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Old March 16th, 2020, 09:00 PM   #12
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Carbs are still not clean. I dyno-tested factory airbox, pods and zero filters (with full Tyga race exhaust). Exact same result with 96 mains (+22% more power than stock and still too rich at 11:1 AFR in high-end).
  • Did you use radioactive solvents in ultrasonic cleaner?
  • Floss out all fuel-circuits (not just jets) from beginning to end with scrub-brushes and guitar wire?
  • Follow up with soda-blasting @ 10000psi?

If not carbs aren't factory-fresh clean. Sure limiting air-flow to match clogged fuel-passages will balance out AFR, but that's not same as restoration to factory-fresh condition.

https://www.ninjette.org/forums/showthread.php?t=340561
https://www.ninjette.org/forums/showthread.php?t=339094
https://www.ninjette.org/forums/showthread.php?t=323737
https://www.ninjette.org/forums/showthread.php?t=323452
https://www.ninjette.org/forums/showthread.php?t=322846
https://www.ninjette.org/forums/showthread.php?t=321223
https://www.ninjette.org/forums/showthread.php?t=315193
https://www.ninjette.org/forums/showthread.php?t=317977
https://www.ninjette.org/forums/showpost.php?p=1225710

Quote:
Originally Posted by n4mwd View Post
Here are the secret passages in the carbs. They are kind of hard to figure out sometimes and this picture guide will show where they are for cleaning purposes.

Carb Pilot jet Circuit


Carb Main Jet Circuit


Carb Fuel and Overflow Drain


Carb Diaphragm Intake, upper choke and vacuum ports


Carb Choke Circuit
Also need to separate carbs to get to all nooks & crannies. And disassemble emulsion tube to poke out all bleed-holes with guitar wire of matching size.



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