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Old February 28th, 2021, 10:48 PM   #38
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 Edge Genesis View Post
Safari, I’m not all that sure that it would be the solenoid wires. As two of the bikes I’ve been working on have the same problem. No ignition, engine will crank, just no spark
So you've tested for spark by grounding spark-plug case to engine and cranking?

1. Might be resistor issue. With switch/key ON, measure voltage by back-probing grey-wire terminal at iC-ignitor connector (plugged in). If you have 10v or less going into IC-ignitor, then security-feature is working. If not, you may want to use 150-200ohm resistor until voltage is less than 10v. Provided of course your ignitors are 1995+.

2. With switch/key ON, measure voltage at each primary-terminal of both ignition coils (4 readings). Volts = ???

3. Measure resistance of crank pickup-coil. Ohms = ??? Ignitor won't trigger coil to spark if it's not seeing crank spin.
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