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Old August 31st, 2021, 05:55 PM   #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

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MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by vani11a View Post
Okay I rewired everything ack to stock/oem specs. I checked the voltage of grey wire before ECU while kill switch off and key ON position. It's reading 10.28V. Then when I hit the starter it drops down to 9.6V....so I checked the battery and 12.4V so needless to say it's now charging. I'm crossing my fingers but if within spec then lets me atleast have a good foundation for further troubleshooting. Thank you DannoXYZ
You're welcome and good job! Yeah charge up battery for 24-hrs on trickle-charger. Should be about 13.5v fresh off charger and 12.6v after resting 24-hrs or so.

Seems grey wire may not be dropping voltage enough. Perhaps replace with 200-ohm resistor or add that 2nd one right after 1st.

Next would be monitoring voltage at fuel-pump connector and seeing if ECU turns on pump when you crank.

If not, we'll want to examine output waveform of flywheel pick-up coil. Sometimes, it may just be corroded connectors or bad wiring along way.
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