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Headlight bulb replacement

 
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Green Monster



Joined: 23 Jul 2014
Posts: 19
Location: Roswell, GA

PostPosted: Wed Jan 11, 2023 3:56 pm    Post subject: Headlight bulb replacement Reply with quote

Hey all,

Besides the obvious method that my Clymer manual states, I wondered if there were other tips and tricks this group may offer with replacing the headlight bulb on my K11RS.

I am planning to install the below bulb from Amazon unless I hear back from anyone with other recommendations.

https://www.amazon.com/Upgraded-AUXITO-Headlight-Replacement-Motorcycle/dp/B09JZ6QZ6T/ref=sr_1_1?qid=1673466709&s=automotive&sr=1-1&vehicle=1995-31-18245-20-----14262------1&vehicleName=1995%2BBMW%2BK1100RS&th=1

Many thanks!

Mike[/url]
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1995 K1100RS in Palmetto Green
1988 K75C (sold)
1987K75S (sold)
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Scott_Anderson
Site Admin


Joined: 05 Sep 2006
Posts: 3102
Location: Central Iowa, USA

PostPosted: Wed Jan 11, 2023 5:37 pm    Post subject: Reply with quote

All I can say is try it and report back.
When I purchased my BMW R bike, it had an LED headlamp installed.

Yes, it was definitely brighter, however, I really disliked the beam scatter pattern on the road so I removed the LED and went back to the standard halogen filament lamp that the reflector was designed for.

YMMV
_________________
Ride safe.



1995 K1100LT 0302044
1997 R1100RT ZC62149
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Thu Jan 12, 2023 8:51 am    Post subject: Reply with quote

Scott_Anderson wrote:
All I can say is try it and report back.
When I purchased my BMW R bike, it had an LED headlamp installed.

Yes, it was definitely brighter, however, I really disliked the beam scatter pattern on the road so I removed the LED and went back to the standard halogen filament lamp that the reflector was designed for.
ut outy as
YMMV


You need to procure an LED H4 that generates the same patterns as a halogen H4 from the reflector..

You need a base diameter of 31mm or less for the ring mounted H4 setup.

A couple of years ago I finally found an LED H4 that works well in Ks. It's a good upgrade and even makes the crappy K75S headlight much better.

RT/LT/K1 headlight beam comparison:

LED vs. halogen - low beam


LED vs. halogen - high beam

_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Thu Jan 12, 2023 9:12 am    Post subject: Reply with quote

Flying Duck wrote:
Scott_Anderson wrote:
All I can say is try it and report back.
When I purchased my BMW R bike, it had an LED headlamp installed.

Yes, it was definitely brighter, however, I really disliked the beam scatter pattern on the road so I removed the LED and went back to the standard halogen filament lamp that the reflector was designed for.
ut outy as
YMMV


You need to procure an LED H4 that generates the same patterns as a halogen H4 from the reflector..

You need a base diameter of 31mm or less for the ring mounted H4 setup.

A couple of years ago I finally found an LED H4 that works well in Ks. It's a good upgrade and even makes the crappy K75S headlight much better and also goes just fine without then round headlight of my K75 standard.

RS/RT/LT/K1 headlight beam comparison:

LED vs. halogen - low beam


LED vs. halogen - high beam

_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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Scott_Anderson
Site Admin


Joined: 05 Sep 2006
Posts: 3102
Location: Central Iowa, USA

PostPosted: Thu Jan 12, 2023 10:37 am    Post subject: Reply with quote

Thanks Duck, the other issue I didn't mention in my 1st post was that my modulator caused issues as well.
As the LED is more instant on/off than a traditional filament lamp, my modulator was actually flashing the LED on/off which is technically illegal for non-leo vehicles.....

Maybe someday when my modulator craps out I'll upgrade it to an LED compatible unit with LED bulb.
I'm fine with it now as it is.
_________________
Ride safe.



1995 K1100LT 0302044
1997 R1100RT ZC62149
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Fri Jan 13, 2023 1:45 am    Post subject: Reply with quote

Headlight alignment:

http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/hlh4.change/hlh4.change.htm
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Fri Jan 13, 2023 8:31 am    Post subject: Reply with quote

Scott_Anderson wrote:
Thanks Duck, the other issue I didn't mention in my 1st post was that my modulator caused issues as well.
As the LED is more instant on/off than a traditional filament lamp, my modulator was actually flashing the LED on/off which is technically illegal for non-leo vehicles.....

Maybe someday when my modulator craps out I'll upgrade it to an LED compatible unit with LED bulb.


