Author Topic: Phaedrus: CB750 RestoMod - Update: 09/23/21 w/ new video  (Read 873124 times)

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Offline SOHC4 Cafe Racer Fan

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Re: Phaedrus: CB750 RestoMod - Update: 02/23/20 w/o new pics
« Reply #4575 on: May 21, 2020, 11:31:56 AM »
What can I say, I'm running out of projects to do around the house and it's been raining a lot here!
;D
I think this might be the longest thread on the forum -- at least in the top 5.  That's not a knock against it mind you.
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 MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 02/23/20 w/o new pics
« Reply #4576 on: May 30, 2020, 10:38:05 AM »
Hi Ron,

I stumbled upon this thread a few days ago and have thoroughly enjoyed reading through it - all of it!  It's so much more than a bike build thread thanks to your willingness to include your life experiences.  I think the interest this thread has drawn is as much about you as it is Phaedrus.  Thanks for sharing.

Regards,
Brad

Wow, thanks for the response. I know the thread has been beneficial to many in many ways. It sure isn't ending up the way I originally envisioned. So, we'll see what the future brings.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 02/23/20 w/o new pics
« Reply #4577 on: May 30, 2020, 10:39:39 AM »
Hard to believe its been months since we've been able to wrench on the bike.....when things lift up again we'll need a whole day to remember what the heck we were doing when we left off  ;D

I know! I'm afraid to go out in the shop, what will I find?
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 02/23/20 w/o new pics
« Reply #4578 on: August 09, 2020, 09:50:57 AM »
CBJoe came over and degreed in our camshaft, a CX-7 from CycleX. I watched him, but I doubt if I could do it on my own. Now we're down to replacing the left side engine covers, valve cover, installing the carbs and finishing up. Guess I'll park it for a while. Next step would be a DYNO run, but I'll need help, or rather, I'll need somebody to load it, drive it and me over there, sit with us till its done, then take us home.

Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline grcamna2

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4579 on: August 11, 2020, 10:37:58 PM »
Phaedrus is a sweet machine Ron.
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline CBJoe

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4580 on: August 12, 2020, 08:26:40 AM »
looking forward to hearing the engine fire up again!
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline PeWe

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4581 on: August 12, 2020, 09:31:54 AM »
Wow!
This project is still ongoing with upgrades!
I can fully understand the feeling since my K6 has been a project rebuilding it since first winter after purchase 1979, used it to late 1990, parked, back on the road 2014 after 2 years of restore/repair. Updated constantly after that.

Now running fine but will get more changes.

- CX-7 cam is the new update?
High lift on both In and Ex.
Aiming for +90 hp?  ;)

Good luck for a good dyno result!
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4582 on: August 12, 2020, 10:47:39 AM »
Ron, I beat you and it's only taken us about 10 years. LMAO. Labor of love with some hate thrown in. My 915, on it's 3rd leg haha, is on the road and it is one bad mofo! I have not found access to a dyno yet for fine tuning. A new Indian shop here says yes they have a dyno but nothing on it over 25 years old.  I don't think they'd count it as being new however. I told them I just want some pulls with the results and won't let them do any tuning if that's what they think. No matter. I put a feeler out to another place without a response. You better get it going or I'll have the 1000 parts bike carbs dialed in too. It just made it's first ever maiden voyage Monday. 
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4583 on: August 13, 2020, 08:17:45 AM »
Thanks for the kind words and encouragement everyone!. I see that the pics from my previous posts have dropped the negative legend and are now visible. I guess photobucket did that. I'm still working with them as my account isn't allowing me to upload more pics. But, they've given me some tips to try. They really bit off a lot when they took everyone hostage and raised their rates. I see they've dropped about half of their staff including the execs who came up with that great idea. They have since repriced everything and its more reasonable.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4584 on: August 13, 2020, 08:22:47 AM »
Wow!
This project is still ongoing with upgrades!
I can fully understand the feeling since my K6 has been a project rebuilding it since first winter after purchase 1979, used it to late 1990, parked, back on the road 2014 after 2 years of restore/repair. Updated constantly after that.

Now running fine but will get more changes.

- CX-7 cam is the new update?
High lift on both In and Ex.
Aiming for +90 hp?  ;)

Good luck for a good dyno result!
I've lost track of which came first the cam or the pipe or the carbs, etc. I think we had the CX 7 at the last Dyno run. The chronology has escaped me. But, there's the cam, new piston kit from CycleX, coated and deeper pockets, jugs to match.

Yes the goal is 90hp. Since I can't ride anymore, and with covid, I probably wouldn't if I could, there is no pressure to finish. Though I would like to get to a point where we can say it is.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline Terry in Australia

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4585 on: August 14, 2020, 02:39:26 AM »
Wow!
This project is still ongoing with upgrades!
I can fully understand the feeling since my K6 has been a project rebuilding it since first winter after purchase 1979, used it to late 1990, parked, back on the road 2014 after 2 years of restore/repair. Updated constantly after that.

