Replacing old 6v headlight bulb w/modern brighter bulb
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Replacing old 6v headlight bulb w/modern brighter bulb PeteJC 06-05-2008
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Posted by PeteJC on June 5, 2008, 12:22 pm
I’m going to ask at my trusty non dealer affiliated neighborhood
motorcycle parts shop but I’d also like your opinions. I’d like to
replace the old fashioned dull bulb in the headlight of my 1974 Honda
XL175 with a 6 volt brighter modern bulb. Can I do this without
having to revamp anything on the bike? Old bulb out and new bulb in
and an instantly better headlight?

Thanks!

--
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Posted by Rayvan on June 5, 2008, 1:19 pm
> I=92m going to ask at my trusty non dealer affiliated neighborhood
> motorcycle parts shop but I=92d also like your opinions. =A0I=92d like to
> replace the old fashioned dull bulb in the headlight of my 1974 Honda
> XL175 with a 6 volt brighter modern bulb. =A0Can I do this without
> having to revamp anything on the bike? =A0Old bulb out and new bulb in
> and an instantly better headlight?

I don't think it'll help much as the silver refector is probably
getting dull.
Get rid of that selenium rectifier and replace it with a solid state
one. Helped on my CT90 quite a bit.
I got mine from this guy...
http://hondarectifiers.com/

--
Rayvan

Posted by Timberwoof on June 6, 2008, 1:14 am
In article

> > I¹m going to ask at my trusty non dealer affiliated neighborhood
> > motorcycle parts shop but I¹d also like your opinions.  I¹d like to
> > replace the old fashioned dull bulb in the headlight of my 1974 Honda
> > XL175 with a 6 volt brighter modern bulb.  Can I do this without
> > having to revamp anything on the bike?  Old bulb out and new bulb in
> > and an instantly better headlight?
>
> I don't think it'll help much as the silver refector is probably
> getting dull.
> Get rid of that selenium rectifier and replace it with a solid state
> one. Helped on my CT90 quite a bit.
> I got mine from this guy...
> http://hondarectifiers.com/

While you're at it, give all the connections along the way to the
headlight a good clean. At 6V, each wire has to pass twice as much
current for the same power as at 12V, and cruddy connections will hinder
that.

It would be worthwhile to search for halogen replacement bulbs, too.

--
Timberwoof <me at timberwoof dot com>
faq: http://www.timberwoof.com/motorcycle/faq.shtml
Ten Steps to Fascism: http://www.guardian.co.uk/usa/story/0,,2064157,00.html

Posted by David T. Ashley on June 6, 2008, 1:29 am
> In article
>
>> > I¹m going to ask at my trusty non dealer affiliated neighborhood
>> > motorcycle parts shop but I¹d also like your opinions. I¹d like to
>> > replace the old fashioned dull bulb in the headlight of my 1974 Honda
>> > XL175 with a 6 volt brighter modern bulb. Can I do this without
>> > having to revamp anything on the bike? Old bulb out and new bulb in
>> > and an instantly better headlight?
>>
>> I don't think it'll help much as the silver refector is probably
>> getting dull.
>> Get rid of that selenium rectifier and replace it with a solid state
>> one. Helped on my CT90 quite a bit.
>> I got mine from this guy...
>> http://hondarectifiers.com/
>
> While you're at it, give all the connections along the way to the
> headlight a good clean. At 6V, each wire has to pass twice as much
> current for the same power as at 12V, and cruddy connections will hinder
> that.
>
> It would be worthwhile to search for halogen replacement bulbs, too.

Speaking of that, weren't cars supposed to go to 48-volt electrical systems
sometime soon (so save copper and expense)?

Has that happened?

How about bikes?

Seems like going 24-volt for motorcycles couldn't hurt.


Posted by Timberwoof on June 7, 2008, 2:34 am

> > In article
> >
> >> > I¹m going to ask at my trusty non dealer affiliated neighborhood
> >> > motorcycle parts shop but I¹d also like your opinions. I¹d like to
> >> > replace the old fashioned dull bulb in the headlight of my 1974 Honda
> >> > XL175 with a 6 volt brighter modern bulb. Can I do this without
> >> > having to revamp anything on the bike? Old bulb out and new bulb in
> >> > and an instantly better headlight?
> >>
> >> I don't think it'll help much as the silver refector is probably
> >> getting dull.
> >> Get rid of that selenium rectifier and replace it with a solid state
> >> one. Helped on my CT90 quite a bit.
> >> I got mine from this guy...
> >> http://hondarectifiers.com/
> >
> > While you're at it, give all the connections along the way to the
> > headlight a good clean. At 6V, each wire has to pass twice as much
> > current for the same power as at 12V, and cruddy connections will hinder
> > that.
> >
> > It would be worthwhile to search for halogen replacement bulbs, too.
>
> Speaking of that, weren't cars supposed to go to 48-volt electrical systems
> sometime soon (so save copper and expense)?
>
> Has that happened?
>
> How about bikes?
>
> Seems like going 24-volt for motorcycles couldn't hurt.

There is a thing in many new cars and BMW motorcycles, the CanBus, which
a serial protocol that various electronic bits and pieces can use to
talk to one another. So the thing about how in BMW cars, turning on the
windshield wipers makes the brakes apply very lightly, just enough to
dry them, can be easily implemented. Unfortunately, things like
headlight modulators, taillight modulators, and LED taillights screw
with the broken-bulb detectors. And the CanBus has had teething problems
in BMW "hexheads".

But you still need a way to power all those gizmos...

--
Timberwoof <me at timberwoof dot com>
faq: http://www.timberwoof.com/motorcycle/faq.shtml
Ten Steps to Fascism: http://www.guardian.co.uk/usa/story/0,,2064157,00.html

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