No - that's what your regulator/rectifier is for ......
There was a recent reference to this but it didn't really answer the question.
I ride mostly offroad and only during the day.
So, I disconnected the connection to the low beam knowing that if I needed the headlight, I could simply switch on the highbeam.
Will constantly running without the load the headlight places on the system cause any harm to the battery?
Not at all, I've been doing that for years. Now you can ride as slowly as you want with no worries your battery isn't being charged sufficiently. You can even disconnect the blue wires to the front turn signals always on feature for even more savings on juice. (At least they are blue after 2001.)
2014 BMW R1200GS LC
Our experiences indicate that running without the Lo Beam should be OK.
However there has been theoretical discussions on the forum warning of overloading the voltage regulator/rectifier with a sustained 80 plus watt load at higher RPMs. I do not know the rating of our TW's voltage regulators, nor if there is a variation in rating over the years as stator output has changed since 1987.
One of my bikes has a low beam cut-out switch. I will utilize it at times at the very least to lessen draw on the battery when engaging the starter motor in cold weather.
2003 TW200 "Betty Boop"
2006 TW200 "Nibbler", a.k.a. “Mr.Gizmo"
Hidden Content All Things Considered I’ld Rather Be Motorcycling
i have also installed a low beam turn off switch and a volt meter on my bikes. it is surprising how high the voltage is when running with no headlight
2019 honda cb500x
2018 honda grom
2018 suzuki dr200
my headlights are always unplugged I usually unplug the high beam
"It's Like Warm Apple Pie"
2014 Honda CB1100
2018 Yamaha XT250
2016 Moto Guzzi V7 II
2017 Yamaha TW200
2012 Triumph Bonneville
2002 H-D Sportster 1200 Sport
2003 H-D Sportster 883
1976 Honda CB750F
1975 Honda CB360
1970 Yamaha CT1
1972 Yamaha CT2
1972 Yamaha AT2/CT2
1970 Honda SL350
1970 Honda CL350
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1967 Honda CB160
1962 Honda CA110