Author Topic: Marissa's 1972 CB500  (Read 92827 times)

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Offline PeWe

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Re: Marissa's 1972 CB500
« Reply #75 on: August 19, 2017, 02:00:20 PM »
This forum have given me a lot of good inspiration when restoring my bike. All very interesting threads with photos and all professionals knowing everything and more about these old CB's. My project went to another restore and a third later on, same bike within 4 years. Plenty of new parts and more power from the engine. I gave up the economical sense since I see no other bike I want. A nice semi controlled madness. I think it's called passion! ;D It could have been a woman I have lived with for long time too, now a bike that has never turned me down ::)

This thread make me eager to start my K2 project. The cases need new paint looking great again! The good powder painted frame to be welded for a frame kit since someone have cut it.
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 SOHC4 Cafe Racer Fan

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Re: Marissa's 1972 CB500
« Reply #76 on: August 19, 2017, 04:42:08 PM »
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 Marissa

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Re: Marissa's 1972 CB500
« Reply #77 on: September 05, 2017, 01:43:20 PM »
Finally got the top end back from the shop, no issues were found in it! So I've been reassembling the engine piece by piece now that I'm back in school. I was able to use electrolysis to remove paint from the cylinder jug; it worked okay. I still have yet to find anything to strip the finish off the engine well- I will probably invest in a media blasting tank at some point in time and use that. I painted everything with VHT flat aluminum so far and it's looking pretty good, I can't wait to install everything else on the engine so it'll have more contrast. Right now I'm waiting on sealing rubbers and piston rings before I can go further.

One issue I did find however is the clutch cover and gasket... Wish I took a picture of it but regardless, I'm hoping someone else encountered this issue and can explain what is wrong. Inside the clutch cover, the kickstart mechanism is spring loaded, and the end of the spring (on the left) sits behind the gasket between the mating surface of the cover, the gasket, and the rest of the transmission. I'm assuming this has to be here, but with the new gasket and allen bolts I'm using, it's apparent that the cover can't sit flush, and will leak out the bottom right beneath where the dip stick sits. I know this could not seat fully flush beforehand because there is no opening for the end of the spring to sit even with the rest of the surface, and I replaced the Allen bolts with the original bolts to see if it made a difference but it still leaks. Not sure what else to try, anyone have any advice?
« Last Edit: February 16, 2019, 08:28:08 PM by Marissa »
1984 Nissan 300zx - sold
2016 Ford Fiesta ST - daily
1972 Honda CB500 - infinite work in progress

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Offline SOHC4 Cafe Racer Fan

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Re: Marissa's 1972 CB500
« Reply #78 on: September 05, 2017, 02:10:44 PM »
One very effective method of cleaning engine parts is vapor blasting.  Check out www.restocycle.com  It is run by Nils Menten here on the forum (who is also an Ikon suspension dealer).  Vapor blasting leaves a like new and peened finish to the aluminum.  You can paint it, powdercoat it or leave it bare.
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 PeWe

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Re: Marissa's 1972 CB500
« Reply #79 on: September 05, 2017, 02:14:47 PM »
One very effective method of cleaning engine parts is vapor blasting.  Check out www.restocycle.com  It is run by Nils Menten here on the forum (who is also an Ikon suspension dealer).  Vapor blasting leaves a like new and peened finish to the aluminum.  You can paint it, powdercoat it or leave it bare.
Those parts on that site look like art. For a shelf beside the TV in the living room ;)
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 SOHC4 Cafe Racer Fan

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Re: Marissa's 1972 CB500
« Reply #80 on: September 05, 2017, 04:00:50 PM »
One very effective method of cleaning engine parts is vapor blasting.  Check out www.restocycle.com  It is run by Nils Menten here on the forum (who is also an Ikon suspension dealer).  Vapor blasting leaves a like new and peened finish to the aluminum.  You can paint it, powdercoat it or leave it bare.
Those parts on that site look like art. For a shelf beside the TV in the living room ;)

I suppose you could put a piece of glass on top and do that!  ;)
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 Stev-o

