Author Topic: 72 CB500 Restomod - *Update* Sold!  (Read 46087 times)

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Offline Scramps

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Re: 71 CB500 Restomod
« Reply #200 on: June 29, 2018, 06:01:48 PM »
That’s maybe my favorite YT channel. The sped-up videos are good for however it is that my brain functions. Love all the little fab parts and brackets he makes.

High five!

I’m currently watching the whole playlist on a loop. I’m excited to see how his little Yamaha is going to turn out. He’s getting a lot more in depth on this one than usual


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Offline Scramps

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Re: 71 CB500 Restomod
« Reply #201 on: July 01, 2018, 08:03:37 PM »
Okay!

Possible solution to the clutch disengagement issue. Two parts.

One: old wet clutch + watery crankcase * a couple decades or so = stuck friction plates. Removed them tonight to discover that they are indeed rusty and sticky, so I’m gonna clean ‘em tomorrow and see what I end up with.

Two: I don’t think that 100% of the hardware for the springs on the clutch basket is present. I will investigate this further during reassembly.

I also confirmed the movement of the actuator rod is as it should be, and that it should be able to do the job provided that everything else shakes out for the better tomorrow.

Offline Scramps

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Re: 71 CB500 Restomod
« Reply #202 on: July 08, 2018, 06:26:34 PM »
Backing up and redoing some stuff. Carb adjustments to suit the stock airbox, some electrical component relocating, and some fabrication. I really wanted to get this bike on the road as quickly as possible, but that's not going to happen.

Back on the clutch thing, None of the stuff I've done so far has been very helpful. My friction plates are 3.4-3.5mm, and the only spec I could find indicates that 3mm is the wear limit, is that legit?

I'm probably going to need new springs?

Anyway, have fun

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Re: 71 CB500 Restomod
« Reply #203 on: July 11, 2018, 07:37:25 PM »
I purchased an 8mm nickel-plated steel rod, cut it to the only length dimension I could find (257mm), and voila:


It's just a touch too long, I left some excess for rounding off the end.

I'm glad to finally have this damned problem behind me, or at least nearly.
« Last Edit: December 01, 2018, 11:15:00 AM by Scramps »

Offline Scramps

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Re: 71 CB500 Restomod
« Reply #204 on: July 12, 2018, 05:59:40 AM »


So for future reference, the push rod does need to be 257mm long, 8mm in diameter, rounded on one end, with a 10mm long section of the rounded end lathed down to 7.4mm diameter, to allow it to seat in the lifter. The other end remains flat, with a small indentation for the steel ball in the lifter arm.

There has been some discussion about hardening the tips to prevent premature wear and tear, but I’m not 100% sure that the application is strenuous enough to warrant that. Thoughts?

Offline Darren Jakal

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Re: 71 CB500 Restomod
« Reply #205 on: July 12, 2018, 06:20:36 AM »
Yea the moment it finally comes together.  You can hear it in your voice.

I enjoyed the video!

cheers, dj


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Re: 71 CB500 Restomod
« Reply #206 on: July 12, 2018, 03:41:12 PM »
Thanks DJ, I was very excited.



Offline Gurp

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Re: 71 CB500 Restomod
« Reply #207 on: July 14, 2018, 03:12:15 PM »
Scamps. I was going nuts with my clutch. Gordered that bracket from you. Have a new cable and read throigh here since im building a 73 cb500 and measured my clutch rod and its 254mm.  I havent got the clutch side apart yet to see if the plates are stuck or not though lol. Is there a bracket on the 500 or does it just go in the hole on that sides cover?
This is my first 500-4. Had a few 550s but dont know what all is different.
slow Progress 74 cb550.

Poor boy chop 73 CB500 chop

Future project 77 Cb750 Amen Savior

Offline Scramps

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Re: 71 CB500 Restomod
« Reply #208 on: July 14, 2018, 08:17:40 PM »
Clutch cable feeds down through the top of the left side cover.
The 500s also have a shorter clutch cable than the 550s.
It was a carryover design from some older, smaller machines that they ultimately changed later on.

Offline Scramps

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Re: 71 CB500 Restomod
« Reply #209 on: July 14, 2018, 08:46:58 PM »
Also there’s some really good documentation on this site like original shop and parts manuals. The exploded diagrams have helped me immensely on this project.
This is my first 500, but it’s also my first project like this that I’ve ever dug into.
I’ve learned a lot over the past 7 months or so, and this dude is just about ready to test drive.

Back to the matter at hand, though; I dropped off my tank with a local reputable body shop a couple weeks ago. I have a pretty good rapport with the owner, we give him a lot of business at my day job. I asked if they could smooth out the dents and prime it for me, which they did. I went back to check on the progress yesterday, not expecting it to be ready, but it was done. No charge, which was very kind. I wasn’t able to bring it home though, since I was on my Suzuki.

In preparation for the newly refinished tank, I took some time this evening to reassemble everything. Repainted the engine side covers that had been removed, reinstalled the clutch plates after an overnight oil soak, mounted up the chain guard, fixed some electrical connections, adjusted the clutch, moved some wiring around, and basically did a bunch of things. You get the idea.

I wanted to ask about hardware for the gas cap. The original pins are a little pricey, and I don’t think I have an appropriate tool to install it. I vaguely remember reading about tiny bolts that could be used? Like M3s, maybe? I’m probably gonna go that route.

