Author Topic: 1978 CB750K skill builder (read: low budget)  (Read 9730 times)

0 Members and 1 Guest are viewing this topic.

Offline seanbarney41

  • not really that much younger than an
  • Really Old Timer ...
  • *******
  • Posts: 8,088
Re: 1978 CB750K skill builder (read: low budget)
« Reply #125 on: December 31, 2017, 04:03:06 pm »
yeah, looks like you have some kind of parts/year mis-match.  You ever check hose engine and frame numbers?

I think jgger meant BobR, not Bobby R...2 different dudes
If it works good, it looks good...

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #126 on: December 31, 2017, 04:09:08 pm »
yeah, looks like you have some kind of parts/year mis-match.  You ever check hose engine and frame numbers?

I think jgger meant BobR, not Bobby R...2 different dudes
Yeah, that's one of the first things I did. It's for sure a 78k motor and 78k frame according to vin numbers. I have its twin in the other garage, so as soon as I get home from the gym (yes I'm working out before all the crap I'm gonna consume later!) I'm going to take some measurements. The other one lines up fine.


Sent from my iPhone using Tapatalk

Online jgger

  • Expert
  • ****
  • Posts: 963
Re: 1978 CB750K skill builder (read: low budget)
« Reply #127 on: December 31, 2017, 04:10:14 pm »
Yea, I knew it was something like that,  forgive an old fart!
"The SOHC4 uses a computer located about 2-3 ft above the seat.  Those sometimes need additional programming." -stolen from  Two Tired

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #128 on: December 31, 2017, 08:25:56 pm »
This is so weird. I measured everything on both bikes and it all looks the same. Tomorrow I am going to take the whole rear assembly from the the complete K8 I have and swap it onto this bike and see if it lines up, then go from there. Ill post some more pictures when its light out again. Done for now, on to New Year's celebrating!

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 28,961
  • Central Texas
Re: 1978 CB750K skill builder (read: low budget)
« Reply #129 on: January 01, 2018, 07:48:27 am »
Hey Dave.....I'm in recuperating mode from NYE so just throwing out some thoughts. 

The '77-78 K's had a longer output shaft so in order to compensate, the sprocket carrier is wider. 

As Sean mentioned, maybe you have mismatched parts. 

I'll be dealing with this on my project as I'm putting a late model motor in a K5 frame.   

Head is hurting, will more booze help?!
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #130 on: January 01, 2018, 08:23:55 am »
I'm still recovering as well. It's weird, like the whole assembly (wheel/hub/sprocket) is shifted over to the left a bit, so its not just the carrier. I though I maybe accidentally mounted the swingers upside down since its asymmetrical, but I just double checked that last night and its right. As soon as I feel like going out to the shop I'm going to take the 2 bikes apart and compare.

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 28,961
  • Central Texas
Re: 1978 CB750K skill builder (read: low budget)
« Reply #131 on: January 01, 2018, 10:56:44 am »
How wide is the axle spacer on the right side?
Mine looks shorter at 28.5 mm...
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #132 on: January 01, 2018, 02:13:14 pm »
I feel dumb, but relieved. It was an optical illusion because I did not have the axle squared up in the rear of the swingarm. The right side was way more forward. As soon as I squared it up using the adjusters, it all looks straight.

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,551
  • SOHC/4 Member #1235
Re: 1978 CB750K skill builder (read: low budget)
« Reply #133 on: January 01, 2018, 08:29:26 pm »
I feel dumb, but relieved. It was an optical illusion because I did not have the axle squared up in the rear of the swingarm. The right side was way more forward. As soon as I squared it up using the adjusters, it all looks straight.

That's a relief!
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)
2014 MV Agusta Brutale Dragster 800
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.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)

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

Online jgger

  • Expert
  • ****
  • Posts: 963
Re: 1978 CB750K skill builder (read: low budget)
« Reply #134 on: January 01, 2018, 10:30:34 pm »
Glad we could help you sort that one out!  ::) yuk yuk :-[

I love an easy fix, even if it includes a helping of humble pie. Glad it wasn't something expensive. ;)
"The SOHC4 uses a computer located about 2-3 ft above the seat.  Those sometimes need additional programming." -stolen from  Two Tired

Offline Godffery

  • Godffery's Garage
  • Expert
  • ****
  • Posts: 972
  • Wisdom brings a realization of how little we know.
    • Godffery's Garage hosted by VinMoto.org
Re: 1978 CB750K skill builder (read: low budget)
« Reply #135 on: January 02, 2018, 02:28:10 am »
 Really dig'n the work your doing there Dave!
I have come up with a cleaner way of mount seat pan if your interested?   (Sorry, unable to post pix or link at the moment)   It eliminates the need for tools to install or remove the seat.

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #136 on: January 02, 2018, 05:14:12 am »
Really dig'n the work your doing there Dave!
I have come up with a cleaner way of mount seat pan if your interested?   (Sorry, unable to post pix or link at the moment)   It eliminates the need for tools to install or remove the seat.

Yeah, I'd love to hear your idea. I have not mounted anything just yet.

Offline Godffery

  • Godffery's Garage
  • Expert
  • ****
  • Posts: 972
  • Wisdom brings a realization of how little we know.
    • Godffery's Garage hosted by VinMoto.org
Re: 1978 CB750K skill builder (read: low budget)
« Reply #137 on: January 02, 2018, 07:44:42 am »
Really dig'n the work your doing there Dave!
I have come up with a cleaner way of mount seat pan if your interested?   (Sorry, unable to post pix or link at the moment)   It eliminates the need for tools to install or remove the seat.