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Re: Marissa's 1972 CB500
« Reply #81 on: September 05, 2017, 04:35:15 PM »
One very effective method of cleaning engine parts is vapor blasting.  Check out www.restocycle.com  It is run by Nils Menten here on the forum (who is also an Ikon suspension dealer).  Vapor blasting leaves a like new and peened finish to the aluminum.  You can paint it, powdercoat it or leave it bare.
Those parts on that site look like art. For a shelf beside the TV in the living room ;)

I prefer them on my bike and on the road!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline calj737

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Re: Marissa's 1972 CB500
« Reply #82 on: September 05, 2017, 04:55:20 PM »
I'm not sure I understood your question and references with the clutch cover. Can you use this image to provide a tad more clarity?

https://www.cmsnl.com/honda-cb500k1-four-1972-usa_model460/partslist/E++08.html#results
'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

Offline PeWe

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Re: Marissa's 1972 CB500
« Reply #83 on: September 06, 2017, 03:17:13 AM »
Maybe late now...about engine paint that was up on previous page.

Do not use the paint for really hot surfaces like exhaust pipes, heat resistant paint 650°C.
This will NEVER harden when applied on cases, cylinder and head. I did that mistake for many years ago when people sprayed the cylinders and heads black. My cylinder softened extra when warm and looked always dirty.
The period of glass beaded cylinders and heads saved the look of my bike.

I used, (and did again yesterday) engine paint for 150°C (300°F). I used it on my Honda cylinder and head too.
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 Marissa

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Re: Marissa's 1972 CB500
« Reply #84 on: September 21, 2017, 02:05:38 PM »
A little progress. Right now I'm having trouble getting the cam chain on the sprocket. I've tried it as many ways possible:

tried getting it on the sprocket first, then cam through,
tried putting the sprocket 1 inch to the left of where it sits, letting it rest and trying to put the chain on that way,
tried putting it through the cam then onto the sprocket, etc.

Before you ask, no the chain isn't caught. I've spun it over multiple times to make sure I wasn't crazy. Am I just not being aggressive enough with it? I was able to get the assembly all together without the chain tensioner installed, but obviously there's no way to install it after. Everything seems to be installed as the cylmer manual says to. The cam guide is on perfectly.
The more I dig, the more issues I find :) I don't even know if I like this bike anymore, haha.

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr check out my rigged tool to remove a broken cylinder bolt!

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr presents in my oil pan :)
1984 Nissan 300zx - sold
2016 Ford Fiesta ST - daily
1972 Honda CB500 - infinite work in progress

Instagram- marissasimos

Offline calj737

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Re: Marissa's 1972 CB500
« Reply #85 on: September 21, 2017, 02:33:07 PM »
Slide the cam under the chain, tensioner fully slacked. Slide the sprocket under the chain. Lift the sprocket straight up aligning the sprocket 1 hole at a time, rotating the crank and cam to align the second hole.

If you attempt to lift the chain onto the sprocket while the sprocket is attached, there’s not enough room because of the kink you put in the chain. That minimal angle makes the chain too short. Everything has to be very straight, and upwards only.
'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

Offline goldarrow

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Re: Marissa's 1972 CB500
« Reply #86 on: September 21, 2017, 03:29:11 PM »
Triple check and be sure that the chain tensioner is seated properly where it belongs, before torque down the head nuts
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

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Offline goldarrow

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Re: Marissa's 1972 CB500
« Reply #87 on: September 21, 2017, 03:42:50 PM »


Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr

Chain tensioner in These pics don't look right
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline Scott S

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Re: Marissa's 1972 CB500
« Reply #88 on: September 21, 2017, 04:00:03 PM »
 It's not. The tensioner isn't seated in the "cup" in the case.
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline DaveBarbier

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Re: Marissa's 1972 CB500
« Reply #89 on: September 21, 2017, 06:15:40 PM »
It's not. The tensioner isn't seated in the "cup" in the case.

+1 Put the tensioner in it's pocket. You'll probably have to lift the head and cylinders a little.

