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Offline Retro Rocket

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70's bike porn
« on: January 11, 2016, 12:28:27 AM »
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Offline MRieck

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Re: 70's bike porn
« Reply #1 on: January 11, 2016, 03:53:54 AM »
Notice the shift point RPM.
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Offline gschuld

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Re: 70's bike porn
« Reply #2 on: January 11, 2016, 04:27:07 AM »
Shift point just over 8000rpm.  That's pretty tame... ::)  is that the sissy setting?  It sure sounds like a high revving long duration cam. ???

George
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Offline gschuld

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Re: 70's bike porn
« Reply #3 on: January 11, 2016, 09:13:26 AM »
Thinking about if some more, if that cam is as long a duration as it sounds, I'll bet that red mark at 8000 is the "need to stay above this rpm to stay in the power band" mark, not a shift rpm.  Probably something like a 8000 to 11,500 power band.  Sounds about right for a highly tweaked vintage 750 road racer.

I imagine they didn't skimp on the valve springs. ;D

George
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Offline turboguzzi

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Re: 70's bike porn
« Reply #4 on: January 11, 2016, 12:19:13 PM »
more likey it's the other way round.... as this is a unique museum piece, it's a "dont go over" line to save on engine wear and tear.

 
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Offline MRieck

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Re: 70's bike porn
« Reply #5 on: January 11, 2016, 01:19:45 PM »
Quote from: turboguzzi on January 11, 2016, 12:19:13 PM
more likey it's the other way round.... as this is a unique museum piece, it's a "dont go over" line to save on engine wear and tear.
I agree
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Offline Retro Rocket

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Re: 70's bike porn
« Reply #6 on: January 11, 2016, 01:50:14 PM »
This was the first Honda to wear the now famous RSC/HRC  tri color livery... ;)   How good does it sound.... 8)
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Offline MCRider

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Re: 70's bike porn
« Reply #7 on: January 11, 2016, 01:58:41 PM »
Quote from: MRieck on January 11, 2016, 01:19:45 PM
Quote from: turboguzzi on January 11, 2016, 12:19:13 PM
more likey it's the other way round.... as this is a unique museum piece, it's a "dont go over" line to save on engine wear and tear.
I agree

Yeah, he was doggin it around the track.
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Offline SOHC4 Cafe Racer Fan

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Re: 70's bike porn
« Reply #8 on: January 11, 2016, 02:49:54 PM »
Did you guys get a load of those baffled velocity stacks, too.
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"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

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Offline seanbarney41

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Re: 70's bike porn
« Reply #9 on: January 11, 2016, 02:51:54 PM »
Quote from: CB750 Cafe Racer Fan on January 11, 2016, 02:49:54 PM
Did you guys get a load of those baffled velocity stacks, too.
pretty sure those are plugs to keep the bugs out when it isn't running
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Offline Retro Rocket

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Re: 70's bike porn
« Reply #10 on: January 11, 2016, 03:09:22 PM »
Quote from: seanbarney41 on January 11, 2016, 02:51:54 PM
Quote from: CB750 Cafe Racer Fan on January 11, 2016, 02:49:54 PM
Did you guys get a load of those baffled velocity stacks, too.
pretty sure those are plugs to keep the bugs out when it isn't running

Yep, My old set of CR31's had the same stacks as those, No "baffles"... ;D ;)
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750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline SOHC4 Cafe Racer Fan

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Re: 70's bike porn
« Reply #11 on: January 11, 2016, 04:15:50 PM »
By CR29s have straight rubbers that fit flush over the stack trumpets.  Those looked like they were either plugs into the stacks or (on my iPhone) like a combo of a baffled stack.  Trick of the eye, I guess -- or just old age!
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1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Retro Rocket

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Re: 70's bike porn
« Reply #12 on: January 11, 2016, 04:21:06 PM »
Quote from: CB750 Cafe Racer Fan on January 11, 2016, 04:15:50 PM
By CR29s have straight rubbers that fit flush over the stack trumpets.  Those looked like they were either plugs into the stacks or (on my iPhone) like a combo of a baffled stack.  Trick of the eye, I guess -- or just old age!

You are correct Don, Mine also had the stock rubber covers but its common to see on race bikes those types of plugs in the stacks and exhaust pipe... ;)
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750 K2 1000cc
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If You can't fix it with a hammer, You've got an electrical problem.

Offline 754

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Re: 70's bike porn
« Reply #13 on: January 11, 2016, 06:30:41 PM »
 
Quote from: Retro Rocket on January 11, 2016, 01:50:14 PM
This was the first Honda to wear the now famous RSC/HRC  tri color livery... ;)   How good does it sound.... 8)
  I thought that was a FunJimmy paint job...
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Offline johno

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Re: 70's bike porn
« Reply #14 on: January 12, 2016, 01:58:14 AM »
sounds like a modified roady ! give me four CR meggas anyday  ;) ;D    just like my woman,  I like em screaming :o ::)
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