Training Wheel Hero
Join Date: Jul 2017
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Issues with charging and bike dying
I recently picked up a CBR600RR 2005, which was in good condition with 17000kms on it. The first owner had owned it for the first 15000 and taken gentle care of it. The second owner I suspect didn't take enough care of it.
However, when I checked it out it was in good shape, behaved really well and I didn't have any issues at all. Took it home, rode it the very short distance I have to work for a few days, before I took it for a longer run. It started acting up after twenty minutes or so, started out running bad on low rev, power coming and going and overall jerky acceleration. After a few more minutes it died on low rev, which made me suspect that the battery wasn't getting charged.
I made my way home (had to walk it the last couple of hundred meters) and charged the battery, to try to find the issue. Surprisingly, it DID charge - somewhat. At 5k/7k/9k it charged between 13.1 and 13.28. At idle the voltage dropped from 12.44~ to 12.08~.
Very odd. I took it out to another trip, exactly the same thing as last time. This time it almost caused some major issue though, as the power went out during revving through a corner...
I made my way home, and measured it again. This time I revved it to 7k and held it.
It charged 13.22 - however, the voltage dropped to 5.5 and then 0 within a second, and the bike died. After it died it went up to 12.0.
However, it should never die during 7k RPM as it's charging.
Could it be the rectifier, or the alternator?
Thanks in advance.