Author Topic: Phaedrus: CB750 RestoMod - Update: 09/23/21 w/ new video  (Read 869062 times)

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Offline Ecosse

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Re: Phaedrus II: CB750 "Super Standard" - Update 1/31/10- w new pics
« Reply #1025 on: February 06, 2010, 11:01:33 AM »
the thought that springs to mind is that parts are getting tough to find for these things and anything that can give a component a new lease on life seems reasonable to consider.

performance improvements is icing on the cake imo.
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Offline MCRider

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Re: Phaedrus II: CB750 "Super Standard" - Update 1/31/10- w new pics
« Reply #1026 on: February 07, 2010, 02:46:21 PM »
Nothin to see this week. Organized some more parts bins, made some longer bolts for the handlebar clamps with risers. Started wiring by ffeding switch gear wires thru handlebars, clipping wire loom to frame. Tested out some otor mount bolts.

Using Rob Voxondas doubled rear motor mount, the bolt head hits the oil tank. I think Rob is using a different oil tank. So I cut down a buttonhead for that use and shimmed out the tank. Problem solved.

Office work piling up, had to clear a logjam before Super Duper Bowl and real work tomorrow morning.

Still putting off the final polish on the front hub, just not drawn to the job. Maybe at half time. Tho don't want to miss the Who. 60 year old rock and rollers, who'd a thunk it?
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Offline Ecosse

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1027 on: February 07, 2010, 11:10:05 PM »
the who was pretty good although their voices were not what they use to be. i'll cut them a bit of slack given they've been belting out the tunes for most of my life.  ;D i don't care for medleys (sp?) either but it was a treat to see them play.

good game too.


what's the latest on your tins and paint?
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Offline voxonda

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Re: Phaedrus II: CB750 "Super Standard" - Update 1/31/10- w new pics
« Reply #1028 on: February 07, 2010, 11:14:18 PM »
Nothin to see this week. Organized some more parts bins, made some longer bolts for the handlebar clamps with risers. Started wiring by ffeding switch gear wires thru handlebars, clipping wire loom to frame. Tested out some otor mount bolts.

Using Rob Voxondas doubled rear motor mount, the bolt head hits the oil tank. I think Rob is using a different oil tank. So I cut down a buttonhead for that use and shimmed out the tank. Problem solved.

Office work piling up, had to clear a logjam before Super Duper Bowl and real work tomorrow morning.

Still putting off the final polish on the front hub, just not drawn to the job. Maybe at half time. Tho don't want to miss the Who. 60 year old rock and rollers, who'd a thunk it?

Hey Ron,

Bolt head hits the tank?? Can you show me a picture of that?

Thanks, Rob
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Offline MCRider

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Re: Phaedrus II: CB750 "Super Standard" - Update 1/31/10- w new pics
« Reply #1029 on: February 08, 2010, 07:51:45 AM »
Nothin to see this week. Organized some more parts bins, made some longer bolts for the handlebar clamps with risers. Started wiring by ffeding switch gear wires thru handlebars, clipping wire loom to frame. Tested out some otor mount bolts.

Using Rob Voxondas doubled rear motor mount, the bolt head hits the oil tank. I think Rob is using a different oil tank. So I cut down a buttonhead for that use and shimmed out the tank. Problem solved.

Office work piling up, had to clear a logjam before Super Duper Bowl and real work tomorrow morning.

Still putting off the final polish on the front hub, just not drawn to the job. Maybe at half time. Tho don't want to miss the Who. 60 year old rock and rollers, who'd a thunk it?

Hey Ron,

Bolt head hits the tank?? Can you show me a picture of that?

Thanks, Rob
here 'tis Rob. No big deal. Side view for others to visualize as well, shows the outboard plate of the double motor mount. If one follows its line up you can sort of tell where the third bolt would be, behind the tank.

Front edge view, you can see the threads sticking out on the right, I'll trim them off, and the edge of the washer and buttion head bolt I'm using on the left directly behind the tank.. The tank actually has an indentation right there to help clear a standard bolt head. But the thickness of the outboard plate takes up most of the room.

The buttonhead would clear the tank by itself, but my sense of things requires that I put a flat washer there as well. Tightening down the tank bolt so it bottoms out on its shoulder, the tank hits the buttonhead. So I put a 6mm flat washer on the threaded part of the shoulder bolt, and alls well.

Another detail is that one must flatten the brake light switch mount. The folded over part which would normally notch into the frame, is interfered by the outboard plate. Not an issue on a racer, but I'll need the brake light switch. I figure I'll fold a little corner of it over to index against the edge of the outboard plate. That will hold it steady.
« Last Edit: February 08, 2010, 08:01:49 AM by MCRider »
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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1030 on: February 08, 2010, 07:58:46 AM »
Another problem I'm having is what to do with the chrome bulldog from a Mack truck I've been holding onto for 30+ years. Should I mount it on the headlight?


