is this normal?

[old school]

my head light broke out i had 200 miles left since it was day time i found no reason to not continue but when i got home my battery was boiled dry and dead 1983gs1100e refilled and carged battery replaced head light and it seems to be fine

[Big T]

Nope - your battery boiled dry due a to voltage regulator problem. Then, the voltage spiked and blew out your headlight.

You need to test your voltage at the battery at idle and about 3k rpm.

You also need to read the Stator Papers

[old school]

my head light and bucket were taken out by a rock but i will check

[focus frenzy]

the charging system was designed around the headlight, the headlight has to work to keep the regulator from being over worked. early and european GS had a switch to turn off the headlight, this switch also cut off one leg from the stator so only two legs were being regulated when the headlight was off.

chances are it was over charging to start with and that is what blew the headlight.

[old school]

so far this is what i have volts across batt at idle 13.8 at 4000 rpm 15.8
pos batt to red wire on r/r .2 now the stator paapers call for the next test to red lead to neg batt black lead to ground on r/r (black w/ white wire) but i dont have this wire i got red ,yellow,white w/red and white w/ blue does this mean that i have a case ground instead? by the way the head light was taken out by rocks pryer to this issue

[focus frenzy]

the stock original ground used on the Suzuki regulator came out of the regulator and went right to one of the regulator mounting screws.

run a wire from the mounting screw to the battery ground terminal.

if the regulator is not grounded good it can not properly regulate output, this is a common problem. 15.8 volts is way to high, and the manual recommendation of a peak of 15.5 volts is also wrong, the absolute max should not go over 14.5 volts and 14.1 volts is ideal.

[old school]

my ground was litterly mellted off at the r/r i would venture to guess that this is a good chunk of my issue now i have to get a new r/r and test again thanks for all the help