Originally Posted by punchy
also, is the small parking light in the headlight supposed to be on whilst the
main beam is operated...whilst revving the engine the headlight just stays at the same brightness..ive checked all the wiring and found ok..all connections are clean and tight...
Lights getting brighter just show that the generator is working....
Set the multimetre to VOLTS. Range 0-20v
Put the black probe to the battery EARTH and the red probe to battery LIVE.
With the bike NOT running the voltage should be 12.5 or higher for a healthy battery.
Now with the bike RUNNING, the voltage should go up to about 14.5 or something similar.
Rev the engine up and the voltage should climb no higher than about 14.5. That shows that the voltage is being "regulated".
2001 NX650 Dominator.
EX - BMW Dealer Technician