Or more inconspicuosly on the backrest?



Tee hee.
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Offline wannabridin

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1031 on: February 08, 2010, 08:09:15 AM »
on the tank, dead center!  haha, maybe on the front fender hanging off, then you can drill little holes in the eyes and run some red LED's so it looks angry!!

looking good so far!  MC, can you please elaborate why you went with Rob's motor mounts?  i remember reading about them awhile ago, but i could use a refresher.  thanks!
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Offline MCRider

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1032 on: February 08, 2010, 08:21:54 AM »
on the tank, dead center!  haha, maybe on the front fender hanging off, then you can drill little holes in the eyes and run some red LED's so it looks angry!!

looking good so far!  MC, can you please elaborate why you went with Rob's motor mounts?  i remember reading about them awhile ago, but i could use a refresher.  thanks!
Well remembering my theme here is to incorporate as many of the things I've learned and heard about as a racer and a sport tourer, whether or not I actually need them or can use them.

Years ago I had heard that a good trick to tightening up the frame, besides the gussets and welding on the frame, was to pay attention to the motormounts. Fro the factory the mount clearances are very sloppy. That has been confirmed here by posts from HondaMan and then I stumbled aross Robs motormounts. I can't use the front one as I'm using a tipover guard. But I had the guard welded into the front motormount so i've accomplished the same thing there. The rear mount comes with a tightfit bolt, so I'm tightening up that issue.


In case you missed it, the two lower engine mount bolts have been enlarged (had to drill out the pegs, frame and cases to accept it), and the engine cases were enlarged. The bolts were remade larger diameter, from stainless, to be a pushfit thru the frame and cases. The front mounts were also enlarged tho I don't have bolts for them yet. The right side front lugs on the frame were removed and welded over. I tapped the frame to a 10mm size, from the spindly 8mms.

It'll be a tight MF.
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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 II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1033 on: February 08, 2010, 08:25:02 AM »
And if I put the dog on my gas tank it'll interfere with my tank bag. Good thought though.
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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1034 on: February 08, 2010, 08:27:46 AM »
the who was pretty good although their voices were not what they use to be. i'll cut them a bit of slack given they've been belting out the tunes for most of my life.  ;D i don't care for medleys (sp?) either but it was a treat to see them play.

good game too.


what's the latest on your tins and paint?
Yeah, its a little sad to see, but we're all growing older. It just floors me how much music from that era is being used on current hit TV shows. Esp from the who. You could hear the audience singing along in the background.

My thought with the tank and covers is to get them over to the painter and have them primed. Then do nothing more till the bike is finished and the painter can see the whole thing.
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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 voxonda

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Re: Phaedrus II: CB750 "Super Standard" - Update 1/31/10- w new pics
« Reply #1035 on: February 08, 2010, 09:51:34 AM »
Nothin to see this week. Organized some more parts bins, made some longer bolts for the handlebar clamps with risers. Started wiring by ffeding switch gear wires thru handlebars, clipping wire loom to frame. Tested out some otor mount bolts.

Using Rob Voxondas doubled rear motor mount,..............................................................

Hey Ron,

Bolt head hits the tank?? Can you show me a picture of that?

Thanks, Rob
here 'tis Rob. No big deal. Side view for others to visualize as well, shows the outboard plate of the double motor mount. If one follows its line up you can sort of tell where the third bolt would ...............................................

OK Ron thanks, is clear for me now. Of course I developed the mounts with racing in mind. But you solved it OK! I'll run a test with countersunk bolts to clear the tank.

Cheers, Rob
Better sorry for failing then for the lack of trying.

Offline Ecosse

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1036 on: February 08, 2010, 10:43:22 AM »
My thought with the tank and covers is to get them over to the painter and have them primed. Then do nothing more till the bike is finished and the painter can see the whole thing.

i admire your forethought and restraint.  ;D

bulldog: i dunno about the headlight as it seems aesthetically awkward and maybe even stressful on the bucket material.

over the rear seat looks better but how is the misses gonna feel having his mussel in between her shoulder blades on those long rides?

this may be a bit involved but perhaps mocking up the gauges there is enough room for a simple but sturdy bracket so that the little dog can hover above the head light.
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Offline HavocTurbo

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1037 on: February 08, 2010, 10:46:46 AM »
I'm going to second the front fender idea.... or maybe under the lower triple clamp.

It would seem a shame to weld on that shiny new-ish fender though.  :'(
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Offline MCRider

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1038 on: February 08, 2010, 11:10:33 AM »
I'm going to second the front fender idea.... or maybe under the lower triple clamp.

