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Author Topic: 75 CB360 - bad omen "yatagarasu" build  (Read 24390 times)

Offline cb360j

  • Posts: 65
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #430 on: Aug 02, 2018, 00:30:21 »
Uuhmmmm,maybe, if your Shawn  ;)  Not having 'screen name' with carbs makes it 'interesting' trying to communicate. Not a problem when I only have one every two~three months but 3 in a week confuses the hell out of me  ;D


Haha nope Iím Jared

Offline Cursh

  • Posts: 258
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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #431 on: Aug 05, 2018, 12:04:26 »
is 21mm float height for 378 only or also factory displacement? (sorry to but in here)


I think I set mine to 19.5 (from the manual)


(I know we've moved past float height for ninja, but I'm just trying to get my knowledge on)

If you see me f**cking up it's because I have no idea what I'm doing. You can either tell me I'm fucking up or watch me find out on my own. Both are appreciated.

75 CB360 project.
1984 Honda Ascot (water-cooled paper weight)
2005 Honda Element "HD"
Bicycle enthusiast.
www.instagram.com/cursh

Offline crazypj

  • Posts: 13157
  • Split personality, I fake being smart
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #432 on: Aug 05, 2018, 13:21:28 »
21mm for all 360's using E10 plus it works fine even if you can get non-ethanol
'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: 457
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #433 on: Aug 05, 2018, 17:08:02 »
SPEAKING OF FUEL
I realize some of my problems - my initial 2 tank fill ups were with the gas we were using on the LS race bike - a 50/50 blend of 104 leaded and 89 regular

not sure if that is gonna have any downsides, but it wasn't burning like it should, and was also using too cold of plugs, so I put the proper plugs in, regular gas and she's doing MUCH better.

still slight misses if I am cruising around 4k rpm... not sure what that's about but a couple more tanks and i'll start doing plug chops and see what I can do with that

I also REALLY need to dynamically time the bike, and am waiting on a center stand from eBay to come in the post
'75 Honda CB360 - thread

Offline teazer

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #434 on: Aug 05, 2018, 18:07:51 »
When we ran our CB160 race bikes on the dyno we got slightly more power - consistently - with 89 octane street gas than we got with C12 race gas.  If the motor doesn't have a ton of compression, use the lowest octane gas that it will run without pinging.

Offline crazypj

  • Posts: 13157
  • Split personality, I fake being smart
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #435 on: Aug 05, 2018, 22:08:12 »
If you do a compression check I would expect you to get around 200~220 PSI. Surprisingly, with GS850 pistons the combustion chamber shape seems pretty good so 89~91 octane works best. I've even used 87, doesn't seem to mind although I think my exhaust system helps as it's lon. Not sure how much lead is in 104 octane but lead does foul plugs and rot out exhaust systems.
« Last Edit: Aug 05, 2018, 22:10:23 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: 457
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #436 on: Sep 15, 2018, 22:23:16 »
so my K&N filters keep drying out in the sun. like I'll park for a day while at work and come out and the filters are grey and dry.

that's not good

would someone tell me about the UNI UP-6200 filters? are they good and will they work well with my setup?
'75 Honda CB360 - thread

Offline irk miller

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #437 on: Sep 15, 2018, 22:27:38 »
I ran them on my 378.  They were great, though maybe a little rich on the bottom end.  Hard to say, since my memory is shit and the bike is sold.  Also had a "desert sled" style exhaust, so there were variables not common.

Offline MiniatureNinja

  • Posts: 457
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #438 on: Sep 17, 2018, 19:05:22 »
Found a brass pipe nipple, seams the right diameter to slip over the kicker if I chop the end nub off. Couple of fancy holes and drill and tap the end of the kick lever for a retaining bolt should be a nice touch
'75 Honda CB360 - thread