Author Topic: 1972 CB750K2 (start from scratch) project. Cases back together  (Read 102709 times)

0 Members and 5 Guests are viewing this topic.

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,614
  • Big ideas....
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #275 on: March 11, 2015, 04:56:05 AM »
Nice. Keep the revs up Dave to improve oil pressure i.e. turn idle up to 2500 or so. Use a fan to cool the engine. You want as much oil as you can get to go to the cam/rockers and bearings. ;)
Owner of the "Million Dollar CB"

Offline Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #276 on: March 11, 2015, 07:38:02 AM »
Nice. Keep the revs up Dave to improve oil pressure i.e. turn idle up to 2500 or so. Use a fan to cool the engine. You want as much oil as you can get to go to the cam/rockers and bearings. ;)

Thanks! Really want to break this in right. I kicked it over with plugs out for what seemed like forever until I started seeing oil with valve inspection covers off. I'm going to give it a proper break in Thursday or Friday. I just had to hear it last night though ;D

Offline rickmoore24

  • Be led by your dreams, not pushed by your problems.
  • Hot Shot
  • ***
  • Posts: 747
  • I <3 SOHC4's
    • Rosenbard Films
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #277 on: March 11, 2015, 10:05:03 AM »
Sounds awesome!!
1972 CB750 K2 (Daily Runner)
1972 CB750 K2 (Sold)
1973 CB750 K3 (Hardtail 836cc)
1998 CBR F3 - R.I.P., went down on the 101 in Calabasas, Ca.
1995 EG6

Offline Ravie

  • Definitely not a
  • Hot Shot
  • ***
  • Posts: 630
  • Soul to Soul
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #278 on: March 11, 2015, 07:37:02 PM »
Yyyyeeeeaaaahhhhhhh!!!

I bought the oil i plan to use to break it in with today. I'm a few weeks out easily, but getting there for sure. Had a setback with the seat i bought that i thought would be easier to fit than it is, so I'm looking at other options now, which sucks donkey balls.
1975 CB750K5 Rebuild in progress.
http://forums.sohc4.net/index.php?topic=139072.0

Offline Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #279 on: March 14, 2015, 07:54:17 PM »
Couple last pics before I leave town for a few days. Coming back Monday, going to take to DMV on Tuesday for registration and VIN inspection for out of state title. Then should be good to go.

Here's a couple pics for Gordon, mainly to show frame kit...


Took it for first ride around neighborhood, rides sooooo nice! Can't wait to really take it out!




Sent from my iPhone using Tapatalk

Offline Ravie

  • Definitely not a
  • Hot Shot
  • ***
  • Posts: 630
  • Soul to Soul
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #280 on: March 14, 2015, 07:59:36 PM »
OH MY GAWD.  That thing looks so friggin nice. Awesome job, Dave. Freakin killer. I'm so jealous!
1975 CB750K5 Rebuild in progress.
http://forums.sohc4.net/index.php?topic=139072.0

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,556
  • SOHC/4 Member #1235
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #281 on: March 14, 2015, 10:11:35 PM »
Amazing job, Dave. Title and emblems, is that all?
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 Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #282 on: March 14, 2015, 10:18:24 PM »
Amazing job, Dave. Title and emblems, is that all?
Yeah. Well I gotta get those exhaust heat shields too.

Offline hotdog

  • Hot Shot
  • ***
  • Posts: 345
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #283 on: March 14, 2015, 11:34:43 PM »
Hi Dave - the bike looks beautiful and the pipes sound great.
Can you tell me where the oil lines came from - thanks.
« Last Edit: March 14, 2015, 11:42:32 PM by hotdog »
Instagram - LUMPY CAM MOTORCYCLES
FB - LUMPY CAM Motorcycles

Offline Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #284 on: March 15, 2015, 01:05:28 AM »
Hi Dave - the bike looks beautiful and the pipes sound great.
Can you tell me where the oil lines came from - thanks.
Found them on ebay. Great seller. Will send info if you like.