It would seem a shame to weld on that shiny new-ish fender though.  :'(

I missed that earlier, yes of course, the fender!  The back feet are tapped, so I just run a bolt up from underneath!
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Offline wannabridin

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1039 on: February 08, 2010, 11:46:33 AM »
perfect!!!  glad i could help, haha!  joking, but it'll be cool! 
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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1040 on: February 08, 2010, 12:56:27 PM »
I hope you all relize I'm just kidding.   ;D
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Offline Frankenkit

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1041 on: February 08, 2010, 01:23:37 PM »
but we're so eager to help!!!
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Offline Ecosse

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1042 on: February 08, 2010, 02:53:56 PM »
I hope you all relize I'm just kidding.   ;D

i've learned not to question your vision; how dare you take advantage of my loyalty!






 :D :D :D


seriously, my impulse was *oh no* for about a 1/2 second. then i thought "i haven't read 'the art of motorcycle maintenance yet, so keep yer trap shut, or you'll crush his dream."  ;D
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Offline MCRider

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1043 on: February 08, 2010, 06:37:15 PM »
I hope you all relize I'm just kidding.   ;D

i've learned not to question your vision; how dare you take advantage of my loyalty!






 :D :D :D


seriously, my impulse was *oh no* for about a 1/2 second. then i thought "i haven't read 'the art of motorcycle maintenance yet, so keep yer trap shut, or you'll crush his dream."  ;D
Tee hee.  My dreams, my vision... yeah right.   :D
Ride Safe:
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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 II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1044 on: February 08, 2010, 07:16:27 PM »
Tee hee.  My dreams, my vision... yeah right.   :D

uh, strategic OCD?

 ???  ;D
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Offline HondaMan

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1045 on: February 10, 2010, 06:04:10 PM »
Just came by to drool some more, now that I have some time!
 :P :P :P :P

I may have to do this cryo thingie, MC. The C2/C5 gears on mine are worn enough to need new, getting the 1-2 jumpout once in a while (and 2-3 neutral: suspecting worn inner bearing letting the gears tilt too much after 136k+ miles).  :o

That dual motor mount from VOX is real trick!  8)
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

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Offline MCRider

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1046 on: February 10, 2010, 06:30:11 PM »
Just came by to drool some more, now that I have some time!
 :P :P :P :P

I may have to do this cryo thingie, MC. The C2/C5 gears on mine are worn enough to need new, getting the 1-2 jumpout once in a while (and 2-3 neutral: suspecting worn inner bearing letting the gears tilt too much after 136k+ miles).  :o

That dual motor mount from VOX is real trick!  8)
Glad i could provide a tasteful distraction.

Coincidentally, I had a friend in today who has worked for several of the racing shops in Indy/Brownsburg area. He most recently was with Gil de Ferran Motor Sports. They had to close shop for lack of sponsors, hopefully temporary, but my friend was picked up right away by Andretti Green. he's a very fine machinist and pit crew member. Their 100,000+sf shop is nearly a stones throw from here.

He did a stint with AG a few years ago. Said I could use their magnaflux cabs and glass bead cabs. Maybe get some fab work done when he's slow. Long way to get to this.

I asked him if they do Cryo. He said no, they throw parts away so fast it doesn't matter to them. But they do use REM Polishing. Makes their gears super slick. So I Googled REM Polishing and found this.

http://www.procryo.com/RemGears.html

A Cryo/REM polishing outfit that does both. They say near the end that "Gears receiving our exclusive CRYO-REM (TM)  process are BULLET PROOF!  They will out perform and outlast your competitors gears at every turn.  "  So both processes are desirable.

Is it true that some of our most vulnerable CB750 gears are no longer available from Honda?
« Last Edit: February 10, 2010, 06:34:02 PM by MCRider »
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1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1047 on: February 10, 2010, 06:32:03 PM »
To Havoc Turbo:
You mentioned your Cryo contact said they could turn around in a day?

From what I've read and heard, the proper process involves at least a few cold cycles, finishing with a bake in an oven. Minimum time 72 hours. Might want to look it up and ask them some questions. I know Cryo of Indiana needs 3 days.

It may be that a shorter process yields acceptable results. I personally don't know. I'm just saying.

http://www.procryo.com/cryo1.html
« Last Edit: February 10, 2010, 06:38:25 PM by MCRider »
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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 HavocTurbo

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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1048 on: February 12, 2010, 07:33:29 AM »
I'm sorry.... I didn't clarify. I was originally talking to him about plastics. The XS850 primary chain is exposed from the crank behind the right side engine cover. I am going to make a "tensioner" to keep the chain from slapping the bottom of the cases when downshifting.

So we were talking about cryo-ing some delrin or maybe industrial mix polyester.

Yes.... anything metal would be 3-5 days. Sorry for the mix-up.
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Re: Phaedrus II: CB750 "Super Standard" - Update 2/07/10- w/o new pics
« Reply #1049 on: February 12, 2010, 10:53:53 AM »
I hope you all relize I'm just kidding.   ;D

Thank God!!!  :D