Thread: Fueling help
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Old July 11th, 2022, 01:48 AM   #33
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

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MOTY - 2018, MOTM - Nov '17
Did you scrub out secret hidden passages?
http://n4mwd.blogspot.com/2013/10/se...-passages.html

Poke out all bleed holes with soft copper wire (especially ones in carb venturi)?
Ultrasonic soak is only to clean up chads and scruff left over from these processes.
Micro soda-blast everything?

ultrasonic does very little without these other steps
You'll also need to replace all rubbers: Fuel-rail O-rings, pilot-screw O-rings, float valves, float bowl seals.
Then adjust float-level with wet-test

ultrasonic is just 1st 5% of getting these carbs working...
Many experts who know these bikes like back of their hands have had to pull carbs 4-5x for ever deeper cleaning before they got them factory-fresh clean. One guy had to pull his carbs 10x!!!

http://n4mwd.blogspot.com/2013/10/se...-passages.html

Last futzed with by DannoXYZ; July 16th, 2022 at 08:51 PM.
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