« previous next »
Pages: [1]   Go Down

Author Topic: 400/4 F1 Cafe Racer Project - New Exhaust System  (Read 1986 times)

0 Members and 1 Guest are viewing this topic.

Offline robnobrakes

  • Full Member
  • *
  • Posts: 81
400/4 F1 Cafe Racer Project - New Exhaust System
« on: September 13, 2014, 05:39:52 PM »
Mizuno Motor (copycat Yoshi) Short Exhaust System now fitted to my '77 CB400/4, replacing a 1970s Yoshimura 'Long' system.






Removed Yoshi Long system

Logged
Rob

'77 CB400F1 Cafe Project, '94 Ducati 900SS, '94 Speed Triple T309, '95 Daytona Super III, '98 Triumph Tiger 900,

Offline Blackfin5

  • Hot Shot
  • ***
  • Posts: 573
Re: 400/4 F1 Cafe Racer Project - New Exhaust System
« Reply #1 on: September 13, 2014, 07:19:50 PM »
Very nice.  I love the 400/4 F and what you've done with it.  Reminds me of the old Lotus racing colors - except not as mustardy a yellow.

One day I want to cafe a Triton in Lotus racing colors.
« Last Edit: September 13, 2014, 07:49:51 PM by Blackfin5 »
Logged

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,556
  • SOHC/4 Member #1235
Re: 400/4 F1 Cafe Racer Project - New Exhaust System
« Reply #2 on: September 13, 2014, 09:51:01 PM »
I like the smooth bend Yosh replica 4-1 you just installed.  Not so sure about the saw blade brake rotor.
Logged
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 robnobrakes

  • Full Member
  • *
  • Posts: 81
Re: 400/4 F1 Cafe Racer Project - New Exhaust System
« Reply #3 on: September 13, 2014, 10:30:42 PM »
Quote from: Blackfin5 on September 13, 2014, 07:19:50 PM
Very nice.  I love the 400/4 F and what you've done with it.  Reminds me of the old Lotus racing colors - except not as mustardy a yellow.

One day I want to cafe a Triton in Lotus racing colors.

Actually, the bike is painted in authentic Team Lotus Formula 1 racing colours from 1966/67, as raced by the great Jim Clark.  I obtained the correct paint codes.
Logged
Rob

'77 CB400F1 Cafe Project, '94 Ducati 900SS, '94 Speed Triple T309, '95 Daytona Super III, '98 Triumph Tiger 900,

Offline robnobrakes

  • Full Member
  • *
  • Posts: 81
Re: 400/4 F1 Cafe Racer Project - New Exhaust System
« Reply #4 on: September 13, 2014, 10:33:57 PM »
Quote from: calj737 on September 13, 2014, 06:19:41 PM
I'm with you, that new pipe looks much better on that bike. Some info on the front rotor?

Home modified.  I can't say it improves brake performance by much, but is certainly a talking point.  A have a stock disc to replace it should I feel the need.
Logged
Rob

'77 CB400F1 Cafe Project, '94 Ducati 900SS, '94 Speed Triple T309, '95 Daytona Super III, '98 Triumph Tiger 900,

Offline Blackfin5

  • Hot Shot
  • ***
  • Posts: 573
Re: 400/4 F1 Cafe Racer Project - New Exhaust System
« Reply #5 on: September 14, 2014, 07:27:04 AM »
Correct codes from the 60s for Lotus??  Very cooool!
Logged

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,556
  • SOHC/4 Member #1235
Re: 400/4 F1 Cafe Racer Project - New Exhaust System
« Reply #6 on: September 14, 2014, 08:28:58 AM »
Quote from: calj737 on September 14, 2014, 04:18:34 AM
Quote from: robnobrakes on September 13, 2014, 10:33:57 PM
Home modified.  I can't say it improves brake performance by much, but is certainly a talking point.
Adventurous! I would almost think it would degrade braking since less surface area is in constant contact with the pads. I was going to ask, do you find it chirping or shuddering under heavy pressure?

Either way, kudos for a clever "talking point"  ;)

I would think the rotor might go through pads faster than slotted discs (cheese grater effect).  That is a bit more extreme than petal/wave rotors.  Cal brings up a good question/concern about chatter/shuddering.  Of course, it may work just fine.  Let us know.
Logged
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 robnobrakes

  • Full Member
  • *
  • Posts: 81
Re: 400/4 F1 Cafe Racer Project - New Exhaust System
« Reply #7 on: September 14, 2014, 11:04:48 AM »
Quote from: CB750 Cafe Racer Fan on September 14, 2014, 08:28:58 AM
Quote from: calj737 on September 14, 2014, 04:18:34 AM
Quote from: robnobrakes on September 13, 2014, 10:33:57 PM
Home modified.  I can't say it improves brake performance by much, but is certainly a talking point.
Adventurous! I would almost think it would degrade braking since less surface area is in constant contact with the pads. I was going to ask, do you find it chirping or shuddering under heavy pressure?

Either way, kudos for a clever "talking point"  ;)

I would think the rotor might go through pads faster than slotted discs (cheese grater effect).  That is a bit more extreme than petal/wave rotors.  Cal brings up a good question/concern about chatter/shuddering.  Of course, it may work just fine.  Let us know.

No chirping or juddering. The brake feels normal.   Pad wear may be reduced, only time will tell.
Logged
Rob

'77 CB400F1 Cafe Project, '94 Ducati 900SS, '94 Speed Triple T309, '95 Daytona Super III, '98 Triumph Tiger 900,
Pages: [1]   Go Up
« previous next »