Now running fine but will get more changes.

- CX-7 cam is the new update?
High lift on both In and Ex.
Aiming for +90 hp?  ;)

Good luck for a good dyno result!
I've lost track of which came first the cam or the pipe or the carbs, etc. I think we had the CX 7 at the last Dyno run. The chronology has escaped me. But, there's the cam, new piston kit from CycleX, coated and deeper pockets, jugs to match.

Yes the goal is 90hp. Since I can't ride anymore, and with covid, I probably wouldn't if I could, there is no pressure to finish. Though I would like to get to a point where we can say it is.

Good job Ron. Have you got kids? If not, I'm up for adoption? ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4586 on: August 29, 2020, 02:46:56 PM »
Thanks TiA. Yeah I wish I had a son, he could be my caretaker.  :D :D :D
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4587 on: August 29, 2020, 02:49:32 PM »
We got all the peripheral pieces back on. Engine side covers, cam cover, carbs, throttle cable vent tubes etc.

Next step is fire it up.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline CBJoe

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4588 on: August 31, 2020, 02:13:21 PM »
Here you go Ron! 

Cant ask for a smoother first start!


Nice low idle ;)





'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline RAFster122s

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4589 on: August 31, 2020, 03:56:56 PM »
Amazing how that first video changed to such a purring motor in the second video.  Congrats guys!  Bet Ron's smile lasted the rest of the day... easily.
David- back in the desert SW!

Offline grcamna2

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4590 on: August 31, 2020, 06:52:09 PM »
Tuned and warmed-up  8)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4591 on: August 31, 2020, 10:20:42 PM »
Sounds like it should finally, at least better than what I remember. Hope it dynos as good as it sounds. Great job guys and even greater to see the smile on Ron's face.
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Tintop

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4592 on: September 01, 2020, 04:49:30 AM »
Sounds like it should finally, at least better than what I remember. Hope it dynos as good as it sounds. Great job guys and even greater to see the smile on Ron's face.

+1
1977 CB550/4 Cafe - Speed Warrior / BOTM 03/11
1980 CB750F (project)
Whittaker GBF Vintage Racing Sidecar (XS750 power) - ITG / 151's / CMR Racing Products (SOLD)
1976 CB400 SS - stock / BOTM 04/11 (SOLD)
1973 CB750 K - basket case (SOLD)
77 CB550 Cafe build
550/750 Filter Thread
Sidecar Rebuild Thread

Offline MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 08/9/20 w/o new pics
« Reply #4593 on: September 01, 2020, 05:17:11 AM »
Thanks to CBJoe, completely due to his efforts. That first video was the first push of the starter button, completely cold and lifeless for nearly a year or more. The lope in the idle may be from the lumpy lump cam. Makes it sound like a old time chriscraft speedboat.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline CBJoe

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Re: Phaedrus: CB750 RestoMod - Update: 08/30/20 w/ new video
« Reply #4594 on: September 01, 2020, 06:49:13 AM »
I completely agree that that first start up sounded much better than it did last year.  Also, once warmed up it also just sounded much better than ever before.  Wish I could get my bike to idle that low :)
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline MCRider

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Re: Phaedrus: CB750 RestoMod - Update: 08/30/20 w/ new video
« Reply #4595 on: September 27, 2020, 02:55:30 PM »
I completely agree that that first start up sounded much better than it did last year.  Also, once warmed up it also just sounded much better than ever before.  Wish I could get my bike to idle that low :)

Joe was able to put some miles on Phaedrus, about 7 or so. All systems GO!

A tasty video to follow.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline CBJoe

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Re: Phaedrus: CB750 RestoMod - Update: 08/30/20 w/ new video
« Reply #4596 on: September 27, 2020, 03:50:48 PM »
Here you go...had to edit it up into a few clips.  Bike handled great and had a noticeably more umph/grunt through the gears and rev range than before.  So initially it seems to like the re-jet.  Maybe we can get a few more miles on it and then get to the Dyno.  Was a lot of fun for sure  ;D






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« Last Edit: September 27, 2020, 10:05:06 PM by CBJoe »
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Phaedrus: CB750 RestoMod - Update: 08/30/20 w/ new video
« Reply #4597 on: September 27, 2020, 07:41:58 PM »
Congrats guys! It took both of us a while to get here.
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

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Re: Phaedrus: CB750 RestoMod - Update: 08/30/20 w/ new video
« Reply #4598 on: September 27, 2020, 09:14:34 PM »
Congrats! Great to see Phaedrus out stretching her legs.
David- back in the desert SW!

Offline andy750

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Re: Phaedrus: CB750 RestoMod - Update: 08/30/20 w/ new video
« Reply #4599 on: September 29, 2020, 03:27:40 AM »
Congrats! Great to see Phaedrus out stretching her legs.

+1 congratulations!
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350