LED Headlight and Series Regulator Replacement

ruenjou1

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Joined
Oct 23, 2017
Messages
37
Location
CA
It was rainy last weekend so it's time to do an electrical project:

1. Replacing headlight bulbs to LED bulbs
This requires the extended light bulb caps since the LED bulbs have a built-in fan that extends ~1" out to the back. Bought a pair from deftoner and they work perfectly.

2. Replacing the stock shunt regulator with a series regulator
There were reports in BMW and V Strom forums that their stators got burnt due to the stock shunt regulators and the solution was to replace it with a series regulator. I couldn't find any super tenere having such failures but a series regulator will reduce stator load/temperature and probably gain 1 horse power back to the rear wheel. The left one in the photo is the stock shunt regulator (Shindengen FH020AA) while the right side (SH775BA) is the series one. It's a drop-in replacement. Current rating is 50A (stock) vs 35A (series) and thus I replaced headlight with LED bulbs. Shindengen SH847 is a 50A series regulator but its too big to be plug and play.

A quick road test showed the stator cover temperature dropped from 140 deg F to 135. I honestly didn't feel the extra horse power gained but it must be there, LOL
 

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ruenjou1

Member
Joined
Oct 23, 2017
Messages
37
Location
CA
Not a scientific method, but I measured the temperature of the stator cover after a sustain highway run against my buddy's Africa Twin. Mine was ~150 deg F while his was 170 deg F.
 
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