Author Topic: Classic Bonneville Racer  (Read 39466 times)

0 Members and 1 Guest are viewing this topic.

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #500 on: September 11, 2018, 09:08:43 pm »
Jerry Wins...............According to the BMST records listing, we DID SET 4 RECORDS this year. Somehow I was able to get a tenth of a MPH ahead of the 2017 M-CG record set by the Triumph Trident at 136.62-mph

http://www.dragbike.com/bonneville-motorcycle-speed-trial-2018/
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #501 on: September 13, 2018, 04:39:33 pm »
Motor Report:

Complete tear down shows the very beginning of wear on #2 Rod Bearing (about .001")  Because the motor is at very close tolerances, we see piston to head RUBS at the edges of the chambers but no damage to the piston edges. The early editions of the Cycle-X cam and primary-chain tensioners show some wear with resultant 'chaff' in the oil sump and filter. The OEM primary chains are worn and will be replaced. The rods may have stretched a few thou so will be replaced along with new bearings. The .042 Copper head gasket now measures .040 so will be replaced along with new 0-rings. One cylinder-sleeve has a curious horizontal 'groove' about at the position of the top-ring at the bottom of the stroke. Otherwise, no other noticeable wear or damage was noticed. The bottoms of the pistons look like new. Parts will be sourced and the motor will be assembled next June for another trip to Bonneville in 2019
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline MCRider

  • Such is the life of a
  • Really Old Timer ...
  • *******
  • Posts: 14,217
  • Today's Lesson: One good turn deserves another.
Re: Classic Bonneville Racer
« Reply #502 on: September 27, 2018, 10:51:27 am »
I haven't been able to follow this thread in detail, but suffice it to say, it is super cool. Keep on!   ;D
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #503 on: October 01, 2018, 07:01:22 am »
Thanks, Ron...............New Millennium bore of another set of jugs is already waiting for assembly.........Ken at Cycle X is getting the rest of the needed parts together for assembly next May-June when I return to Wisconsin. Any suggestions?
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline MCRider

  • Such is the life of a
  • Really Old Timer ...
  • *******
  • Posts: 14,217
  • Today's Lesson: One good turn deserves another.
Re: Classic Bonneville Racer
« Reply #504 on: October 01, 2018, 07:19:48 am »
Thanks, Ron...............New Millennium bore of another set of jugs is already waiting for assembly.........Ken at Cycle X is getting the rest of the needed parts together for assembly next May-June when I return to Wisconsin. Any suggestions?

Me? Thanks but I'm so far out of the loop, I just look at the pretty pictures.   :D
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #505 on: October 08, 2018, 06:54:29 am »
Stopped at the Mikuni booth while visiting the Barber Vintage Motorcycle Festival..........2 techs gave me SUDCO access for half-sizes of jets AND asked me why I did not add a bottle of NOS when they heard about my ram-air system. They claim I could simply spray with one nozzle into my air-chamber immediately after the filter........mixture would be uniform to each carb. Advice was to use jets at the upper-end of suitable size.

I could try the NOS in the Fuel Classes only...........tempting..........any advice???
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline 754

  • Really Old Timer ...
  • *******
  • Posts: 25,386
Re: Classic Bonneville Racer
« Reply #506 on: October 08, 2018, 08:38:13 am »
Yeah .....get 2 barrels and piston sets ready..
Pm me an address, got pics for you from Miller in 09, the year you got hooked on Salt..
I sent them to  (Dennis W , roaming the country in a motorhome..)..?.but they came back..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 13,476
  • Bought her new 4/75
Re: Classic Bonneville Racer
« Reply #507 on: October 08, 2018, 09:16:23 am »
Advice?? Me??  ;D :o

If NOS you'll totally blow away the Trident BUT maybe your rods too. That should be an expensive upgrade but hey, they will be lighter if you go Carrillos……. Will a bottle last the entire measured mile? That'd be 24 seconds at 150 or 20 seconds at 175  8) ;)

Save the bottle for the last runs after you set all the other records...…..
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #508 on: October 08, 2018, 11:57:43 am »
Already have one set of barrels and pistons as spares............was advised to use a single nozzle for modest amount of intermittent spray beginning about 2 seconds before hitting the measured mile and ending about midway through unless I don't plan on making another run ;D ;D ;D
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline gschuld

  • Master
  • *****
  • Posts: 1,701
Re: Classic Bonneville Racer
« Reply #509 on: October 13, 2018, 06:24:03 pm »
Off subject, but what’s the deal with these tires?  They look to be either small dragster front runners shaved with a healthy flat area or are old LSR motorcycle tires.

