Basic Electrical System Loading
Headlamp (assume 80/100 low beam) 80w
Instrument lamps (5 x 3.4w) 17w
Running lamps (2 x 8w) 16w
Tail lamps (2 x 8w) 16w
License plate lamp (1 x 8w) 8w
Ignition/misc. 21w
_______
Semi-Stock Total 158w
"The above total is the absolute minimum the bike
will use when running in semi-stock trim (80/100w
bulb added).
Add the 2 55w Aux lamps 110w
_______
New Total 268w
"The above figures haven't allowed for intermittent
loading caused by the:
Stop lamps (2 x 27w) 54w
Cooling fan (4A x 12V = 48w) 48w
Electric vest (2 x 45) 90w
Turn signals,(2 x 23w + 3.4w) 49.4w
Neutral lamp 3.4w
High beam (20w + 3.4w) 23.4w
_______
Total 268.2w
Add Total from above 268w
________
Potential load on system 536.2w
"The Service manual lists the output of the alternator
as 28.6A @ 14 volts @ 6000 RPM. This equates to a
calculated output of 400.4 watts. But I gotta ask, "Who
rides around at 6000 RPM all the time?" Realistically,
I'd estimate the real-world output of the alternator at
300 watts, maybe 350 max.
Guy