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Author Topic: CB125s "Big Blue" is UN-DONE!  (Read 57701 times)

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Offline Flying J

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Re: CB125s "Big Blue" is DONE!
« Reply #175 on: March 18, 2013, 03:10:11 PM »
man if that would fit....this bike would be scary fun to ride
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Offline Retro Rocket

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Re: CB125s "Big Blue" is DONE!
« Reply #176 on: March 18, 2013, 04:01:41 PM »
Quote from: ffJMoore on March 18, 2013, 03:10:11 PM
man if that would fit....this bike would be scary fun to ride

Anything can be made to fit.... ;D ;)
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Offline RAFster122s

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Re: CB125s "Big Blue" is DONE!
« Reply #177 on: March 18, 2013, 04:02:19 PM »
Quote from: ffJMoore on March 18, 2013, 03:10:11 PM
man if that would fit....this bike would be scary fun to ride

Until you needed to turn or brake...
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Offline Retro Rocket

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Re: CB125s "Big Blue" is DONE!
« Reply #178 on: March 18, 2013, 04:04:10 PM »
Quote from: RAFster122S on March 18, 2013, 04:02:19 PM
Quote from: ffJMoore on March 18, 2013, 03:10:11 PM
man if that would fit....this bike would be scary fun to ride

Until you needed to turn or brake...

It would turn, but brakes would be an entirely different thing, those brakes anyway.... :o
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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 Flying J

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Re: CB125s "Big Blue" is DONE!
« Reply #179 on: March 19, 2013, 04:40:28 PM »
I have a 3mm over bore piston for this bike that i want to use but i dont have a head gasket for it. Anybody know where to get one?
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Offline Flying J

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Re: CB125s "Big Blue" is DONE!
« Reply #180 on: March 23, 2013, 04:58:37 PM »
Found a oversized gasket after talking with the people at cometic. Ill order a new one on monday. Did some painting and had the valves done.


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Offline RAFster122s

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Re: CB125s "Big Blue" is DONE!
« Reply #181 on: March 23, 2013, 05:58:18 PM »
Is that another head? Or how are you going to salvage that one with cam and journals chewed up?
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Offline Flying J

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Re: CB125s "Big Blue" is DONE!
« Reply #182 on: March 23, 2013, 08:52:29 PM »
I found this one local. Had to buy a whole parts motor to get it. Now i have enough parts to build a second engine minus the head and cam.
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Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #183 on: April 11, 2013, 11:17:32 PM »
Cylinder should be done tomorrow. Going big bore up from a 122 to a 135. New cam chain and guides.
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Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #184 on: April 23, 2013, 10:37:08 AM »
Just for my own records the carb is set up with a 110 main, 38 pilot and the needle moved up 1 notch. I could not get the thing to run on the idle circuit despite  my best attemps at cleaning the carb so swapped everything onto a different body and the bike runs great now. Still a little sputter a WOT.
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Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #185 on: April 23, 2013, 02:47:09 PM »
Back on the market if anybody is intersted
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Offline hoodellyhoo

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #186 on: April 23, 2013, 07:41:02 PM »
Are you sure you aren't destined to be the permanent owner of this bike?  ;D
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Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #187 on: April 23, 2013, 09:40:59 PM »
I sure hope not.
 :o
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Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #188 on: April 26, 2013, 10:06:19 AM »
105 main,38 pilot and needle moved up one. WOT sputter is gone. idle mixture screw is in pretty far so i thin i could drop down one pilot but its running good right now.
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Offline grcamna2

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Re: CB125s "Big Blue" is DONE!
« Reply #189 on: May 07, 2013, 02:21:42 PM »
Quote from: Retro Rocket on March 18, 2013, 02:22:33 PM
Quote from: ffJMoore on March 18, 2013, 07:38:06 AM
Just a good head and cam is all I need.

How about a whole XR350 engine.... ;D

ff,
Have you ever considered doing More work on the motor ?
 such as a stroker crank ?? I like the idea of more power in that  200 lb. cycle ! I once bought an SL125 motor & put it into my CB100 ! I installed a Powroll 135cc piston kit along w/ a 10cc stroker crank kit & a mild Powroll street camshaft which made it a Honda 145.I was very happy(at 19 yrs.old)w/ the difference in power !
« Last Edit: May 07, 2013, 02:28:37 PM by grcamna2 »
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #190 on: May 07, 2013, 05:08:54 PM »
Powroll has disappeared. I did look at some of their stuff but to bring it up to a like 150 or so was over $1000. It would be much easier to drop in a Honda 185 motor. They fit with a small modification to the frame. Friend of mine was building one. Had the motor mocked up in the frame but lost interest and sold all the parts.
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Offline grcamna2

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #191 on: May 08, 2013, 01:35:05 PM »
Quote from: Flying J aka ffJMoore on May 07, 2013, 05:08:54 PM
Powroll has disappeared. I did look at some of their stuff but to bring it up to a like 150 or so was over $1000. It would be much easier to drop in a Honda 185 motor. They fit with a small modification to the frame. Friend of mine was building one. Had the motor mocked up in the frame but lost interest and sold all the parts.


That's too bad about Powroll..;I liked there way of getting more power out of little Honda singles. I'm interested in swapping a 185 motor into a CB125S..,do you know anything about what kind of mods are necessary ? I wonder how much you can bore an XL185 out ? or an XR200 possibly ?? I heard about the 185 swap from a member here about a year ago,I think it was from member Kirkn...
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline robotman

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #192 on: May 09, 2013, 03:04:15 AM »
What size are the tires?
Could you get bigger ones to fit in the swing arm gap or are you at the max?
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Offline grcamna2

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #193 on: May 11, 2013, 12:01:57 PM »
bump  :)
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #194 on: May 11, 2013, 02:33:02 PM »
Quote from: robotman on May 09, 2013, 03:04:15 AM
What size are the tires?
Could you get bigger ones to fit in the swing arm gap or are you at the max?

Im sure you could fit wider tires but why would you? to make the bike slower?
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Offline Retro Rocket

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #195 on: May 11, 2013, 02:36:18 PM »
 ;D ;D    sorry FFJ, couldn't help it... ;)


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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 Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #196 on: May 11, 2013, 03:01:12 PM »
Right, it can be done but he did a little more then go on a forum and ask if he could fit a wider tire.  :D
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Offline Retro Rocket

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #197 on: May 11, 2013, 03:41:40 PM »
Quote from: Flying J aka ffJMoore on May 11, 2013, 03:01:12 PM
Right, it can be done but he did a little more then go on a forum and ask if he could fit a wider tire.  :D

 ;D ;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 grcamna2

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #198 on: May 21, 2013, 02:21:31 PM »
ffJ,
     Where did you purchase your 3mm over piston ? Does it come in small oversizes after the initial 3mm ? or is it just the 3mm only ?
I want to purchase this CB125S and was considering a bit more displacement.They're a Nice bike  :)
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Flying J

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Re: CB125s "Big Blue" is UN-DONE!
« Reply #199 on: May 21, 2013, 04:58:02 PM »
Bought it on eBay. 3mm only. It's old stock.
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