #2 on: March 27, 2015, 07:20:39 am »
Looks like it will be a brat/tracker style? Hope you got an engine too!
--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 ponishenko3136

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Re: 1976 Honda CB750K
« Reply #3 on: March 27, 2015, 09:05:21 am »
Ya I got a motor with it. The previous owent took it out. So i hope it won't be too challenging to put together. And that quote was under a piece of tape I took. I think it looked better though
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Offline ponishenko3136

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Re: 1976 Honda CB750K
« Reply #4 on: March 30, 2015, 05:38:48 pm »
so i had some time after work and i decided id go cut some tabs off...got a little carried away and took it all apart. but I'm not complaining. i cut off what i didn't need but i still have some cleaning up to do. didn't have too much trouble with rusted bolts. forks gave me a bit of a fight but got em off. slow progress but it'll get there
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #5 on: April 10, 2015, 06:58:30 am »
No major progress but i cleaned up all the extra metal after i cut some tabs off. ordering some parts for the mock up before i i get the frame ready for paint.
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #6 on: April 23, 2015, 07:02:13 pm »
got my hoop in today and had some time so i welded it on, and did a little more frame work. some more mock up to do. and then to get it ready for paint. might work on the seat pan too
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Offline calj737

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Re: 1976 Honda CB750K First Build
« Reply #7 on: April 24, 2015, 04:39:38 am »
Might invest in a frame kit now before painting. It will greatly pay dividends down the road during install and servicing of your motor.

And wait on the frame painting. At least until you've finalized your mock up and tested your engine in place. Painting a frame is quick and easy but it suffers the most during builds as it gets knicked and knocked about.
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"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 evanphi

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Re: 1976 Honda CB750K First Build
« Reply #8 on: April 24, 2015, 05:37:34 am »
+1 on the frame kit. I did mine for a top-end restore... but when it comes time to remove the engine at some point, it will be a godsend!
--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 SOHC4 Cafe Racer Fan

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Re: 1976 Honda CB750K First Build
« Reply #9 on: April 24, 2015, 09:06:36 am »
Yes. I cannot agree more.
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 ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #10 on: April 27, 2015, 08:25:54 pm »
thanks for all the info and advice. where would be a good place to get a frame kit. and yes I'm waiting until I'm done with everything before paint. i was gonna powder coat but the closest place to me want to much in my opinion. so ill just paint it i think
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Offline evanphi

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Re: 1976 Honda CB750K First Build
« Reply #11 on: April 28, 2015, 04:59:49 am »
thanks for all the info and advice. where would be a good place to get a frame kit. and yes I'm waiting until I'm done with everything before paint. i was gonna powder coat but the closest place to me want to much in my opinion. so ill just paint it i think

Send a PM to 754 aka Frank.

You can check my build thread for some pics.
--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 ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #12 on: May 06, 2015, 07:26:00 pm »
made my first seat pan but didn't like how it turned so i gave it another shot. i like this one a bit more than the first. now i need to get it ready for paint and get the seat done. i still need to trim up the edges do a little more work on it but thats the general idea.
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Offline evanphi

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Re: 1976 Honda CB750K First Build
« Reply #13 on: May 07, 2015, 08:32:52 am »
Good job. I'd like to try this some time.
--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 ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #14 on: May 07, 2015, 07:15:00 pm »
thank you. its not too hard. I've never worked with fiberglass before so i had to get the hang of it. youtube how to build a cafe racer seat, and its the dime city cycles one. but what i learned as i was doing it, use smaller pieces of cloth. in the video he uses one big piece, thats what i did at first but its a lot harder if you you've never done it before. but ya give it a shot. its another thing i can say i did by myself
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Offline evanphi

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Re: 1976 Honda CB750K First Build
« Reply #15 on: May 08, 2015, 09:55:00 am »
Yes I have worked with glass before, and I've seen the video too... Very straightforward project, just needs the time taken to do it right!
--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 ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #16 on: May 08, 2015, 06:46:05 pm »
Yes. I've learned so far it's better to take the time and do it right instead of doing it again.
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #17 on: May 08, 2015, 06:50:01 pm »
Here's how I will mount the seat pan to the frame. I will build and weld brackets to the frame for the bolts. I welded he bolts to the little bracket piece between both bolts to keep them from spinning when I tighten them. Then fiberglassed over them. I'm done with the glass work. Next step is to make it pretty
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #18 on: May 14, 2015, 03:47:36 pm »
done with trimming the seat pan and making it work. and put the first layer of bondo on. progress is slow but step by step is how you do it
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #19 on: June 08, 2015, 10:56:05 am »
a little update on my progress. got some parts in. the rear shocks from cyclexchange and all balls bearings for both wheels and the triple tree. going to start the assembly before disassembly soon
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #20 on: June 24, 2015, 04:26:13 pm »
another update...got the motor in for more mock up. working on the tank and seat, trying to get it perfect. and also bought a sandblaster and powder coating gun. lots of parts coming in to install soon
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Offline SOHC4 Cafe Racer Fan

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Re: 1976 Honda CB750K First Build
« Reply #21 on: June 24, 2015, 04:40:36 pm »
Do NOT sandblast the engine unless you are going to do a complete disassembly and clean it multiple times with liquid and compressed air.
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 ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #22 on: June 25, 2015, 03:53:08 pm »
ya i wasn't planning too, i know it wouldn't be good having leftover media in the engine lol but thank you for letting me know anyways. i appreciate it
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Offline SOHC4 Cafe Racer Fan

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Re: 1976 Honda CB750K First Build
« Reply #23 on: June 25, 2015, 05:13:25 pm »
ya i wasn't planning too, i know it wouldn't be good having leftover media in the engine lol but thank you for letting me know anyways. i appreciate it

You'd be surprised what people do.  It is a PITA to get every grit of sand out of every crevice.
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 ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #24 on: July 13, 2015, 02:42:31 pm »
did a few more things, got the tray/pan done for the battery and electrical. made some mounting brackets for the rear sets, did some powder coating (still need to some more parts) and laced the wheel, and now gotta true it and do the rear wheel. mounted the swingarm and rear shocks. progress is slowly moving along
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