Headlight modular regs are pretty complicated (Federal so they superceded sprat). Here they are:

Code of Federal Regulation – Title 49, Volume 5, Parts 400 to 999 – Revised as of October 1, 2000
From the U.S. Government Printing Office via GPO Access [CITE: 49CFR571.108] [Page 236-307]

TITLE 49: TRANSPORTATION – CHAPTER V, NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

PART 571, FEDERAL MOTOR VEHICLE SAFETY STANDARDS – Subpart B–Federal Motor Vehicle Safety Standards – Sec. 571.108 Standard No. 108;

Lamps, reflective devices, and associated equipment – 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:

The rate of modulation shall be 240 ±40 cycles per minute.
The headlamp shall be operated at maximum power for 50 to 70 percent of each cycle.
The lowest intensity at any test point shall be not less than 17 percent of the maximum intensity measured at the same point.
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.
Means shall be provided so that both the lower beam and upper beam remain operable in the event of a modulator failure.
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.
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 0.45 volt. The modulator shall meet all the provisions of the standard after completion of the test profile shown in Figure 9.
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

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.
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.
Note: For informational use only. All material and photographs are Copyright © webWorld International, LLC since 2000. All rights reserved. See the webBikeWorld® Site Info page. Product specifications, features and details may change or differ from our descriptions. Always check before purchasing. Read the Terms and Conditions!
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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Scott_Anderson
Site Admin


Joined: 05 Sep 2006
Posts: 3102
Location: Central Iowa, USA

PostPosted: Fri Jan 13, 2023 7:24 pm    Post subject: Reply with quote

Flying Duck wrote:
Scott_Anderson wrote:
Thanks Duck, the other issue I didn't mention in my 1st post was that my modulator caused issues as well.
As the LED is more instant on/off than a traditional filament lamp, my modulator was actually flashing the LED on/off which is technically illegal for non-leo vehicles.....

Maybe someday when my modulator craps out I'll upgrade it to an LED compatible unit with LED bulb.


Headlight modular regs are pretty complicated (Federal so they superceded sprat). Here they are:

Code of Federal Regulation – Title 49, Volume 5, Parts 400 to 999 – Revised as of October 1, 2000
From the U.S. Government Printing Office via GPO Access [CITE: 49CFR571.108] [Page 236-307]

TITLE 49: TRANSPORTATION – CHAPTER V, NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

PART 571, FEDERAL MOTOR VEHICLE SAFETY STANDARDS – Subpart B–Federal Motor Vehicle Safety Standards – Sec. 571.108 Standard No. 108;

Lamps, reflective devices, and associated equipment – 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:

The rate of modulation shall be 240 ±40 cycles per minute.
The headlamp shall be operated at maximum power for 50 to 70 percent of each cycle.
The lowest intensity at any test point shall be not less than 17 percent of the maximum intensity measured at the same point.
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.
Means shall be provided so that both the lower beam and upper beam remain operable in the event of a modulator failure.
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.
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 0.45 volt. The modulator shall meet all the provisions of the standard after completion of the test profile shown in Figure 9.
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

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.
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.
Note: For informational use only. All material and photographs are Copyright © webWorld International, LLC since 2000. All rights reserved. See the webBikeWorld® Site Info page. Product specifications, features and details may change or differ from our descriptions. Always check before purchasing. Read the Terms and Conditions!


That is where an LED lamp fails on a traditional modulator, it operates instantaneous for the lamp off cycle, so no "fade" delay to meet that 17% requirement.
They do make LED specific modulators now(I bought one for my Ultra), I'm just not at the point of needing LED headlamp for the BMW's.
_________________
Ride safe.



1995 K1100LT 0302044
1997 R1100RT ZC62149
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Fri Jan 13, 2023 8:22 pm    Post subject: Reply with quote

Quote:

That is where an LED lamp fails on a traditional modulator, it operates instantaneous for the lamp off cycle, so no "fade" delay to meet that 17% requirement.
They do make LED specific modulators now(I bought one for my Ultra), I'm just not at the point of needing LED headlamp for the BMW's.


LED's are dimmed using pulse width modulation that you can adjust so that the LED H4 has full power 83% of the time. PWM uses squarw waves, nor sinusouical.

Like so:



Hrere's an LED modulator.

https://www.amazon.com/New-Wig-Pattern-Wave-Wagger/dp/B079M9R5YN
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Fri Jan 13, 2023 9:08 pm    Post subject: Reply with quote

Scott_Anderson wrote:
Flying Duck wrote:
Scott_Anderson wrote:
Thanks Duck, the other issue I didn't mention in my 1st post was that my modulator caused issues as well.
As the LED is more instant on/off than a traditional filament lamp, my modulator was actually flashing the LED on/off which is technically illegal for non-leo vehicles.....

Maybe someday when my modulator craps out I'll upgrade it to an LED compatible unit with LED bulb.