I replaced my handlebar switches with the ones I was advised not to buy, they’re 1000x nicer than the ones that I had. Very small, very utilitarian.

I finally found a store that has the front turn signal stems in stock, ordered some of those and some dust boots for the front forks.

I’m glad to have had an opportunity to tear into this again, it’s therapeutic.

Offline Scramps

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Re: 71 CB500 Restomod
« Reply #210 on: July 15, 2018, 11:09:32 AM »
I drew myself a new profile avatar

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Offline RAFster122s

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Re: 71 CB500 Restomod
« Reply #211 on: July 15, 2018, 12:03:04 PM »
Nice job...you an artist or merely talented with the pen?
David- back in the desert SW!

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Re: 71 CB500 Restomod
« Reply #212 on: July 15, 2018, 12:07:08 PM »
HondaMan has replacement screws available along with lots of other cool kits for plug amnd play upgrades like the electronic ignition and his switch saver and control saver relay kits and fuse box kit.

David
David- back in the desert SW!

Offline Scramps

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Re: 71 CB500 Restomod
« Reply #213 on: July 15, 2018, 12:54:34 PM »
Nice job...you an artist or merely talented with the pen?


I’d like to consider myself kind of an artist, but it’s just a hobby. Thank you, either way!

As for these Hondaman pieces and parts, does he have a website for that stuff? Or do I just need to seek him out on the forums here?

Offline Gurp

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Re: 71 CB500 Restomod
« Reply #214 on: July 15, 2018, 07:34:26 PM »
Love the avatar!
slow Progress 74 cb550.

Poor boy chop 73 CB500 chop

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Offline RAFster122s

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Re: 71 CB500 Restomod
« Reply #215 on: July 15, 2018, 10:16:41 PM »
Mark has a website sohc4shop.com, our HondaMan denizon of the SOHC4 forums and a great guy.  Mark Paris.  Mark is a former Honda Master Mechanic, now pursuing engineering line of work ...but he builds motors and repairs and modifies them for many list members.  Unfortunately, Denver does not have much of a classic bike scene or very many sohc4 bikes from what Mark tells me.

Contact Mark and tell him why you want and he can tell you if he has it on hand or will need to build a new batch...if something is out of stock.

A tool you should plan on buying if you stay in classic Hondas is a ratcheting electrical crimper, they are the best method of wire termination, far superior to soldering.

David
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Re: 71 CB500 Restomod
« Reply #216 on: July 15, 2018, 10:23:29 PM »
You have artistic talent Scramps.  Best to not turn something like that into a business as it sucks much of the enjoyment from it.  Your drawing show good balance, symmetry, proportions and not overdone on detail with good use of shading.  Is it computer, pen, pencil, or other media?

I took art classes in school from Jr High through High School...I enjoyed it very much.  I like pencil, colored pencil, and watercolors... And some mixed media with watercolors.

David
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Offline Scramps

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Re: 71 CB500 Restomod
« Reply #217 on: July 16, 2018, 05:20:09 AM »
I can’t take credit for the symmetry, the app I used “Painter” on my galaxy tab has a mirroring function. I appreciate the compliments though!
I’ve sketched and doodled and drawn as long as I can remember.
This particular one was from memory. I’ve spent so much time staring at my bike, I know it like the back of my hand.
I took a few art classes in high school as well, it was a good experience.

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Re: 71 CB500 Restomod
« Reply #218 on: July 19, 2018, 07:32:00 PM »
I got some parts and did some things



Also I never showed you guys my tank after I got it back, it looks so nice



At any rate, I’m nearly done with the lighting (front brake switch doesn’t seem to want to work) Those stalks for the front turn signals were kind of elusive there for a while.





If I’m not careful, I might end up with a real motorcycle one of these days!

Remaining items for getting it ready to test drive:
- new battery
- fix leaky carburetors
- bump stop for center stand
- finish the tank
- fuel filters

I think that’s basically it. I’m not excited about pulling the carbs for the 40th time, but c’est la vie.

Offline calj737

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Re: 71 CB500 Restomod
« Reply #219 on: July 20, 2018, 05:09:54 AM »
Your throttle cables are not routed properly. Look at the parts diagram or manual to correct that. As you have them, they may well bind up.
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

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Re: 71 CB500 Restomod
« Reply #220 on: July 20, 2018, 06:04:27 AM »
10-4. I can fix them when I put the carbs back on

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Re: 71 CB500 Restomod
« Reply #221 on: July 21, 2018, 04:32:00 PM »
So I scratched up my fork tubes a little bit during reassembly. It’s not enough to freak out about, but it got me thinking; is it possible to have fork tubes resurfaced and rechromed in the same manner that hydraulic rods are restored?

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Re: 71 CB500 Restomod
« Reply #222 on: July 23, 2018, 07:03:07 PM »
Two of my air screw springs are missing :/

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Re: 71 CB500 Restomod
« Reply #223 on: July 28, 2018, 09:33:49 PM »
Put the carbs back on tonight, filled them with a little gas and fired the bike up for the first time in a good while. Nice to hear it run, even if it is with crappy rusted out exhaust

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Re: 71 CB500 Restomod
« Reply #224 on: July 30, 2018, 07:34:08 PM »


Probably not valid, since it didn’t want to idle. Anyway I figure I probably should quit farting around with it until I get the whole intake and exhaust system sorted out.