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Old February 28th, 2021, 11:22 AM   #28
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
When measuring voltage at starter-solenoid terminal B, if you don't have voltage, stop, you've found problem: B and M connections are reversed.

1. Disconnect battery +positive cable
2. Disconnect cable at B terminal
3. Disconnect cable at M terminal
4. Don't let go of it and immediately attach to B terminal
5. Attach remaining cable to M terminal
6. Connect battery +positive cable

Go back and repeat tests from step #1 above.

Here's similar case where guy refused to believe that his cables were on solenoid backwards: https://www.ninjette.org/forums/showthread.php?t=345904

Thing to note is that terminals B and M at starter-solenoid are not identical and interchangeable. Just because you can connect them with needle-nose pliers and get starter-motor to run, does not mean you can connect them any which way. Battery +positive cable must be attached to B-terminal. Starter-motor must be connected to M-terminal. There's absolutely zero way around this with any other configuration that'll work. That's because it's B-terminal that sends power through 30-amp main-fuse to ignition-switch, which then powers rest of bike: lights, ignition-coils, IC-ignition, start-button, starter-relay, starter-solenoid, starter-motor.

Last futzed with by DannoXYZ; February 28th, 2021 at 04:43 PM.
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