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Author Topic: CB360 barn find (actually pulled from a barn)  (Read 3343 times)

Offline Tune-A-Fishİ

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Re: CB360 barn find (actually pulled from a barn)
« Reply #30 on: Jan 25, 2017, 12:59:19 »
I don't think these guys like me very much or pay attention.  HAHA.

The swap is literally just bearings and a small 5/8" shim, plus axle spacers. 

Here is mine with dual 300mm discs.  CB750 front end, EX500/CB360 rotors, GS500 calipers (came on lots of Suzukis), CB360 hub, 70s era Suzuki 18 aluminum rim:



A bracket for the GS calipers


The rotors were made by drilling out the rivets on the stock 360 rotors, taking the stock center and bolting up EX 500 rotors to make sort of a floating disc.

It's on my thread if you wanna see... http://www.dotheton.com/forum/index.php?topic=70781.15

So the EX500 rotor mounts direct to the CB hub? if yes, can you send me a template for the suzy bracket, I think this is a good solution for the BSA/CB750 front end.
"I didn't come here and I ain't leavin"  Willie Nelson

"love hard, live fast, die fun" Kacey Musgraves

"Like a Wreckin Ball!" Eric Church

Online irk miller

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Re: CB360 barn find (actually pulled from a barn)
« Reply #31 on: Jan 25, 2017, 13:08:09 »
So the EX500 rotor mounts direct to the CB hub? if yes, can you send me a template for the suzy bracket, I think this is a good solution for the BSA/CB750 front end.
Sure will.  I have notes at home.

I took a CB360 hub, the center of the cb360 rotor and the EX rotor to make it work.


Offline advCo

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Re: CB360 barn find (actually pulled from a barn)
« Reply #32 on: Jan 25, 2017, 13:10:22 »
I don't think these guys like me very much or pay attention.  HAHA.

HA! I forgot we talked about this at Barber. My 360 has been under a sheet since then  :-\

I am trying to get a cheap set of 550 forks, I have a Nissin caliper from the swap meet that may work but I do want to do dual discs if I end up doing the swap because why not.
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline Tune-A-Fishİ

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Re: CB360 barn find (actually pulled from a barn)
« Reply #33 on: Jan 25, 2017, 13:12:59 »
Sure will.  I have notes at home.

I took a CB360 hub, the center of the cb360 rotor and the EX rotor to make it work.



I have a complete EX front end, maybe I can make all the parts swap but if the suzy is the shit ill find one on eBay... wonder if that is a common pattern, I have a Brembo rotor and cali also.

Good heads up mang!
« Last Edit: Jan 25, 2017, 13:15:22 by Tune-A-Fishİ »
"I didn't come here and I ain't leavin"  Willie Nelson

"love hard, live fast, die fun" Kacey Musgraves

"Like a Wreckin Ball!" Eric Church

Offline advCo

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Re: CB360 barn find (actually pulled from a barn)
« Reply #34 on: Jan 25, 2017, 13:27:27 »
I wonder if these from the earlier EX500 would be compatible as well... I think this is off a '90. They look sweet.



"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline Tune-A-Fishİ

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Re: CB360 barn find (actually pulled from a barn)
« Reply #35 on: Jan 25, 2017, 13:43:02 »
 hole, very likely same pattern
"I didn't come here and I ain't leavin"  Willie Nelson

"love hard, live fast, die fun" Kacey Musgraves

"Like a Wreckin Ball!" Eric Church

Offline cyglide

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Re: CB360 barn find (actually pulled from a barn)
« Reply #36 on: Feb 07, 2017, 16:46:13 »
I haven't forgotten about this project. Thanks for all the input on the front end. I'm searching for a CB750 or CB550 front end, but if I haven't found one for a decent price by the time I'm ready to rebuild the brakes and wheel bearings I'm just going to buy a billet top clamp from DCC and stick with the stock front end for a while anyways. Theres a local vintage motorcycle salvage company and when I called asking for a stock top clamp I was quoted $150. The billet one is cheaper than that and probably more durable. I asked if he had a cb750 front end and he laughed and said no way those are hard to find.... I might find a new salvage guy...

 I have the frame detabbed, going to be finishing cleaning a few things up on it tonight with the grinder, and then it will be headed to get blasted and powder coated with the swing arm on Thursday. I've decided to stick with the stock seat setup because 1. it's easy, and 2. the thin aftermarket seats look like my tailbone will be hurting after one run down a gravel road. Hopefully have it back in a few weeks (it's getting done for free I just can't be pushy on how quickly it gets done), and then hopefully will have a rolling chassis by the end of the month. In the mean time, I'm going to disassemble the wheels, clean and paint everything, and reassemble with new bearings, brake shoes, and tires. (thats the plan, but I am looking to buy a new enclosed trailer soon so some of the bike budget may go towards that)

I checked compression on the motor. Kind of. The motor is already out, so I basically tried to hold the motor inplace on the cardboard while trying to kick it over. Didn't work so well. both cylinders came up to about 90 psi after a few attempts at kicking it, but the motor was flopping around while I was trying to do this so probably not accurate. If I want to hook up the electric start on this to crank it over to check compression what do I need to do? Hook the lead up from the starter to a battery, then hook the battery ground to the engine somewhere? If anyone has advice I would appreciate it.

Offline cyglide

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Re: CB360 barn find (actually pulled from a barn)
« Reply #37 on: Feb 10, 2017, 11:24:12 »
Got everything sent out for blasting and powder coat yesterday. Spent Wednesday night finishing the prep work of removing the bushing and everything from the swing arm, and finishing up smoothing out the frame in the spots I cut tabs off of.

The shock mount bushings were a real pain to get out. I tried the socket pull through method I've seen on here but that didn't work. I had to resort to burning out the rubber part, and heating up the swing arm. I then took a hacksaw blade and cut through the outer metal ring of the bushing, thing went to work at it with a hammer and chisel and was finally able to get them out. The first side took forever, I was being as careful as possible to not put any gouges into the swing arm. The other side popped out pretty easily once I cut it.

After that was all finished up I threw the motor up on the bench and spent about 20 minutes cleaning. Man theres a lot of dirt that is caked on it. It's going to take forever. Any good methods for cleaning the fins, or is it just elbow grease? I'll be painting the motor black so if I have to use a heavier wire brush it should matter to much.

For the swing arm bushings and the pivot shaft, should the shaft be greased with just an axle grease before reassembling? I plan to buy a set of those bronze bushings to use since the stock ones got destroyed as I took them out.

Shock bushing 1


Shock bushing 2


Going to work with the chisel


A little heat


more chisel


Frame ready to go


Motor set up to be cleaned.



Offline advCo

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Re: CB360 barn find (actually pulled from a barn)
« Reply #38 on: Feb 10, 2017, 13:01:35 »
When you install new shock mount bushings... there is a very easy way to do it. I use 2 sockets, one large and one smaller one. The smaller one should be the exact size of the bushing, and the second should be larger. Put a long bolt between them and a washer on either side. Tighten with an impact until the bushing is seated. You can freeze them to help it go easier. I use this method to remove them as well, as it takes a lot less work and they come out in one piece.
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline cyglide

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Re: CB360 barn find (actually pulled from a barn)
« Reply #39 on: Feb 10, 2017, 16:38:02 »
Thanks for the tip. I tried that to remove them but they wouldn't budge. Might have if I let them sit in some PB blaster over night but I didn't have time to do that. I'll use this when I put them back together for sure.