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Author Topic: 75 CB360 - bad omen "yatagarasu" build  (Read 37808 times)

Offline MiniatureNinja

  • Posts: 521
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #160 on: Mar 27, 2018, 14:35:56 »
I edited previous post.
Exhaust is way to short if it's exiting around swing arm pivot point, your not going to run open pipes (could be interesting with 125~130 secondary mains on a dyno to see just what it can do) I would guess around 41~42bhp at te wheel (compared to 36 at the crank that Honda claimed)
CB350's dyno around 26~28bhp, 360's 24~30 at the wheel (obviously more production variations on 360)

oh no, I know these bikes like long exhaust - I plan to have the exhaust come under the frame then right at the back of the frame kick out and up to two reverse cones - I posted a picture of my idea earlier in this thread



EDIT: got piston rings end gapped - now just waiting on the gasket I ordered to arrive and my cylinder head to be done so I can throw this all back together!
« Last Edit: Mar 27, 2018, 18:44:32 by MiniatureNinja »
'75 Honda CB360 - thread

Offline MiniatureNinja

  • Posts: 521
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #161 on: Mar 29, 2018, 00:24:25 »
OK

so I owned up to my mistakes thanks to members here for steering me true!

EDIT: I REALLY hope you guys approve because i DON'T wanna do this again.
note: I plan to weld a 12mm bar all the way through and then cut in the middle between the frame - so that it's straight and I will drill a hole in the ends for a 6mm round head bolt and washer to mount the shocks


chopped off the stupid shock mounts I was so proud of...




welded "proper" ones this time




mocked up how the seat and cowl will look:


I did a bunch of other stuff but I am dead tired and will post more tomorrow
« Last Edit: Mar 29, 2018, 00:37:59 by MiniatureNinja »
'75 Honda CB360 - thread

Offline teazer

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #162 on: Mar 29, 2018, 01:30:08 »
Much better.

Online WhyNot

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #163 on: Mar 29, 2018, 08:59:43 »
Absolutely better......but I'm no welder, wish I could though.

Maybe someday I'll take a class and buy a cheap welder.
1975 CB750K5
1974 CB350F

Offline crazypj

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #164 on: Mar 29, 2018, 14:47:43 »
Absolutely better......but I'm no welder, wish I could though.

Maybe someday I'll take a class and buy a cheap welder.
Just buy a cheap welder and make a lot of mistakes  ;D (just make sure your not doing anything structural until you figure it out)
A lot of cheap 'buzz box' welders turn up at garage sales and Craigslist and a LOT of good work has been done without using TIG, MIG or expensive welders. It is easier with a multi adjustable box plus the learning curve isn't as steep. Welding takes practice more than anything else. Long long time ago (probably around 1975~76?) my brother bought a cheap 100A 'buzz box'
After a few months (and several pounds of electrodes) I was able to weld any steel you will find on a motorcycle I most proud of repair to rear mudguard mount on Honda S90 he had, it was only about 0.018"~0.020" thick.(someone with an S90 probably knows gauge  ;D ) Looked like TIG (which I hadn't even heard of at the time) Being a kid helped as well, you don't know you 'can't do that' so you just do it  8)
'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

Online WhyNot

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #165 on: Mar 29, 2018, 15:14:45 »
Just buy a cheap welder and make a lot of mistakes  ;D (just make sure your not doing anything structural until you figure it out)
A lot of cheap 'buzz box' welders turn up at garage sales and Craigslist and a LOT of good work has been done without using TIG, MIG or expensive welders. It is easier with a multi adjustable box plus the learning curve isn't as steep. Welding takes practice more than anything else. Long long time ago (probably around 1975~76?) my brother bought a cheap 100A 'buzz box'
After a few months (and several pounds of electrodes) I was able to weld any steel you will find on a motorcycle I most proud of repair to rear mudguard mount on Honda S90 he had, it was only about 0.018"~0.020" thick.(someone with an S90 probably knows gauge  ;D ) Looked like TIG (which I hadn't even heard of at the time) Being a kid helped as well, you don't know you 'can't do that' so you just do it  8)

Funny story........been watching the local and not so local cl, haven't found anything.

Working every day of the week don't get time for yard sales.

Got any recommendations for a cheapie at HF. That's my only go to source at the time?

Thanks for the help, and sorry for the momentary threadjack mini.
1975 CB750K5
1974 CB350F

Offline MiniatureNinja

  • Posts: 521
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #166 on: Mar 29, 2018, 15:24:52 »
Funny story........been watching the local and not so local cl, haven't found anything.

Working every day of the week don't get time for yard sales.

Got any recommendations for a cheapie at HF. That's my only go to source at the time?

Thanks for the help, and sorry for the momentary threadjack mini.

the vulcan welders from HF have been getting pretty great reviews from professional welders on youtube - I bought their migmax 215 and it's on backorder... they are always out of stock, seams to be a very high demand for them as they are VERY good for the price.

went to the local napa and bought a firepower 165 - it's a 230v 50amp welder - I could have spend half that getting a cheaper one and spent the rest on classes and be much better at it.
'75 Honda CB360 - thread

Offline advCo

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #167 on: Mar 29, 2018, 15:28:15 »
Funny story........been watching the local and not so local cl, haven't found anything.

Working every day of the week don't get time for yard sales.

Got any recommendations for a cheapie at HF. That's my only go to source at the time?

Thanks for the help, and sorry for the momentary threadjack mini.

FWIW I use the Harbor Freight (Chicago Electric?) MIG 170, which runs on 220v. I use gas with it and have had great results.

Online WhyNot

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Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #168 on: Mar 29, 2018, 15:34:20 »
Only place I have 220 is at the dryer.

So, I'd have to get a 110.

Thanks
1975 CB750K5
1974 CB350F

Offline MiniatureNinja

  • Posts: 521
Re: 75 CB360 - bad omen "yatagarasu" build
« Reply #169 on: Mar 29, 2018, 16:46:17 »
Only place I have 220 is at the dryer.

So, I'd have to get a 110.

Thanks

that means you already have a 220 breaker... just run a new wire to a new outlet, that's what I did - only 230 I had was at the electric range
'75 Honda CB360 - thread