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SU Guru needed. B20 Lean Stumble 120-130

posted by Ron Kwas on Tue Mar 6 13:13 CST 2018
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last visit: Fri Oct 24 04:03 CST 2014

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Tracy;

Where did these carbs come from? Are they really SU clones? How are they configured...most importantly: What Metering Needles?, and are they correctly installed...what is jet position unchoked? Is FuPu able to keep up with demand at Revs/Load. Are Bowlvalves set correctly?

If your WBO2 meter is indicating very lean, can you enrichen to compensate by lowering Jets (pulling Choke)?

No oil would result in exacerbating lean stubble on fast Throttle opening...oil should be 20W or ATF.

"needles drop as they should" ...needles don't drop...Dashpots, into which MN are installed rise and fall...not to pick your info (on which I do compliment you for being as complete as you could be) apart, please use standardized terminology, so that everybody is talking about the same thing...

Have you seen these videos and you you understand them?:
SU Part 1. https://www.youtube.com/watch?v=7GRAcqDySog
SU Part 2. https://www.youtube.com/watch?v=60Bj_2cZQnc

Good Hunting?

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SU Guru needed. B20 Lean Stumble [120-130]
posted by TR Conn subscriber on Tue Mar 6 01:19 CST 2018 >

SU Guru needed. B20 Lean Stumble [120-130]
posted by derek uk subscriber on Tue Mar 6 06:43 CST 2018 > V
- SU Guru needed. B20 Lean Stumble [120-130]
  posted by TR Conn subscriber on Wed Mar 7 22:09 CST 2018 > V
  - SU Guru needed. B20 Lean Stumble [120-130]
    posted by Ron Kwas on Thu Mar 8 10:41 CST 2018 > V
    - SU Guru needed. B20 Lean Stumble [120-130]
      posted by TR Conn subscriber on Sun Mar 11 20:42 CST 2018 > V
      - SU Guru needed. B20 Lean Stumble [120-130]
        posted by Ron Kwas on Mon Mar 12 05:51 CST 2018 > V
        
        SU Guru needed. B20 Lean Stumble [120-130]
        posted by TR Conn subscriber on Mon Mar 12 21:34 CST 2018 > V
        
        SU Guru needed. B20 Lean Stumble [120-130]
        posted by Ron Kwas on Tue Mar 13 04:40 CST 2018 > V
      - SU Guru needed. B20 Lean Stumble [120-130]
        posted by derek uk subscriber on Mon Mar 12 06:06 CST 2018 > V

SU Guru needed. B20 Lean Stumble [120-130]
posted by Ron Kwas on Tue Mar 6 13:13 CST 2018 > V
- SU Guru needed. B20 Lean Stumble [120-130]
  posted by TR Conn subscriber on Tue Mar 6 19:15 CST 2018 > V
  - SU Guru needed. B20 Lean Stumble [120-130]
    posted by B20Paul. subscriber on Wed Mar 7 14:49 CST 2018 > V

Cracked Exhaust Manifold [120-130]
posted by TR Conn subscriber on Wed Mar 28 23:46 CST 2018 > V
- Cracked Exhaust Manifold [120-130]
  posted by uncle_bagley subscriber on Sat Mar 31 09:54 CST 2018 > V
- Cracked Exhaust Manifold [120-130]
  posted by TR Conn subscriber on Sat Mar 31 15:31 CST 2018 > V
  - Cracked Exhaust Manifold [120-130]
    posted by Ron Kwas on Sun Apr 1 07:22 CST 2018 > V
    - Cracked Exhaust Manifold [120-130]
      posted by TR Conn subscriber on Mon Apr 2 11:49 CST 2018 > V
      - Cracked Exhaust Manifold [120-130]
        posted by Ron Kwas on Tue Apr 17 08:55 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by B20Paul. subscriber on Tue Apr 17 16:07 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by Ron Kwas on Tue Apr 17 18:45 CST 2018 > V
        
        Cracked Exhaust Manifold (additional) [120-130]
        posted by Ron Kwas on Wed Apr 18 03:47 CST 2018 > V
        
        A very basic view of intake and exhaust design on a B20. [120-130]
        posted by B20Paul. subscriber on Wed Apr 18 13:40 CST 2018 > V
        
        A very basic view of intake and exhaust design on a B20. [120-130]
        posted by Ron Kwas on Thu Apr 19 07:02 CST 2018 > V
        
        A very basic view of intake and exhaust design on a B20. [120-130]
        posted by B20Paul. subscriber on Wed May 2 21:55 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by B20Paul. subscriber on Wed May 2 21:12 CST 2018 > V
        
        Cracked Exhaust Manifold [120-130]
        posted by TR Conn subscriber on Thu May 3 16:28 CST 2018 > V
  - Cracked Exhaust Manifold [120-130]
    posted by TR Conn subscriber on Mon Apr 2 11:33 CST 2018 > V

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Volvo RWD 120-130 Forum

SU Guru needed. B20 Lean Stumble 120-130