16-11-14, 04:45 PM
In reply to some of you questions
Yes you can check the alternator in a no load condition, but be extremely careful for the reasons fazerrider has stated.
To do this, ensure you have a fully charged battery.
Disconnect the regulator/rectifier and then start the bike
Check the AC voltage on all three phases (white wires). All three phases should be around 20V AC and it should climb to as you rev the engine and as fazerrider states don't rev it over 5000.
If all three phase rise and fall (within a few volts of each other with the engine revs then the alternator is is doing what it is supposed to be.
In my case the regulator was causing slight over charging occasionally and may have caused the CDI to drop out due to over voltage protection.
Yes you can check the alternator in a no load condition, but be extremely careful for the reasons fazerrider has stated.
To do this, ensure you have a fully charged battery.
Disconnect the regulator/rectifier and then start the bike
Check the AC voltage on all three phases (white wires). All three phases should be around 20V AC and it should climb to as you rev the engine and as fazerrider states don't rev it over 5000.
If all three phase rise and fall (within a few volts of each other with the engine revs then the alternator is is doing what it is supposed to be.
In my case the regulator was causing slight over charging occasionally and may have caused the CDI to drop out due to over voltage protection.