Good headlight aiming instructions!
However . . . KLR650 Generation 1 and KLR250 (OP's bike) don't pack a lot of candlepower, stock, even when perfectly aimed.
The TPI bulb is H4 incandescent, and draws more juice than the stock item; a KLR650 alternator can handle it; I THINK a KLR250 can also. While HIDs and LEDs may produce more light, this bulb's low-beam pattern and high-beam focus put it 'way ahead of the OEM H4.
Again, good point about having the rider's weight on the bike when aiming the headlight.