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Author Topic: 1977 cb750f2 (915cc)  (Read 229090 times)

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Offline Retro Rocket

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Re: 1977 cb750f2 (915cc) For Sale
« Reply #1025 on: September 03, 2014, 06:47:43 pm »
Quote from: welard on September 03, 2014, 06:23:08 pm
Thanks once again for the input guys.

In all probability I will be using the CR carbs which Retro says lend themselves a little better towards pods, but stock box provides a higher level of intake air stability.

Before posting I had already decided that the stock box would be my way to go mainly because I don't need the headache or expense as I mentioned, and my thoughts were turning to how to make that thing look better, in amongst all the nice bits that I'm planning on using.

Hey Retro, sorry I wasn't implying that anyone was emotional about the topic on this forum.....I actually started reading on another forum and the guys over there were dropping F bombs and calling each other offensive names about this topic.

Unlike here where its quite civilized and dignified-ish....

No need to apologize mate, just posting some info for you without the emotion that usually creeps into these threads, usually starts with "its his bike, he can do what ever he wants",   Some think that trumps logic , engineering and physics , I tend to disagree.... ;D ;D ;)

Hey Brent, did you ever consider using ram tubes , with the stock airbox, to build airflow at higher speeds like a lot of modern bikes do ? , I've toyed with this idea for some time now..
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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 bwaller

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Re: 1977 cb750f2 (915cc) For Sale
« Reply #1026 on: September 03, 2014, 07:12:19 pm »
Mick, the stock box won't work with my Mic's plus it's is way too small for my liking.
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Offline SOHC4 Cafe Racer Fan

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Re: 1977 cb750f2 (915cc) For Sale
« Reply #1027 on: September 03, 2014, 11:39:04 pm »
Ram tubes are nearly universal on modern sportbikes into a large airbox with velocity stacks.  I wonder if some form of ram tube or tubes (perhaps on the sides of the airbox) and a larger box would improve performance.
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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: 1977 cb750f2 (915cc) For Sale
« Reply #1028 on: September 03, 2014, 11:41:44 pm »
Quote from: bwaller on September 03, 2014, 07:12:19 pm
Mick, the stock box won't work with my Mic's plus it's is way too small for my liking.

I have to modify the velocity stack area of the box to make it fit the differing carbs/fuel injection i'm using, but you are correct, they are a very small airbox

Quote from: CB750 Cafe Racer Fan on September 03, 2014, 11:39:04 pm
Ram tubes are nearly universal on modern sportbikes into a large airbox with velocity stacks.  I wonder if some form of ram tube or tubes (perhaps on the sides of the airbox) and a larger box would improve performance.

I thought about going from over the top of the tappet cover, between the carbs down to the filter area of the airbox, trying to keep everything tidy looking or out of sight..... ;)
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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 pn2501

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Re: 1977 cb750f2 (915cc) For Sale
« Reply #1029 on: January 23, 2015, 03:51:39 am »
sorry for necroposting, but amazing amount information in here, i'll be possibly returning to this thread in the future, was sad when the bike was sold though i didn't expect that.

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Offline YogiBear

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Re: 1977 cb750f2 (915cc) For Sale
« Reply #1030 on: December 18, 2015, 10:31:33 am »
Quote from: tweakin on March 14, 2014, 09:41:06 pm




Tweakin, I'm looking at buying a 12" cone engineering muffler for my cb750 (which I believe is what is pictured above) How did you like it on the 915?
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1974 Honda CB750K4        1973 Honda CB500 Four

Offline tweakin

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Re: 1977 cb750f2 (915cc)
« Reply #1031 on: December 18, 2015, 03:32:21 pm »
This was my last and final exhaust set up before she sold.  Cone engineering muffle on a ceramic coated Kerker header and I absolutely loved it.

Quote from: YogiBear on December 18, 2015, 10:31:33 am
Quote from: tweakin on March 14, 2014, 09:41:06 pm




Tweakin, I'm looking at buying a 12" cone engineering muffler for my cb750 (which I believe is what is pictured above) How did you like it on the 915?
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Offline Stev-o

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Re: 1977 cb750f2 (915cc)
« Reply #1032 on: December 18, 2015, 04:24:02 pm »
Quote from: tweakin on December 18, 2015, 03:32:21 pm
This was my last and final exhaust set up before she sold.  Cone engineering muffle on a ceramic coated Kerker header and I absolutely loved it.

Quote from: YogiBear on December 18, 2015, 10:31:33 am
Quote from: tweakin on March 14, 2014, 09:41:06 pm




Tweakin, I'm looking at buying a 12" cone engineering muffler for my cb750 (which I believe is what is pictured above) How did you like it on the 915?

I remember this bike, was BOTY 2014, I wanted this bike!
Another gone, but not forgotten.
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'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline YogiBear

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Re: 1977 cb750f2 (915cc)
« Reply #1033 on: December 18, 2015, 05:05:02 pm »
That's encouraging  :). I remember watching a video with one of your other exhausts, but not the cone muffler. I think I'm going to go for it and buy one. I'll be using a Kerker header as well. Thanks, Tweakin :)
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1974 Honda CB750K4        1973 Honda CB500 Four

Offline tweakin

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Re: 1977 cb750f2 (915cc)
« Reply #1034 on: December 30, 2015, 06:07:34 am »



Got home from vacation to find this at my door step.  Thanks stev-o!
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Offline Stev-o

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Re: 1977 cb750f2 (915cc)
« Reply #1035 on: December 30, 2015, 06:39:32 am »
Congrats! A well deserved win for the 2014 BOTY....
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'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline FunJimmy

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Re: 1977 cb750f2 (915cc)
« Reply #1036 on: December 30, 2015, 08:27:19 am »
Quote from: Stev-o on December 30, 2015, 06:39:32 am
Congrats! A well deserved win for the 2014 BOTY....

Ditto!
Cool trophy.
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You never see a motorcycle parked outside of a psychiatrist's office!

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Offline SOHC4 Cafe Racer Fan

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Re: 1977 cb750f2 (915cc)
« Reply #1037 on: December 31, 2015, 10:02:41 am »
Quote from: tweakin on December 30, 2015, 06:07:34 am



Got home from vacation to find this at my door step.  Thanks stev-o!

Hehe! That's a whole lot of awesomeness! Stev-o has restored balance to the Force!
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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 KenHMT

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Re: 1977 cb750f2 (915cc)
« Reply #1038 on: January 08, 2016, 11:36:20 am »
Ken here from BuildThreads, Inc.

Congrats and nice work tweakin - this build thread was chosen as a Best Build Thread pick for this week.

What this means is that a bunch of guys who like to build stuff (cars, trucks, 4x4s, bikes, cabins, boats, planes, and garages) and have read a ton of build threads, thought that this build thread makes a valuable contribution to online DIY culture.

So, without further ado:



Congrats again and cheers!
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Offline SOHC4 Cafe Racer Fan

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Re: 1977 cb750f2 (915cc)
« Reply #1039 on: January 08, 2016, 11:38:26 am »
Quote from: KenHMT on January 08, 2016, 11:36:20 am
Ken here from BuildThreads, Inc.

Congrats and nice work tweakin - this build thread was chosen as a Best Build Thread pick for this week.

What this means is that a bunch of guys who like to build stuff (cars, trucks, 4x4s, bikes, cabins, boats, planes, and garages) and have read a ton of build threads, thought that this build thread makes a valuable contribution to online DIY culture.

So, without further ado:



Congrats again and cheers!

That's pretty cool.  Now you'll have to check out his other builds.
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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
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