Author Topic: 1976 Honda CB750K First Build  (Read 23158 times)

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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #50 on: February 16, 2016, 05:58:10 PM »
Just a note on your seat, if it's yoga mats or the like then i wouldn't even bother.  I did that and was about same thickness as yours and ended up ripping it off, it was fine for 30mins but after that the mats would not rebound and it was soooo uncomfortable.  You can see in the pic how it looks moulded to my butt, lol
I'm using a closed cell foam made for upholstery seats and such. i have a buddy who does a lot of seats like this and so far no problems. but thanks for the tips anyways
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #51 on: February 16, 2016, 05:59:14 PM »
That engine is looking very nice!
thank you, i appreciate it. a lot of work that is paying off id say
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Offline jaycox

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Re: 1976 Honda CB750K First Build
« Reply #52 on: February 16, 2016, 08:06:58 PM »
Just a note on your seat, if it's yoga mats or the like then i wouldn't even bother.  I did that and was about same thickness as yours and ended up ripping it off, it was fine for 30mins but after that the mats would not rebound and it was soooo uncomfortable.  You can see in the pic how it looks moulded to my butt, lol
I'm using a closed cell foam made for upholstery seats and such. i have a buddy who does a lot of seats like this and so far no problems. but thanks for the tips anyways

Cool I wasn't sure if it was the same style of cheap mats i used.  Sounds like good stuff.  On another note I really like your self made tail section, one of the more balanced ones I've seen done.  Kudos

Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #53 on: February 16, 2016, 08:25:52 PM »
Just a note on your seat, if it's yoga mats or the like then i wouldn't even bother.  I did that and was about same thickness as yours and ended up ripping it off, it was fine for 30mins but after that the mats would not rebound and it was soooo uncomfortable.  You can see in the pic how it looks moulded to my butt, lol
I'm using a closed cell foam made for upholstery seats and such. i have a buddy who does a lot of seats like this and so far no problems. but thanks for the tips anyways
thanks. took forever but the lines came out straight and everything was well worth it
Cool I wasn't sure if it was the same style of cheap mats i used.  Sounds like good stuff.  On another note I really like your self made tail section, one of the more balanced ones I've seen done.  Kudos
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #54 on: February 19, 2016, 02:30:15 PM »
SHE'S LOOKING GOOD!!! got the engine rebuilt, and reassembled for the most part. still waiting on the stator cover gasket. and i still need to sand down the fins on the cylinder. and a few more details but so far I'm glad with how it's turning out.
« Last Edit: February 19, 2016, 02:32:29 PM by ponishenko3136 »
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #55 on: February 20, 2016, 04:20:29 PM »
thanks for the tip. i plan on going over everything.
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #56 on: February 23, 2016, 04:14:32 PM »
the heart operation is complete. top end rebuilt, cleaned, painted, assembled. i also finished the carb rebuild and reassembled and temporary put them on the engine to see how it will look. i hope to paint the frame this week and begin the final assemble. getting more and more excited every day. here are some progress pics
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Offline evanphi

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Re: 1976 Honda CB750K First Build
« Reply #57 on: February 24, 2016, 12:44:10 PM »
The sanded fins look KILLER!
--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 #58 on: February 24, 2016, 06:18:36 PM »
thanks, i really appreciate it
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Offline SOHC4 Cafe Racer Fan

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Re: 1976 Honda CB750K First Build
« Reply #59 on: February 24, 2016, 08:21:43 PM »
The sanded fins look KILLER!

