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Author Topic: CB650 Custom Rust Bucket  (Read 11424 times)

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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #25 on: September 20, 2018, 02:58:43 PM »
Little update here. Lit that sht up.






And then






Oops
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Offline scunny

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Re: CB650 Custom Rust Bucket
« Reply #26 on: September 20, 2018, 09:52:13 PM »
I didn't realise you had to incinerate your bike to remove the rotor bolt.
Good tip, thanks, I think.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #27 on: September 21, 2018, 05:46:33 AM »
Quote from: scunny on September 20, 2018, 09:52:13 PM
I didn't realise you had to incinerate your bike to remove the rotor bolt.
Good tip, thanks, I think.

Yeah, next up I’ll show y’all how submerging your bike in flood waters makes your brake caliper easier to remove.
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Online calj737

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Re: CB650 Custom Rust Bucket
« Reply #28 on: September 21, 2018, 07:58:14 AM »
Quote from: CarbonK on September 21, 2018, 05:46:33 AM
Yeah, next up I’ll show y’all how submerging your bike in flood waters makes your brake caliper easier to remove.
Saltwater works really well for that  ;D
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Online CBJoe

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Re: CB650 Custom Rust Bucket
« Reply #29 on: September 21, 2018, 04:23:53 PM »
woah....Maybe time to flip the cases over and undo the rods from the crank and knock them out from the bottom?
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Offline RAFster122s

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Re: CB650 Custom Rust Bucket
« Reply #30 on: September 22, 2018, 05:15:44 AM »
That bolt is a Std  "righty tighty, lefty loosely" not left hand threaded. Is there damage caused by trying to turn the motor over the other way (opposite rotation)?  Realizing of course you might need an air impact to free that bolt next time...
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Offline RAFster122s

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Re: CB650 Custom Rust Bucket
« Reply #31 on: September 22, 2018, 05:21:02 AM »
Quote from: CarbonK on August 30, 2018, 02:19:25 PM
Sucked up all the ATF/Mystery Oil mix and found rust and dirt, not sure what I expected. Heated the cyilinders up with a MAP torch and used a wooden dowel and hammer to bang on them but they didn’t budge. Time to get some kerosene.


Kerosene is $4/ gallon here and gasoline is $2.58/gallon, any reason not to use gasoline for your BBQ? Maybe other than the fact that gas vapor is more explosive than TNT and probably more dangerous to have you BBQ with...Kerosene burn hotter or something I do not know?
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Offline RAFster122s

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Re: CB650 Custom Rust Bucket
« Reply #32 on: September 22, 2018, 05:27:55 AM »
This a Katrina bike? Or another lovely storm to blame?
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Offline DaveBarbier

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Re: CB650 Custom Rust Bucket
« Reply #33 on: October 01, 2018, 05:01:28 AM »
This seems like a fun thread, haha. Might need to just rock the bike in gear after a lot of heating. Assuming the rear wheel and chain are still on. I bet inside the motor is clean though. My 650 was in rough shape too, good thing I only needed the motor. I did break a few case and head bolts getting it apart.

Regarding the carbs, the 750 carbs won’t work. Thats only for the earlier 650 which has different head manifold spacing. I wouldn’t be surprised if you could find a good rebuildable set of the VB’s on eBay.

What’s the ultimate goal for this bike? Stock? Cafe? Weekend track bike? If the latter you might want to consider CR26’s instead of messing with the cv carbs.

If you want, have a look at the build thread link in my signature. I’ve got a 650/674cc motor in a 550 frame with other fun upgrades. I really like the SOHC4 650 motor.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #34 on: October 08, 2018, 06:47:11 PM »
Quote from: RAF122S on September 22, 2018, 05:27:55 AM
This a Katrina bike? Or another lovely storm to blame?

This bike had a visit from Sandy in 2012.

Quote from: DaveBarbier on October 01, 2018, 05:01:28 AM
What’s the ultimate goal for this bike? Stock? Cafe? Weekend track bike? If the latter you might want to consider CR26’s instead of messing with the cv carbs.

If you want, have a look at the build thread link in my signature. I’ve got a 650/674cc motor in a 550 frame with other fun upgrades. I really like the SOHC4 650 motor.

If I can get the engine unstuck during the winter I was planning on rebuilding and and swapping it into my 550. I’ll definitly check out your thread.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #35 on: October 17, 2018, 12:34:55 PM »
After wrestling with the thing for a few days I was able to get pistons 1 and 4 free. 2 and 3 are still stuck in the bores. I’m getting close boys.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #36 on: November 07, 2018, 05:05:13 PM »
Took a page out of DaveBarbier’s book and tapped the head bolt holes to screw down some bolts over metal rod to get the last two pistons out of the jugs. Worked well, glad I went through that thread.

