Hi.. Just a quick question.. lads and ladettes.. Having charging issues on my kawasaki zzr600D (92). I replaced th R/R from a wrecker as the last one was burned (had it tested and it was history), but the battery still was not charging, output of 12.3 V @ 4-5000 revs. So i opened it up, and the alternator had a few blackened, burned windings. Replaced it with another one originally destined for a Yamaha SRX250, that fits, similar plug, etc., also from a wrecker for my other bike... Turned it on, no headlight.](*,) checked voltage, battery fully charged, and got 12.7, but no variations. Disconnected the alternator, no voltage change. There is NO voltage reading across the terminlas of the headlight socket (plug). I did swap bulbs just in case, tried four, for the same reason. All the other lights, horn and indicators work... After leaving running for a few mins, voltage started dropping, slightly. Disconnected battery, bike STOPS. Now, do bikes run similarly to cars, as in if I disconnect a cars battery while its running if the engine shouldn't stop, as the bike produces its own power???