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Old October 7th, 2018, 10:48 AM   #22
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
Quote:
Originally Posted by gokartmozart View Post
definitely not carbs, - ultrasonic cleaned 3 times.
Did you completely disassemble carbs down to bare jets?
Did you poke cooper wire of various gauges through all the holes?
Did you floss out all hidden fuel-circuit passages?
Did you soda-blast them afterwards to clean out the debris?
There are guys who can rebuild engines with their teeth and both hands tied behind their backs who've had to pull carbs 4-5 times and do more thorough "cleaning" before their carbs were back to factory fresh condition. Some threads of interest:

https://www.ninjette.org/forums/showthread.php?t=318676
https://www.ninjette.org/forums/showthread.php?t=315193
https://www.ninjette.org/forums/showthread.php?t=316395
https://www.ninjette.org/forums/showthread.php?t=317977
https://www.ninjette.org/forums/showthread.php?t=318271 - don't rule out clogged filters
https://www.ninjette.org/forums/showthread.php?t=317810
https://www.ninjette.org/forums/showthread.php?t=280658
https://www.ninjette.org/forums/show....php?p=1041052 - Ultimate solution to your problems.

Quote:
Originally Posted by gokartmozart View Post
gray wire is at ign switch (needs to be switched on)? BK/Y on igniter--- OK to frame ground ? where should white and brown on reg/rec be connected? G/BK on igniter, (safety switches) OK to frame ground? BR/BK on igniter, 10A fused from ig sw? not sure if my wiring is causing some sort of interference to make ignition intermittent
The fact that you're asking these questions tells me you definitely have wiring problem. Take a look at wiring diagram: https://www.ninjette.org/forums/show...75&postcount=8
Wiring doesn't cause interference, high-voltage does. Is your ignition computer same distance or further away from ignition coils than factory? If not, build Faraday-cage around it to be sure. I've built them around server closets to encapsulating entire buildings to reduce interference.

Also rent, buy, steal an oscilloscope. Will solve your problem in 5-minutes.
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