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Author Topic: 75 CB360 - bad omen "yatagarasu" build  (Read 16423 times)

Offline MiniatureNinja

  • Posts: 301
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #40 on: Jan 17, 2018, 23:32:40 »
I burned the shit out of my leg when I first started riding it.
a lot of people really like the exhaust and have offered to buy it or take it off my hands. I have CJ exhaust, which I like the looks of exhaust that is lower - but I plan to custom make a 2-2 exhaust that goes along the side of the bike like the CJ, but instead of the merge collector, it will have two upswept reverse cone mufflers.
'82 BMW R65LS
'75 Honda CB360 - thread

Offline trek97

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #41 on: Jan 18, 2018, 06:18:28 »
I plan to custom make a 2-2 exhaust that goes along the side of the bike like the CJ, but instead of the merge collector, it will have two upswept reverse cone mufflers.

I see and yea a pretty neat plan.
I built mine to accommodate the rearset pegs. 
This winter I was planning to lower my pegs a bit, while I had engine out for 378 conversion.
The dang weather has slowed progress on my wifes 78 Hondamatic.  So not sure if I will get to my bike.   ::)

Offline MiniatureNinja

  • Posts: 301
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #42 on: Jan 18, 2018, 14:01:45 »
I see and yea a pretty neat plan.
I built mine to accommodate the rearset pegs. 
This winter I was planning to lower my pegs a bit, while I had engine out for 378 conversion.
The dang weather has slowed progress on my wifes 78 Hondamatic.  So not sure if I will get to my bike.   ::)

I bought the bike with the Old School Speed rearsets on there - I absolutely could not stand them. The right angle joins they used were totally wrong and downright dangerous for that application. I bought some spherical rod ends and made it about 100x better, but still ended up finding someone on Reddit that traded me straight accross for stock foot controls. I also chopped off the passenger peg mounts already. if (big if) I decide to go with rear set controls I will custom mount them, but I doubt I will, I like they stock position even with clipons (i'm short 5'7" and 130lbs)
'82 BMW R65LS
'75 Honda CB360 - thread

Offline MiniatureNinja

  • Posts: 301
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #43 on: Jan 18, 2018, 14:05:57 »


this is my inspiration for exhaust, not sure what or who this picture is from. but I want to have the mufflers look like the old super sport 4cyl bikes but just on the one side
'82 BMW R65LS
'75 Honda CB360 - thread

Offline crazypj

  • Posts: 12937
  • Split personality, I fake being smart
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #44 on: Jan 18, 2018, 16:06:09 »
I built a right side exhaust on my '391'
Used parts from a 3 valve CB/CM250/400, Ford Escort (FWD) and some 2" dia pipe I pulled from a skip (we don't 'do' dumpsters in Britain) It was no where near interfering with kick-starter.
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline MiniatureNinja

  • Posts: 301
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #45 on: Jan 18, 2018, 16:14:55 »
yea see, my limited time frame and product availability I just had to work with essentially straight pipe and the left over parts from the cut down exhaust - I wanted to ride it that weekend. Now that winter has struck I am going to be doing things a lot more proper. it's amazing what can be done with proper planning and skills. neither of which was available to me last year. LOL
'82 BMW R65LS
'75 Honda CB360 - thread

Online irk miller

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #46 on: Jan 18, 2018, 16:19:04 »
I built a right side exhaust on my '391'
Used parts from a 3 valve CB/CM250/400, Ford Escort (FWD) and some 2" dia pipe I pulled from a skip (we don't 'do' dumpsters in Britain) It was no where near interfering with kick-starter.

Did you ever get that bike back, PJ?

Offline crazypj

  • Posts: 12937
  • Split personality, I fake being smart
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #47 on: Jan 18, 2018, 16:20:53 »

Forgot to answer initial question. Nope, but no one has tried to register it either. Friend in Britain checks things for me every so often. If it turns up I'll have to give him legal powers to recover and prosecute the perps. It's a bit expensive to do but still cheaper than me flying home (around 350~400 or less than $500 instead of $1000~1300 airfare)

I used the XL250 swingarm on my second 360.  It was a super easy swap to dual shocks.  And like PJ said, I also used 042 copper base gasket to get deck height right. 

I'd forgotten you did 378 conversion.  :-[
Couldn't remeber what swing arm you got but remembered you said somewhere about a 'straight swap' (or something close?)
No one believes a relatively small capacity increase can have such a dramatic effect  - until they do it.
It's so good you almost want to keep it a secret when chasing down much bigger bikes on twisty roads  ;D
(Guy on $23,000 'Paul Smart' Replica Ducati was VERY surprised, his buddy on the 'cheap Duc - about $18,000 couldn't keep up)
 I guess ability counts for more than how much money you have - sometimes  8)


this is my inspiration for exhaust, not sure what or who this picture is from. but I want to have the mufflers look like the old super sport 4cyl bikes but just on the one side

I like those pipes, from the angle of manifold end they look 'vintage' Triumph?
 
« Last Edit: Jan 18, 2018, 16:31:35 by crazypj »
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline MiniatureNinja

  • Posts: 301
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #48 on: Jan 18, 2018, 16:26:27 »
I'd forgotten you did 378 conversion.  :-[
No one believes a relatively small capacity increase can have such a dramatic effect  - until they do it.
It's so good you almost want to keep it a secret when chasing down much bigger bikes on twisty roads  ;D
(Guy on $23,000 'Paul Smart' Replica Ducati was VERY surprised, his buddy on the 'cheap Duc - about $18,000 couldn't keep up)
 I guess ability counts for more than how much money you have - sometimes  8)

I am really set on wringing a reasonable (daily ridden) amount of performance out of this bike after a friend on a newer cb900 was able to beat me in a gentle race by a good 3-4 seconds. I know riding skill played a part too as he is a much more experienced rider than me, but there were sections I could have used a little more acceleration. (I plan to go with a 37 tooth rear sprocket too
'82 BMW R65LS
'75 Honda CB360 - thread

Online irk miller

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #49 on: Jan 18, 2018, 16:32:22 »
I'm running an XL250 rear swinger and wheel, which also has an XL250 42t sprocket.  It will get your front end off the ground, but don't expect to top 80mph.  That's the downside, but it will wheelie which has it's own brand of fun..