But even with the tensioner in it's pocket it'll probably still be difficult to get the chain and sprocket on the cam.

I put the chain on the sprocket, slide the cam through, then lift the sprocket with chain on the cam. Before this though, I loosen the tensioner's locknut, reach down with a large flathead screw driver and push the tensioner "bow" away from the chain and then tighten the lock nut. That will give you more chain slack.

Progress! Doing good so far!

Offline Lostboy Steve

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Re: Marissa's 1972 CB500
« Reply #90 on: September 21, 2017, 06:35:42 PM »
It's not. The tensioner isn't seated in the "cup" in the case.

+1 Put the tensioner in it's pocket. You'll probably have to lift the head and cylinders a little.

But even with the tensioner in it's pocket it'll probably still be difficult to get the chain and sprocket on the cam.

I put the chain on the sprocket, slide the cam through, then lift the sprocket with chain on the cam. Before this though, I loosen the tensioner's locknut, reach down with a large flathead screw driver and push the tensioner "bow" away from the chain and then tighten the lock nut. That will give you more chain slack.

Progress! Doing good so far!

+2 and I usually install mine the same way.


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Offline Scott S

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Re: Marissa's 1972 CB500
« Reply #91 on: September 22, 2017, 04:22:52 AM »
 In the picture where you say "Gee, now I know why the cable tensioner is busted", I'm not sure I'm following you....
 That looks like the "protector", for lack of a better word, for the drive chain. It looks like someone rode with a really loose chain at some point.
 I'm not sure what tensioner you're referring to.
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline HondaMan

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Re: Marissa's 1972 CB500
« Reply #92 on: September 24, 2017, 07:22:53 PM »
Yep, the cam chain tensioner is not in its pocket. That will place the tensioner assembly too close to the sprocket, using up all the slack in the chain. Then it cannot be assembled (and good thing!).
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

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Offline andy750

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Re: Marissa's 1972 CB500
« Reply #93 on: September 25, 2017, 03:14:35 AM »
Subscribed. Very interesting build and lots of good info. Good luck Marissa.
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

Offline rb550four

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Re: Marissa's 1972 CB500
« Reply #94 on: September 25, 2017, 06:38:07 PM »
 I'd like to be the 4th guy to say that the cam chain tensioner isn't sitting in it's perch, but I'm looking at the primary chain, looks really slack in that picture to me. What do you guys see?   How is it in person Marissa? It would be a shame to go through all this work and miss the opportunity to replace a worn primary chain.
A few Honda 500's, a few Honda 550's, a few Honda 650's, '72 cb 450, a couple 500/550/650 hybrids, and 2001 750. 
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http://forums.sohc4.net/index.php/topic,137317.msg1550907.html#msg1550907

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Re: Marissa's 1972 CB500
« Reply #95 on: September 25, 2017, 07:33:01 PM »

Untitled by Marissa Simos, on Flickr

Untitled by Marissa Simos, on Flickr presents in my oil pan :)

Yum! Crankcase jelly!
It's good for the skin, though. :)
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

Link to website: www.SOHC4shop.com

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Re: Marissa's 1972 CB500
« Reply #96 on: September 25, 2017, 09:38:18 PM »
Crankcase gravy! Yumm.
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 Marissa

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Re: Marissa's 1972 CB500
« Reply #97 on: October 15, 2017, 06:42:15 PM »
A little update!

Yes, I know the tensioner was not in the perch correctly. The main reason I took that picture was because of that damage on the side of the case that looks like at some point the primary chain was hitting that if I had to guess. That's definitely concerning right?

I'd like to be the 4th guy to say that the cam chain tensioner isn't sitting in it's perch, but I'm looking at the primary chain, looks really slack in that picture to me. What do you guys see?   How is it in person Marissa? It would be a shame to go through all this work and miss the opportunity to replace a worn primary chain.

That being said, it did not feel that "slacky" but I'm not sure what amount of tension is supposed to be on it. I think for safe measure I will take the oil pan back off to double check.

I was able to install the cam chain sprocket onto the cam as well after I added an extra set of hands. I believe we first put the chain on the sprocket while the sprocket was resting on the side of the cam, then slowly pried it up onto the cam shaft. We used a lot of picks and small Philips screwdrivers to finesse the chain onto the sprocket (this worked best for us and I'm hoping others who have difficulty initially will find this thread and try it).

We started on the easier side which has the chain guide, not the tensioner. We would pry the chain over onto the sprocket one link at a time, and once we would get it where it needed to be, piece by piece we put a screwdriver at an angle between the sprocket and chain to keep it from trying to sway to the other side. Once we got the next link over the sprocket and parallel, we would put another small screwdriver in the same position as previously, and take the first screwdriver out. So we fed the chain on literally one link at a time, and once we got to the tensioner side, we placed a bigger flat head in laterally on the side of the chain to force it (if you were sitting on the bike, the flat head was placed on the right side of the tensioner, partially on it and also moving the chain at the same time. Once we got it to move the chain as close to the sprocket as it would go, we took a dental pick and moved the chain one link at a time once more. It popped right on once we did that to two links or so.

I have no idea if we made this overly difficult or if people had a much easier time doing this, but regardless we have no issues now with the chain, and it is properly timed. We used blue threadlock as well on the cam bolts as extra insurance that they won't back out. I think I will also use that on the oil pan bolts as well when I'm checking the slack on the primary chain.

Dad lending a hand, he taught me how to work on cars, but he has never worked on a bike before.

Currently, I am waiting on some oil, Honda Moly paste, and cables in the mail. I was told by someone on SOHC4's Facebook page to use the Honda Moly oil on the cam to ensure I don't wear down the seat of the cam. (I'm sure many just use oil liberally, but I want to ensure I'm doing things as best as possible where I can.)

I mocked up the valve cover and a couple of things just to see how it will look. If it runs well and I can get a few runs in this season, I will certainly be doing an extensive cleaning, wax and polish. I clean the bike whenever I'm making progress but there's usually a week or so where I'm waiting on parts/too busy.



Think it looks fairly nice. I purchased the stainless steel bolts from alloyboltz on eBay (Dime City Cycles also sells them) and while most of the components had the perfectly sized bolts, my side cover bolts were quite wrong and I had to switch/piece meal them together because the cb500 kit is supposed to also fit the cb550, and I'm guessing they have slightly different side covers in order to fit the CB550 moreso. Regardless, they are fine if you want a little upgrade.



Found a NOS cylinder stud to replace my broken one as well.
1984 Nissan 300zx - sold
2016 Ford Fiesta ST - daily
1972 Honda CB500 - infinite work in progress

Instagram- marissasimos

Offline Marissa

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Re: Marissa's 1972 CB500
« Reply #98 on: October 15, 2017, 06:56:50 PM »
Scott, to answer your question on the clutch cable tensioner thing (have no idea what it could be called) The part that engages the end of the clutch cable, which connects to the spring in the bottom of the side cover housing, it houses a steel ball and rotates when the cable is being engaged. If you look closely in the photo, a big chunk of it is missing from impact of the drive chain either busting or getting loose. I'm going to assume it will need replacing once the bike is road worthy.
1984 Nissan 300zx - sold
2016 Ford Fiesta ST - daily
1972 Honda CB500 - infinite work in progress

Instagram- marissasimos

Offline DaveBarbier

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Re: Marissa's 1972 CB500
« Reply #99 on: October 16, 2017, 04:35:04 AM »
Looking good Marissa. I use assembly lube which I doubt contains any molybdenum. Some use regular oil, but I believe my 650 manual specifically calls for moly paste on the cam.

As for the picture of the cam, I'm sure it's just of you guys messing with the chain, but the notch is 90° off from where it's supposed to be. Assuming you cylinders 1/4 are at TDC. Just making sure you got that installed correctly. Notch at 3 o'clock, cylinders 1/4 at TDC. You're thorough so I'm sure it's done right.

Lastly, I wouldn't bother using loctite on the oil pan bolts. But if you're replacing those screws with stainless Allen heads, use antiseize.


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