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Author Topic: Something for Danie on a blue Monday  (Read 851 times)

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Offline sidetrack

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Something for Danie on a blue Monday
« on: February 15, 2021, 11:57:32 am »
« Last Edit: February 15, 2021, 11:58:18 am by sidetrack »
Little by little, one travels far
J.R.R Tolkien
 
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Offline sidetrack

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Re: Something for Danie on a blue Monday
« Reply #1 on: February 15, 2021, 12:00:50 pm »
Kom ons gooi maar n Honda ook teen Sochiro se wil

https://www.classic-motorbikes.com/en/honda-ns-500-1985/
Little by little, one travels far
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Online Dux

Re: Something for Danie on a blue Monday
« Reply #2 on: February 15, 2021, 12:05:10 pm »
After this weekend Danie is anything but blue  :biggrin:
But these bikes are awesome
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Offline Edgar

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Re: Something for Danie on a blue Monday
« Reply #3 on: February 15, 2021, 12:06:13 pm »
Proper racing machines  :3some:
 

Offline sidetrack

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Re: Something for Danie on a blue Monday
« Reply #4 on: February 15, 2021, 12:10:51 pm »
My all time favorite in that colour scheme  :drif:
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Offline Dorsland

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Re: Something for Danie on a blue Monday
« Reply #5 on: February 15, 2021, 12:29:30 pm »
I would've bought that Honda but the blerrie front tyre has cracks in it.  I'll maar keep looking.  The right one will come along eventually.
'Tis the time’s plague, when madmen lead the blind.

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Offline Dorsland

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Re: Something for Danie on a blue Monday
« Reply #6 on: February 15, 2021, 12:30:59 pm »
Those exhausts  :drif:
'Tis the time’s plague, when madmen lead the blind.

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Offline Roxtar

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Re: Something for Danie on a blue Monday
« Reply #7 on: February 15, 2021, 12:56:28 pm »
My all time favorite in that colour scheme  :drif:
[/quote

++1 :thumleft:
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Offline OomD

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Re: Something for Danie on a blue Monday
« Reply #8 on: February 15, 2021, 03:26:13 pm »
Excuse my ignorance, but why dry clutches?

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Offline Altie7deLaan

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Re: Something for Danie on a blue Monday
« Reply #9 on: February 15, 2021, 03:36:44 pm »
Dry clutches because you do not have to count them in with the wet weight, so your bike weighs less......... :peepwall:
Only kidding:
"Dry clutches are used on some racing engines to avoid the performance-sapping drag of spinning in oil"
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Online 2StrokeDan

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Re: Something for Danie on a blue Monday
« Reply #10 on: February 15, 2021, 05:11:04 pm »
Dry clutches because you do not have to count them in with the wet weight, so your bike weighs less......... :peepwall:
Only kidding:
"Dry clutches are used on some racing engines to avoid the performance-sapping drag of spinning in oil"

Can also take lots more abuse and grips better.
 
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Online 2StrokeDan

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Re: Something for Danie on a blue Monday
« Reply #11 on: February 15, 2021, 05:12:28 pm »
Those "Malbroer" Yammie YZR's are just too sweet for any language.

Thanks Sidetrack!
 

Offline BuRP

Re: Something for Danie on a blue Monday
« Reply #12 on: February 15, 2021, 07:42:07 pm »
Excuse my ignorance, but why dry clutches?

I'm drooling here @sidetrack , lovely stuff this.

OomD, the main reasons are mentioned here already, but the mainest one is the clutch can be made smaller - hence will be lighter.
No oil inbetween the plates therefore a higher friction coefficient, and therefore a smaller clutch(basket) will do.
Cooling is problematic but with sintered modern materials this ain't a problem, run the bugger until it glows.... and indeed no oil-friction so the engine will produce more power to the back wheel  :thumleft:
Yeah it is noisy, but for racing purposes this doesn't matter.
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Offline Dustbiter

Re: Something for Danie on a blue Monday
« Reply #13 on: February 16, 2021, 08:40:12 am »
I came across this on youtube yesterday, but it was posted in 2013, so 2StrokeDan might have seen it already.

<iframe width="560" height="315" src="
" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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Offline BuRP

Re: Something for Danie on a blue Monday
« Reply #14 on: February 16, 2021, 11:13:22 am »
Kom ons gooi maar n Honda ook teen Sochiro se wil

Soichiro was a legend, but simultaneously not perfect... for he absolutely despised twostrokes  ;D


Looking again at this gorgeous monster, anyone knows what that aluminium container is post-stinger?
Young lads would say "Catalyst!" these days, but I can't figure out what it is doing there....
« Last Edit: February 16, 2021, 11:13:59 am by BuRP »
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Online 2StrokeDan

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Re: Something for Danie on a blue Monday
« Reply #15 on: February 16, 2021, 11:22:50 am »
Kom ons gooi maar n Honda ook teen Sochiro se wil

Soichiro was a legend, but simultaneously not perfect... for he absolutely despised twostrokes  ;D


Looking again at this gorgeous monster, anyone knows what that aluminium container is post-stinger?
Young lads would say "Catalyst!" these days, but I can't figure out what it is doing there....

That is actually the silencer, weirdly shaped I know.

This is the NS500, before the V4 NSR's, and it has the two outer cylinders upright, and the centre one pointing to the front wheel.  It is this centre exhaust that makes a big 360 turn under the bottom frame rails to gain length.
The roadgoing NS400R was based, loosely, on this model.
« Last Edit: February 16, 2021, 11:30:56 am by 2StrokeDan »
 

Offline Altie7deLaan

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Re: Something for Danie on a blue Monday
« Reply #16 on: February 16, 2021, 12:02:10 pm »
Man, ek kan nie ophou kyk na die bonies nie. Genoeg om enige man se kniee lam te maak.
Hoekom sukkel die ouens so om n rc213V te ry, hoe gaan hulle regkom met hierdie som`bitches?
« Last Edit: February 16, 2021, 12:02:47 pm by Altie7deLaan »
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Offline BuRP

Re: Something for Danie on a blue Monday
« Reply #17 on: February 16, 2021, 12:12:19 pm »
That is actually the silencer, weirdly shaped I know.

Looks like it yeah, but can't help wondering "Why"?
The other two (think ALL others...) are round pipes, stinger open-through it concentrically but perforated to squash high-frequency pulses .... simple, effective and nigh-on zero restriction (you also know that 'back pressure' is the wrong term as a wavetrain is concerned here) and weightwise very light - lightest!
So, why such a complex shape, which in addition is heavier than a round tube?
Baffled here, excuse the pun  :P

Mind you, if it would turn out that there's a (guessing here!) engine powerband-affecting purpose (it's the 3cyl after all) to this then I'd take that.... but only if backed by some wiskunde, sorry, I've been dabbling with this stuff when I was younger - but a straightforward (sorry, another pun lol) plain 'cilencer' I reckon it is not Danie  ;)
« Last Edit: February 16, 2021, 12:14:34 pm by BuRP »
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Online 2StrokeDan

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Re: Something for Danie on a blue Monday
« Reply #18 on: February 16, 2021, 01:40:43 pm »
I agree Bart, unusual, and i checked on a little 1/8th scale model I have of this bike, and it simply seems like a weirdly shaped muffler.
 

Offline Altie7deLaan

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Re: Something for Danie on a blue Monday
« Reply #19 on: February 16, 2021, 02:30:08 pm »
.
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"Choose a bike that will be the most fun in the challenging spots, not one that will be the most comfortable in the easy spots." Walter Colebatch