Headlight modular regs are pretty complicated (Federal so they superceded sprat). Here they are:

Code of Federal Regulation – Title 49, Volume 5, Parts 400 to 999 – Revised as of October 1, 2000
From the U.S. Government Printing Office via GPO Access [CITE: 49CFR571.108] [Page 236-307]

TITLE 49: TRANSPORTATION – CHAPTER V, NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

PART 571, FEDERAL MOTOR VEHICLE SAFETY STANDARDS – Subpart B–Federal Motor Vehicle Safety Standards – Sec. 571.108 Standard No. 108;

Lamps, reflective devices, and associated equipment – 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:

The rate of modulation shall be 240 ±40 cycles per minute.
The headlamp shall be operated at maximum power for 50 to 70 percent of each cycle.
The lowest intensity at any test point shall be not less than 17 percent of the maximum intensity measured at the same point.
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.
Means shall be provided so that both the lower beam and upper beam remain operable in the event of a modulator failure.
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.
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 0.45 volt. The modulator shall meet all the provisions of the standard after completion of the test profile shown in Figure 9.
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

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.
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.
Note: For informational use only. All material and photographs are Copyright © webWorld International, LLC since 2000. All rights reserved. See the webBikeWorld® Site Info page. Product specifications, features and details may change or differ from our descriptions. Always check before purchasing. Read the Terms and Conditions!


That is where an LED lamp fails on a traditional modulator, it operates instantaneous for the lamp off cycle, so no "fade" delay to meet that 17% requirement.
They do make LED specific modulators now(I bought one for my Ultra), I'm just not at the point of needing LED headlamp for the BMW's.


You can program an LED modulator to generate whatever output profile that yiu want.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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Green Monster



Joined: 23 Jul 2014
Posts: 19
Location: Roswell, GA

PostPosted: Mon Jan 16, 2023 2:19 pm    Post subject: Wow! Reply with quote

Thanks Duck and Scott for the super-tech replies and explanations of LED lighting systems. I've opted to go with a brighter white" halogen to mitigate the modulator issue.

Were there any tips and tricks for getting to the bulb besides what my Klymer manual says?
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1995 K1100RS in Palmetto Green
1988 K75C (sold)
1987K75S (sold)
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Mon Jan 16, 2023 3:51 pm    Post subject: Reply with quote

It should be pretty straightforward.

Where did you find a Palmetto Green RS? Was it the one on the east side of Seattle?
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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michaelcurrin
Flying Brick Rider


Joined: 01 Jun 2003
Posts: 328
Location: eastern NC

PostPosted: Mon Jan 16, 2023 8:08 pm    Post subject: Reply with quote

Quote:
A couple of years ago I finally found an LED H4 that works well in Ks. It's a good upgrade and even makes the crappy K75S headlight much better.


Which one are you using? I tried a couple different ones a few years back with fairly disappointing results.
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20 BMW R1250RS
93 BMW K1100RS / EML Speed 2000
06 Ducati ST3
67 Triumph 650 chopper
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Flying Duck
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Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Mon Jan 16, 2023 10:45 pm    Post subject: Reply with quote

michaelcurrin wrote:
Quote:
A couple of years ago I finally found an LED H4 that works well in Ks. It's a good upgrade and even makes the crappy K75S headlight much better.


Which one are you using? I tried a couple different ones a few years back with fairly disappointing results.


They've come under several different ChiCom brand names but the ones that I've had good luck with all look like this.


_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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John Clauss
Flying Brick Rider


Joined: 04 Apr 2003
Posts: 720
Location: Robesonia, PA

PostPosted: Fri Jan 27, 2023 11:58 am    Post subject: Reply with quote

Flying Duck wrote:
michaelcurrin wrote:
Quote:
A couple of years ago I finally found an LED H4 that works well in Ks. It's a good upgrade and even makes the crappy K75S headlight much better.


Which one are you using? I tried a couple different ones a few years back with fairly disappointing results.


They've come under several different ChiCom brand names but the ones that I've had good luck with all look like this.



I installed one of these last year and I am super happy with the results. No more dull yellow headlight. Bright white light that really illuminates the road.
_________________
1997 K1100LT
1975 R75/6

It will bring you so close to nausea, it will make you sick! - Big Al
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10039
Location: Bumf***, WA

PostPosted: Fri Jan 27, 2023 12:38 pm    Post subject: Reply with quote

Aside from good white headlight beams, LED H4s also draw less watts so, at least in theory, they won't wear out the headlight contacts in the left combo switch as much.

(It still doesn't hurt to add headlight relays though.)
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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SugarHillCTD
Site Admin


Joined: 10 Oct 2007
Posts: 4235
Location: Now in Eastern Pennsylvania

PostPosted: Sat Jan 28, 2023 5:11 pm    Post subject: Reply with quote

Flying Duck wrote:
Aside from good white headlight beams, LED H4s also draw less watts so, at least in theory, they won't wear out the headlight contacts in the left combo switch as much.

(It still doesn't hurt to add headlight relays though.)


That was my thought- headlight relay!
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