Yeah, I'd love to hear your idea. I have not mounted anything just yet.
Okay, basically the idea uses post & grommets like the side covers.  I make some aluminum posts on the lathe with the back end threaded. Then I locate or install an area in the frame that I can drill & install some stock Honda rubber grommets. (making sure to have the gap spacing between the post & grommet to finish with the seat sitting at the desired height from the frame.) Then I transfer the grommet locations to the seat, drill holes to install the threaded posts. (Ideally you want these to be under the seat cushion so that they are hidden when finished.) 
 I realize this can be difficult to picture just what the heck I'm talking about, so if you PM me, I'll get your email to send some photos.

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #138 on: April 05, 2018, 06:41:31 pm »
I've been busy with other things,(home renovation, landscaping, work) but found some time to do some small things on the bike. Rebuilt and cleaned carbs, most of the wiring done, pamco ignition, new tail light, exhaust installed. Just need to do brakes and finish wiring.









Sent from my iPhone using Tapatalk

Offline seanbarney41

  • not really that much younger than an
  • Really Old Timer ...
  • *******
  • Posts: 8,088
Re: 1978 CB750K skill builder (read: low budget)
« Reply #139 on: April 05, 2018, 07:32:56 pm »
really nice...
crazy thing about that next to last picture...there is some kind of push/handle in the background sticking up and the way the bike blocks the view I thought it was some kind of little sissy bar thing.  Anyway, I'm probly crazy, but I thought that looked cool.
If it works good, it looks good...

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #140 on: April 05, 2018, 09:02:28 pm »
Haha, that's an appliance dolly back there. It does look like part of the bike.

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 28,961
  • Central Texas
Re: 1978 CB750K skill builder (read: low budget)
« Reply #141 on: April 06, 2018, 06:28:30 am »
Lookin good Dave....landscaping in Vegas?   A lot of stone, right?!
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
1978 CB750K skill builder (read: low budget)
« Reply #142 on: April 06, 2018, 07:01:59 am »
Lookin good Dave....landscaping in Vegas?   A lot of stone, right?!

Yeah, lots of stuff that doesn't need water! We bought this house last year, on a half acre. It had lots of grass, leaking half-assed irrigation system, and came with a $500 water bill per month! Water district out here offers $$ per sq/ft of grass you remove and convert to "desert" landscaping. They came out and measured, said removing ours was worth $11,500!! So I just finished doing rock, flagstone and almost 6,000 sq/ft of artificial turf. As soon as they come out and inspect I get my check.




« Last Edit: April 06, 2018, 07:12:46 am by Davez134 »

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 28,961
  • Central Texas
Re: 1978 CB750K skill builder (read: low budget)
« Reply #143 on: April 06, 2018, 07:31:00 am »
Looks great!   And what a deal!! Our frikken water bill is high too during the summer, damn lawn is like a thirsty drunk! [cant get enough]  I have a plan to reduce lawn area and would love artificial turf in the front yard...
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #144 on: April 11, 2018, 05:23:18 pm »
It's alive! I finished most of the wiring, and couldn't resist putting some fuel in it and trying to start it. At first I turned the key, pressed the start button...nothing. Then I remembered unlike my 72, this one has so be in neutral to start, and I hadn't hooked up the neutral switch wire. Once I did that it fired up on the first push of the button. Good oil pressure, sounds strong. Almost finished!

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 28,961
  • Central Texas
Re: 1978 CB750K skill builder (read: low budget)
« Reply #145 on: April 11, 2018, 07:03:58 pm »
Congrats, what a great feeling, isn't it?!
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #146 on: April 12, 2018, 02:51:27 pm »
Yeah, always love hearing an engine run that has been sitting for years! I'm working on the brakes todays I can ride it around the block a few times.

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
1978 CB750K skill builder (read: low budget)
« Reply #147 on: August 05, 2018, 03:19:03 pm »
This project has been on the back burner due to my continuing home renovation project, but I'm just about finished. I have a few issues with electrical to work out (signals not flashing, rear running light not working). Another issue that I'm having is with the rear sets. I have never done them before, but with the clip ons, I needed to. I got rear set brackets from Cognito Moto, and rear sets from slip stream cycles. The problem I'm having is with the right/brake side. The problem is that the brake lever/rearset contacts the splined shaft underneath unless I rotate it to sit higher up (which is not comfortable or natural to use the brake if needed and seems unsafe. I'll post pictures in a bit, but has anyone else dealt with this on  K bike with drum brake and rear sets?

Here's the photos. If the brake lever goes higher than this it just feels awkward. And, in this location there is not enough travel for braking. Maybe it's just me??


Shift lever is fine.
« Last Edit: August 05, 2018, 07:02:56 pm by Davez134 »

Online Davez134

  • Expert
  • ****
  • Posts: 1,458
Re: 1978 CB750K skill builder (read: low budget)
« Reply #148 on: August 05, 2018, 07:11:57 pm »
And, here is tho other project I've been working on, after finishing the yard.
Before:
Shag carpet, sunken living room

Low ceilings, cramped kitchen

Little sliding door

Now:
Footings dug/poured, sunken living room no longer sunken, beam/posts in, trusses cut, and ceiling vaulted. Posts are hidden inside fireplace framing and walls at the ends of the beam. Skylights and windows added, 16 foot sliding door/wall.








Sent from my iPhone using Tapatalk

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,551
  • SOHC/4 Member #1235
Re: 1978 CB750K skill builder (read: low budget)
« Reply #149 on: August 05, 2018, 10:28:48 pm »
You got some skills, Dave.
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)
2014 MV Agusta Brutale Dragster 800
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.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)

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

 

;