Progress has been slow. Just been cleaning engine parts, sanding corrosion, and painting.





Went with an aluminum color. Debating wether to hit it with some high temp clear for a glossier finish.
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Offline DaveBarbier

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Re: CB650 Custom Rust Bucket
« Reply #37 on: November 08, 2018, 04:39:43 AM »
Glad that helped someone out, buddy.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #38 on: December 02, 2018, 10:00:13 AM »
Had a bit of time to check out the head, all exhaust valves were cruddy and pitted but some worse then others. 2 of the 4 were bent. Gonna have to get some new ones and cut the seats. Haven’t checked the intake valves yet.



Decided to switch it up and give some attention to the rusted out exhaust. Definitely no saving this chrome so I’m trying to remove as much rust as I can with a flap disc.



Left one is almost all cleaned up. Plan right now is to spray em black to prevent anymore rust. After I get the engine back together and into a frame I’ll probably end up revisiting those.

Also been searching eBay and the forums every now and then for a set of 81 CB650c carbs but haven’t had much luck.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #39 on: December 08, 2018, 12:27:58 PM »

More derusting.

I think I’m gonna keep the frame bare metal for that mad max look. I’ll be diligent with applying Wd-40 on it.
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Offline DaveBarbier

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Re: CB650 Custom Rust Bucket
« Reply #40 on: December 08, 2018, 03:35:30 PM »
You might want to clear the frame with a satin finish clear coat. Oiling the entire frame and getting it totally covered will be a pain with the wiring, tank, seat, etc installed.
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Offline SOHC4 Cafe Racer Fan

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Re: CB650 Custom Rust Bucket
« Reply #41 on: December 10, 2018, 10:07:13 AM »
Quote from: DaveBarbier on December 08, 2018, 03:35:30 PM
You might want to clear the frame with a satin finish clear coat. Oiling the entire frame and getting it totally covered will be a pain with the wiring, tank, seat, etc installed.

Oiling the frame will not only be a pain, it will be darn near impossible to cover every mm.  I agree with Dave's recommendation to satin clear it.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #42 on: December 17, 2018, 04:49:14 PM »
C’mon guys, I was joking. Just poking fun at a former sohc4 member.



Painted the frame with rustoleum appliance epoxy. It’s been holding up well on my other frame for a couple of years now so I decided to use it on this one also.

Lost a couple of bearings when taking the triple tree out. Hopefully they’ll turn up, if not I guess I’ll pick up some tapered bearings.
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Online calj737

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Re: CB650 Custom Rust Bucket
« Reply #43 on: December 17, 2018, 04:50:15 PM »
 ;D I caught the reference  ;) Ditch the balls, go tapered.
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"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 SOHC4 Cafe Racer Fan

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Re: CB650 Custom Rust Bucket
« Reply #44 on: December 17, 2018, 08:49:16 PM »
Lose the rest of those 40-year-old ball bearings and get some tapered roller bearings.
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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 DaveBarbier

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Re: CB650 Custom Rust Bucket
« Reply #45 on: December 18, 2018, 02:12:34 AM »
Quote from: calj737 on December 17, 2018, 04:50:15 PM
;D I caught the reference  ;) Ditch the balls, go tapered.

I totally missed it, haha.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #46 on: December 19, 2018, 03:41:18 PM »


Got that makeshift paint booth going.



Little guy was upset because he got evicted.



Exhaust came out pretty good. The previous owner was surprised when I wanted to take the rusted out pipes with me. One man’s trash is another man’s treasure.

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Offline Gurp

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Re: CB650 Custom Rust Bucket
« Reply #47 on: December 31, 2018, 07:44:21 AM »
Appliance paint?
I like the white thought about using it for a tank and fender. Good to know it holds up well.
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Offline CarbonK

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Re: CB650 Custom Rust Bucket
« Reply #48 on: January 01, 2019, 02:30:28 PM »
Quote from: Gurp on December 31, 2018, 07:44:21 AM
Appliance paint?
I like the white thought about using it for a tank and fender. Good to know it holds up well.

Might want to use a fuel resistant clear on the tank. I’ve noticed a bit of fading on a tank which I spilled gas on a few times but then again I’m not really careful when fueling up.




Painted and put new brakes on the rear yesterday before the rain started coming down.



Removing some paint on wheel edges to break up the black.



« Last Edit: January 03, 2019, 01:53:35 PM by CarbonK »
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Offline Gurp

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Re: CB650 Custom Rust Bucket
« Reply #49 on: January 01, 2019, 05:00:05 PM »
Looks good man. I'll probably use some appliance paint on my frames from now on. Lol. A nice beakup makes it look classy.
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slow Progress 74 cb550.

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