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Old 05-08-2020, 06:53 AM   #1
01ls1ws6
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Charging issue question

My 2009 r6 has thrown code 46 AKA the rossi code lol. I borrowed a multimeter but i'm not very experienced with it to be honest. I tried measuring the resistance and if I'm reading it right then the stator is fine. The bike starts and runs fine, i only get the code when accelerating then the check engine light goes away under 2500 rpm. when i check the voltage at idle its somewhat normal, however when i rev it to 5k it goes up over 15 to 16 volts. So I'm assuming it's the rectifier/regulator? Also my headlights turn off as soon as the check engine light comes on. So am i correct that its getting to much voltage, throwing the code, and shutting off the headlights?? Once i'm under 2500rpm the light goes away and my headlights come back on.
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Old 05-08-2020, 07:46 AM   #2
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Yes. The rectifier regulator is toast. Check for a burned connector between the stator and the rr. Key off. Battery should read 12.65 minimum. Running you should see 13.6 to 14.7 max.
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Old 05-08-2020, 08:03 AM   #3
01ls1ws6
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I checked the connectors and wires and they all looked immaculate surprisingly. Weird thing is i rode it around without the fairings late last night and no check engine light came on. It was late and i was tired so i didn't re check the voltage at RPM. I'll just grab a new RR to be safe. Any suggestions on where to buy one or what brand? Should i just go back factory or aftermarket?
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Old 05-08-2020, 01:06 PM   #4
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I have no clue what brand to buy. Might want to jump on a Yamaha forum and see what everyone is using. Time to add a voltage gauge as well.
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