Nicely done!  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)
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"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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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #60 on: February 25, 2016, 08:29:03 PM »
finished up sanding the bondo on the frame and primered it today. hope to paint it next week. i also got my velocity stacks in and tried them on, i like how they look. i also purchased a sewing machine and some vinyl and started practicing sewing my own seat. i did a diamond stitch and just a regular straight stitch. I'm not sure what i want to do yet, i like how both look. any suggestions anyone? and keep in mind that these are practice runs, I'm still learning, and i hope i can make a semi decent seat for the one i will put on the bike.
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Offline budman

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Re: 1976 Honda CB750K First Build
« Reply #61 on: February 26, 2016, 06:28:26 AM »
Great looking build so far.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #62 on: February 26, 2016, 10:19:26 AM »
Whichever pattern you choose for your seat, reduce the scale of the pleats. It will make the seat look much better and not so "DIY" when you're done.  :)
thanks i'll do that. i thought the same thing. good thing they're practice runs lol
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #63 on: February 26, 2016, 10:19:49 AM »
Great looking build so far.
thank you i appreciate that
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #64 on: March 01, 2016, 08:11:36 PM »
painted the frame. i used auto grade paint and clear since i dont have a powder coating oven big enough for frames yet but it turned out great.
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Offline budman

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Re: 1976 Honda CB750K First Build
« Reply #65 on: March 02, 2016, 08:16:57 AM »
Looks good.  What brand of paint did you use?  I painted my frame too.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #66 on: March 02, 2016, 05:15:23 PM »
thank you. i used lesonal paint and transtar clear coat.
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #67 on: March 02, 2016, 05:16:19 PM »
not much progress but just another pic update. the frame is dry and i hope to start putting her back together as i can
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Offline evanphi

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Re: 1976 Honda CB750K First Build
« Reply #68 on: March 03, 2016, 07:13:31 AM »
How are you planning on closing up your gas tank? Did you remove the original flap lid and the neck?

PS your rear wheel is on backwards. ;D
--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 #69 on: March 03, 2016, 03:08:11 PM »
How are you planning on closing up your gas tank? Did you remove the original flap lid and the neck?

PS your rear wheel is on backwards. ;D
haha didn't even look at that but it was for picture purposes anyways lol. and ya i cut the old cap off and bought a new one that i will put on after paint
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #70 on: March 03, 2016, 03:13:02 PM »
well, today i had a pretty productive day. put the engine in the frame, and put the wheels on. got myself a roller, and now that the "hard" stuff is done, it's time to work on the easy things, you know like electrical and stuff like that  ;) but here are some pics of how i got it right now
« Last Edit: April 27, 2016, 03:23:30 PM by ponishenko3136 »
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #71 on: March 03, 2016, 03:15:11 PM »
wasn't abe to post more pics in the last post for some reason, but heres more
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Offline ponishenko3136

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Re: 1976 Honda CB750K First Build
« Reply #72 on: March 03, 2016, 03:19:48 PM »
now for some help. i have a mac 4-1 exhaust. can anyone help me how this goes on? the connector on the exhaust dont fit over the stock silver chrome things that go to the engine. i tried putting the mac exhaust without the stock tips on but they seem to long for the screws to fit properly. how would i mount this exhaust? thanks for any help
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Offline Lammers000

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Re: 1976 Honda CB750K First Build
« Reply #73 on: March 03, 2016, 05:11:55 PM »
I havent had experience with installing one of the MAC system yet, but I believe the exhaust studs in the cylinder head should pop through the flanges that are hard welded to the exhaust?
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Offline seanbarney41

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Re: 1976 Honda CB750K First Build
« Reply #74 on: March 03, 2016, 06:10:32 PM »
now for some help. i have a mac 4-1 exhaust. can anyone help me how this goes on? the connector on the exhaust dont fit over the stock silver chrome things that go to the engine. i tried putting the mac exhaust without the stock tips on but they seem to long for the screws to fit properly. how would i mount this exhaust? thanks for any help
you don't use the original spigots.  Save them for if you change exhausts in the future.  Also, the original spigot screws are too short.  MAC supplies socket head cap screws with their pipes.  If you are missing them, you will have to source these...or better yet get studs and nuts, as already posted    ...and don't forget some new copper crush gaskets.
If it works good, it looks good...