Wednesday, May 23, 2007

49 CFR Part 571.108 S7.9.4, oh, and plus you're a Squid!

Bottom line, officer Mr. Moustache:

I will NEVER. NEVER. listen to a motorcycle safety lecture given by a guy who rides a bike known for it's poor handling and braking, wearing a half helmet and essentially a T-Shirt. NOTHING you say to me, from "do you know why I pulled you over," to the "motorcycling is a blast, but is is dangerous," to the "be careful pulling back into traffic," will register with me AT ALL. I make fun of people like you all day long. "Haha, look at that dumbass wearing a T-Shirt and no gloves on his motorcycle!" You, sir, are a well paid SQUID.

Hello? Motorcycles are dangerous? I am dressed head to toe in a full faced helmet, heavy textile gear of a high quality brand, including CE-approved armor, the best gloves I believe you can buy, and eye-talian CE approved riding boots. Every bit of me is covered. You? Might as well ride naked. Except you've got big boots. Yay for you. You'll have no face and no arms and a ton of roadrash when you crash, but at least you'll be able to walk home. Have fun picking that short-sleeved polyester shirt out of your skin. Nevermind, it will probably be melted in.

"When someone changes lanes on you, you won't be able to stop. You just won't." Um? Speak for yourself, jackass! I'm not the dipshit riding the 4 million pound Harley. YOU won't be able to stop.

Finally, the last reason I won't listen to the rest of your lecture? You're flat out wrong. Headlight modulators ARE legal, and the fact that you don't know that means I don't respect the law portion of you lecture either. I always figured cops would just respect me a little more for taking the effort to be visible and use my LEGAL modulator for such. Not you! You're offended, self-righteous, and most importantly, WRONG. It was funny that you gave such detail about how and when and how many feet. All those incredible details that YOU MADE UP.

"I wasn't aware of that, officer. I was not aware that they were illegal." Specifically, I WAS aware that they ARE legal, but will get a sense of satisfaction when I hand the judge a bit of legal code in court making you look like an ass. Oh, and it is federal code, not CVC. So good luck with that.




Title 49 USC 30103(b1) (US Codes) prohibits any state from forbidding a system that conforms to FMVSS 108.




S7.9 Motorcycles. Each motorcycle shall be equipped with a
headlighting system designed to conform to the following requirements.
S7.9.1 A motorcycle manufactured before September 1, 2000, may be
equipped with--
(a) A headlighting system designed to conform to SAE Standard J584
Motorcycle Headlamps April 1964, or to SAE Standard J584 April 1964 with
the photometric specifications of Figure 32 and the upper beam
aimability specifications of paragraph S7.9.3; or
(b) One half of any headlighting system specified in S7.1 through
S7.6 which provides both a full upper beam and full lower beam. Where
more than one lamp must be used, the lamps shall be mounted vertically,
with the lower beam as high as practicable.
S7.9.2 A motorcycle manufactured on or after September 1, 2000,
shall be equipped with--
(a) A headlighting system designed to conform to SAE Standard J584
Motorcycle Headlamps April 1964 with the photometric specifications of
Figure 32 and the upper beam aimability specifications of paragraph
S7.9.3; or
(b) A headlighting system that conforms to S7.9.1(b).
S7.9.3 The upper beam of a multiple beam headlamp designed to
conform to the photometric requirements of Figure 32 shall be aimed
photoelectrically during the photometric test in the manner prescribed
in SAE Standard J584 OCT93 Motorcycle Headlamps.
S7.9.4 Motorcycle headlamp modulation system.
S7.9.4.1 A headlamp on a motorcycle may be wired to modulate either
the upper beam or the lower beam from its maximum intensity to a lesser
intensity, provided that:
(a) The rate of modulation shall be 240 40
cycles per minute.
(b) The headlamp shall be operated at maximum power for 50 to 70
percent of each cycle.
(c) The lowest intensity at any test point shall be not less than 17
percent of the maximum intensity measured at the same point.
(d) The modulator switch shall be wired in the power lead of the
beam filament being modulated and not in the ground side of the circuit.
(e) Means shall be provided so that both the lower beam and upper
beam

[[Page 318]]

remain operable in the event of a modulator failure.
(f) The system shall include a sensor mounted with the axis of its
sensing element perpendicular to a horizontal plane. Headlamp modulation
shall cease whenever the level of light emitted by a tungsten filament
light operating at 3000[deg] Kelvin is either less than 270 lux (25
foot-candles) of direct light for upward pointing sensors or less than
60 lux (5.6 foot-candles) of reflected light for downward pointing
sensors. The light is measured by a silicon cell type light meter that
is located at the sensor and pointing in the same direction as the
sensor. A Kodak Gray Card (Kodak R-27) is placed at ground level to
simulate the road surface in testing downward pointing sensors.
(g) When tested in accordance with the test profile shown in Figure
9, the voltage drop across the modulator when the lamp is on at all test
conditions for 12 volt systems and 6 volt systems shall not be greater
than .45 volt. The modulator shall meet all the provisions of the
standard after completion of the test profile shown in Figure 9.
(h) Means shall be provided so that both the lower and upper beam
function at design voltage when the headlamp control switch is in either
the lower or upper beam position when the modulator is off.
S7.9.4.2(a) Each motorcycle headlamp modulator not intended as
original equipment, or its container, shall be labeled with the maximum
wattage, and the minimum wattage appropriate for its use. Additionally,
each such modulator shall comply with S7.9.4.1 (a) through (g) when
connected to a headlamp of the maximum rated power and a headlamp of the
minimum rated power, and shall provide means so that the modulated beam
functions at design voltage when the modulator is off.
(b) Instructions, with a diagram, shall be provided for mounting the
light sensor including location on the motorcycle, distance above the
road surface, and orientation with respect to the light.
S7.9.5 Each replaceable bulb headlamp that is designed to meet the
photometric requirements of paragraph S7.9.1(a) or paragraph S7.9.2(a)
and that is equipped with a light source other than a replaceable light
source meeting the requirements of paragraph S7.7, shall have the word
``motorcycle'' permanently marked on the lens in characters not less
than 0.114 in. (3 mm) in height.
S7.9.6 A headlamp system shall be installed on a motorcycle in
accordance with the requirements of this paragraph.
S7.9.6.1 The headlamp system shall be located on the front of the
motorcycle.
S7.9.6.2 (a) If the system consists of a single headlamp, it shall
be mounted on the vertical centerline of the motorcycle. If the headlamp
contains more than one light source, each light source shall be mounted
on the vertical centerline with the upper beam no higher than the lower
beam, or horizontally disposed about the vertical centerline and mounted
at the same height. If the light sources are horizontally disposed about
the vertical centerline, the distance between the closest edges of the
effective projected luminous lens area in front of the light sources
shall not be greater than 200 mm (8 in.).
(b) If the system consists of two headlamps, each of which provides
both an upper and lower beam, the headlamps shall be mounted either at
the same height and symmetrically disposed about the vertical centerline
or mounted on the vertical centerline. If the headlamps are horizontally
disposed about the vertical centerline, the distance between the closest
edges of their effective projected luminous lens areas shall not be
greater than 200 mm (8 in.).
(c) If the system consists of two headlamps, one of which provides
an upper beam and one of which provides the lower beam, the headlamps
shall be located on the vertical centerline with the upper beam no
higher than the lower beam, or horizontally disposed about the vertical
centerline and mounted at the same height. If the headlamps are
horizontally disposed about the vertical centerline, the distance
between the closest edges of their effective projected luminous lens
areas shall not be greater than 200 mm (8 in.).

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