Any idea?

George

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #510 on: October 14, 2018, 08:35:48 am »
More like new Micky Thompson Front Runners on 17-inch Astro-Lites?...........I think they are speed-rated at 200-mph or higher. I've been looking at them for my bike......especially on the front to get lower.
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline gschuld

  • Master
  • *****
  • Posts: 1,701
Re: Classic Bonneville Racer
« Reply #511 on: October 14, 2018, 12:47:51 pm »
I think you are right👍  👏

George
« Last Edit: October 14, 2018, 12:51:01 pm by gschuld »

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #512 on: October 17, 2018, 07:05:38 pm »
Finally down-sized a few pics of some of the chassis alteration work.........

Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #513 on: October 17, 2018, 07:08:10 pm »
The extended swingarm.........

Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #514 on: October 17, 2018, 07:12:50 pm »
The new seat-tail section............those are SS rivets.........and that's Dave Murre at the English Wheel
« Last Edit: October 18, 2018, 08:20:50 am by Old Scrambler »
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline scottly

  • Really Old Timer ...
  • *******
  • Posts: 12,303
  • Humboldt, AZ
Re: Classic Bonneville Racer
« Reply #515 on: October 17, 2018, 07:50:49 pm »
Cool pics, Dennis!  8)
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline RAF122S

  • I feel like a
  • Really Old Timer ...
  • *******
  • Posts: 6,518
  • SOHC 4 member # 2605
Re: Classic Bonneville Racer
« Reply #516 on: October 17, 2018, 08:53:49 pm »
Stopped at the Mikuni booth while visiting the Barber Vintage Motorcycle Festival..........2 techs gave me SUDCO access for half-sizes of jets AND asked me why I did not add a bottle of NOS when they heard about my ram-air system. They claim I could simply spray with one nozzle into my air-chamber immediately after the filter........mixture would be uniform to each carb. Advice was to use jets at the upper-end of suitable size.

I could try the NOS in the Fuel Classes only...........tempting..........any advice???


Talk to dragracer, Frank, as he runs NOS in the 1/4 mile and he could give you insight on things to not do so you are not blowing up the motor in one pass.


Good luck with all that fun work you have underway!
David
David stuck in the curvy back roads of "Upper East" TN

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #517 on: October 19, 2018, 04:20:46 pm »
A few more 'book-keeping' pics of bike; salt-flats pit-row; and crew..........

Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #518 on: October 20, 2018, 11:24:03 am »
Searched through my camera and found a few more pics related to the 2018 Bonneville experience..........

Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline gschuld

  • Master
  • *****
  • Posts: 1,701
Re: Classic Bonneville Racer
« Reply #519 on: October 20, 2018, 02:18:29 pm »
Thx for the pics.

So you drove down in that van and pulled that trailer with the bike on it or do you only use that trailer on the salt?

George

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #520 on: October 20, 2018, 04:47:10 pm »
The little trailer is only used on the salt and travels inside of my enclosed trailer with a lot of gear packed on it.
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline gschuld

  • Master
  • *****
  • Posts: 1,701
Re: Classic Bonneville Racer
« Reply #521 on: October 21, 2018, 06:20:17 am »
I figured as much. No worries about that trailer on the salt.😉

George

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,221
Re: Classic Bonneville Racer
« Reply #522 on: October 21, 2018, 07:01:22 am »
It's borrowed from Dave Murre who insists I carry a spare wheel ;)..........otherwise it sits outdoors at his salvage yard and sleeps under the snow or tall grass.
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2000 Aprilia Pegaso

Offline gschuld

  • Master
  • *****
  • Posts: 1,701
Re: Classic Bonneville Racer
« Reply #523 on: October 21, 2018, 07:57:32 am »
Nice...  I’m curious, is there a speed limit for support vehicles out there?  Or just in the pits?

I understand it is 55mph on the access road at Speed Week anyway. Same for BMST?

George
« Last Edit: October 21, 2018, 09:09:51 am by gschuld »

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 13,476
  • Bought her new 4/75
Re: Classic Bonneville Racer
« Reply #524 on: October 22, 2018, 08:16:37 am »
Shhhhhh George! You'll get me busted  ;D
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

 

;