Offline hotdog

  • Hot Shot
  • ***
  • Posts: 345
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #285 on: March 15, 2015, 01:09:30 AM »
Great thanks
Instagram - LUMPY CAM MOTORCYCLES
FB - LUMPY CAM Motorcycles

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,518
  • Central Texas
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #286 on: March 15, 2015, 01:43:14 PM »
Looks fantastic, great job.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,614
  • Big ideas....
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #287 on: March 15, 2015, 02:00:58 PM »
Very nice work Dave. Hope you have plenty of time to enjoy her. She should perform as good as she looks. ;)
Owner of the "Million Dollar CB"

Offline Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #288 on: March 15, 2015, 02:10:45 PM »
Very nice work Dave. Hope you have plenty of time to enjoy her. She should perform as good as she looks. ;)
Of course it will with that awesome cylinder head! 8)

Offline Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #289 on: March 17, 2015, 05:23:55 PM »
Went to ride bike to DMV to register this morning. Oil light came on abou halfway there. Pulled over, tried disconnecting wire to check for short. Nope. Took off inspection covers and saw top end was getting oil, even sprayed out when I started it again. Gotta be the switch. Luckily I was right next to autozone and was able to find out they had a sending unit that fits. Duralast part number PS100. Got it in there and wired. So far, so good. No funny noises  :o

Offline edwardmorris

  • Youngish
  • Old Timer
  • ******
  • Posts: 3,141
  • Do not cause harm, nor respond to harm with harm.
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #290 on: March 17, 2015, 05:38:11 PM »
Glad you solved it quick. Good to know there are alternatives. Here's another one

http://forums.sohc4.net/index.php/topic,144354.msg1642681.html#msg1642681

Offline Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #291 on: March 17, 2015, 09:17:12 PM »
After HOURS at DMV, dealing with title issues... I got my title and plates!!!! Tank and side cover emblems should be here Thursday. Then what? Haha

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,556
  • SOHC/4 Member #1235
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #292 on: March 18, 2015, 09:54:05 AM »
Slap on those emblems, tune and ride it like you stole 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 Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #293 on: March 19, 2015, 08:22:36 PM »
Got my emblems today. The white just stood out too much, so my wife mixed together some enamel paint to get the color to match tank stripe



Sent from my iPhone using Tapatalk

Offline Ravie

  • Definitely not a
  • Hot Shot
  • ***
  • Posts: 630
  • Soul to Soul
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #294 on: March 19, 2015, 08:25:58 PM »
Your wife wins.
1975 CB750K5 Rebuild in progress.
http://forums.sohc4.net/index.php?topic=139072.0

Offline timbo750

  • Expert
  • ****
  • Posts: 759
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #295 on: March 19, 2015, 09:23:36 PM »
Maybe she is feeling guilty gor saying you would never get it going

Offline Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #296 on: March 19, 2015, 10:48:05 PM »
Maybe she is feeling guilty gor saying you would never get it going

Haha! She definitely doesn't feel guilty ;D

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,556
  • SOHC/4 Member #1235
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #297 on: March 20, 2015, 07:48:26 AM »
Great custom touch.

Don't hold out on some beauty shots.
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 Davez134

  • Expert
  • ****
  • Posts: 1,485
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #298 on: March 20, 2015, 06:52:12 PM »
Great custom touch.

Don't hold out on some beauty shots.

Pictures coming soon. Wife said she's going to get some pics for me with her nice camera and good lighting, which I know nothing about

Offline Old Moe Toe

  • Hot Shot
  • ***
  • Posts: 595
Re: 1972 CB750K2 (start from scratch) project. Small leak!!! Damn!
« Reply #299 on: March 22, 2015, 01:45:31 AM »
Davez134.
I'd be interested to hear your thoughts about how all the modifications you have made to your engine have improved the performance and enjoyment of riding the machine? Was it all worth it?.
Have followed your build story from the other side of the planet with interest.
Cheers