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Author Topic: '74 CB 360 Cafe Build - Luna - "Done"!  (Read 49358 times)

Offline advCo

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'74 CB 360 Cafe Build - Luna - "Done"!
« on: Nov 04, 2014, 19:56:24 »
Hey Guys!

This is my first post in the forum, and my first cafe racer build. I recently acquired a 1974 Honda CB360G, all original parts except for a set of Moto Guzzi pipes (for sale, if anyone's interested  :o) I will also be selling most of the factory body parts (gauge cluster, handlebars and controls, fenders, seat, etc.

I bought the bike about a month ago, in non-running condition with plans to completely strip, recondition and re-haul the motor, fuel and electrical system, as well as fabricate custom body pieces - standard cafe racer build. I have a background in 3d modeling and CNC/composite constructions, so I will be doing a lot of precision machining and fabrication.

So far I've completely cleaned and soaked the carbs, stripped the bike down to the frame, and I'm currently in the process of tracking down my electrical problem (suspecting its a ground problem - I've replaced battery, coils, points and condenser - I have power to the coils but no spark coming out....for another day).

Here are some pics of the bike as it stands right now:

« Last Edit: Apr 25, 2016, 21:52:51 by adventurco »
"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
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

Offline Zoltan

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #1 on: Nov 04, 2014, 21:10:20 »
Welcome to DTT! If you didn't already get a manual, you can find one for free online. I would make sure your timing is correct as a lot of times that can solve a lot of spark issues. Also I recently replaced my points with some cheap things I found on eBay and it messed up my whole timing. You have to make sure the wires hooked up to the blades on the points are extremely tight and not sticking out too far where they ground out to your cover. Also make sure your ground is nice and tight and on contact to just the frame with no paint underneath.
70' Triumph T100c

Offline warpt_99

  • Posts: 144
Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #2 on: Nov 05, 2014, 12:08:06 »
I second the manual. This should be the first purchase or download with any new bike. hope this works for you and pay credit the OP - http://www.dotheton.com/forum/index.php?topic=6405.0

Offline Toyotacrawler

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #3 on: Nov 05, 2014, 13:44:14 »
Cool! Your 360 looks to be in pretty good shape. I can't see any rust! Looking forward to your build!
1975 CB360 Build - http://www.dotheton.com/forum/index.php?topic=60325.0
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"You can manufacture weapons and you can purchase ammunition,
but you can't buy valor and you can't pull heroes off an assembly line"
Sergeant John B. Ellery, U.S. 1st Infantry Division

Offline advCo

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #4 on: Nov 05, 2014, 19:36:29 »
Thanks guys. It is definitely pretty clean - minor rust and pitting of chrome but to be expected.

The guy had a Clymer's manual for me - as well as the Rick's regulator/rectifier combo.
"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
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

Online irk miller

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #5 on: Nov 05, 2014, 19:38:30 »
A sucker is  born every day.  ;)

And get the factory manual.  There are some pretty significant inaccuracies in the Clymer manual.

Offline Sonreir™

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #6 on: Nov 07, 2014, 17:19:25 »
Following along.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Offline advCo

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #7 on: Nov 10, 2014, 18:55:34 »
That Honda shop manual is a godsend - especially the wiring diagram. I'll be using the Clymer's to start a fire this winter...

Started removing some of the welded on weight this weekend, center stand, some tabs, etc. Flipped the bars so it would start looking like a bit of a cafe. Removed all of the wiring that I don't need to start her up (lights, old regulator & rectifier wiring). Hopefully have her firing up next weekend - then onto pulling the motor and really cleaning up the frame!

Also - any of you guys on here familiar with the paint code or paint color name for the 74? I found about 20 different shades of blue for Hondas and they all look slightly off, as js to be expected on a monitor. I'm hoping to find a close match to the stock color to repaint tank and seat pan.

And I'm looking to get a nice 2-into-1 clean, short exhaust. Anyone know of any companies that make a solid 2-into-1?
"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
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

Offline Sonreir™

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #8 on: Nov 10, 2014, 19:18:11 »
The color is called Hawaiian Blue Metallic.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Offline advCo

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #9 on: Nov 10, 2014, 20:34:13 »
Brilliant. Thanks!
"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
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

Offline advCo

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #10 on: Nov 13, 2014, 09:00:04 »
Question for those of you with engine overhaul experience - this machine has about 9,000 miles logged on the odometer. I was planning on pulling the engine to clean and detail it regardless, but with this amount of miles on the bike would you guys still recommend breaking down the block, replacing gaskets, checking the internals, making all the mods/adjustments I've read here?

I'm not afraid of a challenge by any means - just looking for some opinions.
"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
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

Offline Sonreir™

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #11 on: Nov 13, 2014, 13:08:49 »
If compression is good and the engine isn't leaking, I'd avoid creating problems where you don't have them.  Might be worth removing the head and checking the cam chain tensioners and overall health, but I wouldn't mess with the bottom end (aside from the oil filter and pickup) unless you need to.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Online trek97

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #12 on: Nov 13, 2014, 20:01:30 »
If compression is good and the engine isn't leaking, I'd avoid creating problems where you don't have them.  Might be worth removing the head and checking the cam chain tensioners and overall health, but I wouldn't mess with the bottom end (aside from the oil filter and pickup) unless you need to.

+1  and as long as you got the right cover open to clean filter cup. DEFINITLEY get a new o-ring for oil cup BEFORE you open it.  they are cheap from the honda shop. 

 I would consider new clutch discs and heavy duty springs, (bore-tech.com, cb350 springs)

heres the info i posted about the improved oil pickup, sonreir is talking about.  its a cheap and simple swap.

http://www.hondabrat.com/2013/12/honda-cb360-oil-pickup-possible-failure.html
« Last Edit: Nov 13, 2014, 20:03:58 by trek97 »

Offline advCo

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'74 CB 360 Cafe Build! (the beginning)
« Reply #13 on: Nov 17, 2014, 23:15:32 »
Thanks for the advice gents. I will definitely be doing clutch discs and springs. The oil mods are a must from what I've read, plus I've got some minor leakage from the oil pan or drain plug somewhere that must be remedied.

Still been chasing down my spark issue. Maybe you guys have some input?

I replaced ignition switch, battery, points, condenser and coils. With Key on (I bypassed the kill switch) I have power all the way to the black wire that splits to the two coils. When I turn the motor and put a test light on the points, no power ever reaches there. All wires and connections look good.  I'm sure there's a variable I'm missing, but I'm currently stumped.

Freehand sculpted  a couple of seat pan/rear fairing mock ups today. Came out a bit smaller than it should be (got carried away with the hot knife :D) but I'm liking the lines so far.

Til further notice.

-Nick
"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
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

Offline Sonreir™

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Re: '74 CB 360 Cafe Build! (the beginning)
« Reply #14 on: Nov 17, 2014, 23:40:03 »
Have you read power at the points with a multimeter?
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys