A mate of mine left the Sport with me as I have Guzzi's and I am an electrician (but not an auto electrician). He's had it to a dealer that did not resolve the issue, which, he says, is not charging correctly.
With the battery discharged to 12V (I must try another battery) at standstill, I then start (just..) the bike and the alternator provides 12.6v to the battery. This is very stable and does not change with engine revs. Voltage at the field terminal and both sides of the headlight relay is 11.1V. (there's 1.5v missing somewhere). I don't know what the charging current is/was. Shut the motor after a short time and battery will be at about 12.4, so the alternator is supplying charge
At the moment I'm confused/uncertain about how the regulator/field voltages actually operate. For example:
How does the regulator/generator output vary with field voltage input? Should it just regulate output to 14.2/14.8 regardless of field input voltage, as long as it is significantly more than 0v field voltage input, and not limit output current?
Or should the regulator limit/link output voltage to field input voltage plus a specified voltage (in this case 1.5V??). In this situation is regulator output limited to 12.6v, 0.6v more than battery voltage, to limit high inrush currents to the battery???
Help with this would be appreciated.
I'll follow up on the missing 1.5v.
Regards, Greg
With the battery discharged to 12V (I must try another battery) at standstill, I then start (just..) the bike and the alternator provides 12.6v to the battery. This is very stable and does not change with engine revs. Voltage at the field terminal and both sides of the headlight relay is 11.1V. (there's 1.5v missing somewhere). I don't know what the charging current is/was. Shut the motor after a short time and battery will be at about 12.4, so the alternator is supplying charge
At the moment I'm confused/uncertain about how the regulator/field voltages actually operate. For example:
How does the regulator/generator output vary with field voltage input? Should it just regulate output to 14.2/14.8 regardless of field input voltage, as long as it is significantly more than 0v field voltage input, and not limit output current?
Or should the regulator limit/link output voltage to field input voltage plus a specified voltage (in this case 1.5V??). In this situation is regulator output limited to 12.6v, 0.6v more than battery voltage, to limit high inrush currents to the battery???
Help with this would be appreciated.
I'll follow up on the missing 1.5v.
Regards, Greg