Posted by The Older Gentleman on July 20, 2010, 9:11 am
> Look up Lord Kelvin...
>
> http://en.wikipedia.org/wiki/Four-terminal_sensing
<Snip interesting stuff>
Thanks for that. Like I've said before, electrickery really isn't my
strong suit. I've only had four bikes (I think) over the decades with
duff charging sytems.
One was a Suzuki GS250 with a typically crap Suzy late 1970s-early 1980s
charging system and that fried the alternator and reg/rec.
Then there was a Suzuki TS250 dirt bike whose connections to the tiny
little solid-state reg-rec had corroded badly. The Yamaha 660 Tenere
which had the same ailment and died on the way back from last year's
Elefant, and was abandoned in Germany with a wonderfully cooked
alternator and wiring loom.
And finally, the modern Triumph whose reg/rec just surrendered after
2000 miles, and whose reg/rec has apparently been replaced with a unit
that "has greater longevity", according to the dealer. In other words,
the old one wasn't any good.
--
BMW K1100LT Ducati 750SS Triumph Street Triple Honda CB400F
Suzuki TS250 Suzuki GN250 chateaudotmurrayatidnetdotcom
Nothing damages a machine more than an ignoramus with a manual, a
can-do attitude and a set of cheap tools
Posted by Mark Olson on July 20, 2010, 9:30 am
The Older Gentleman wrote:
>
>> Look up Lord Kelvin...
>>
>> http://en.wikipedia.org/wiki/Four-terminal_sensing
>
> <Snip interesting stuff>
>
> Thanks for that. Like I've said before, electrickery really isn't my
> strong suit. I've only had four bikes (I think) over the decades with
> duff charging sytems.
>
> One was a Suzuki GS250 with a typically crap Suzy late 1970s-early 1980s
> charging system and that fried the alternator and reg/rec.
>
> Then there was a Suzuki TS250 dirt bike whose connections to the tiny
> little solid-state reg-rec had corroded badly. The Yamaha 660 Tenere
> which had the same ailment and died on the way back from last year's
> Elefant, and was abandoned in Germany with a wonderfully cooked
> alternator and wiring loom.
>
> And finally, the modern Triumph whose reg/rec just surrendered after
> 2000 miles, and whose reg/rec has apparently been replaced with a unit
> that "has greater longevity", according to the dealer. In other words,
> the old one wasn't any good.
Sad to say, most bike electrical systems seem quite marginal in my estimation.
Undersized connectors, poor heat management, poor weather protection, and
undersized wires are all too common. Things that the auto industry figured
out years ago have yet to make it to bikes for whatever reason.
They seem to be generally getting better over time, but there are still some
rather spectacular miscalculations and what can only be described as schoolboy
errors in their design. The ground "spider" fiasco with 2nd generation FJRs
is a prime example.
I know designing wiring looms semms simple but it appears that there is still
a long way to go and I would classify it as an "opportunity" for the bike
makers to differentiate themselves. Not that 1 in 10,000 bike owners would
notice, other than from fewer visits to the shop for various electrical woes.
Posted by LSMFT on July 23, 2010, 8:07 am
mike wrote:
> '83 Honda VT500C Shadow.
> IN hot weather, the battery goes dry in about 500 miles.
> To put in water, I have to take off the seat, remove the battery,
> fill it, reverse the process. PITA.
> It's my garage sale bike, so it does sit idling a lot while
> I'm browsing. The battery does get a workout.
> Anything I can do to reduce the water loss or make it easier to fill?
> Clever fill gadget? Getting water to it ain't hard. It's telling
> when to stop adding water that's hard.
> Regulator is at 14.39V. Well within
> the 15V max stated in the manual.
> I'd crank it down a little if I had the option.
> Ideas?
> Thanks, mike
You can fill a battery with a syringe. They have them at auto parts
stores. The holes are too small for regular battery filler tubes.
--
LSMFT
I haven't spoken to my wife in 18 months.
I don't like to interrupt her.
Posted by paul c on July 23, 2010, 8:26 am
LSMFT wrote:
> ...
> You can fill a battery with a syringe. They have them at auto parts
> stores. The holes are too small for regular battery filler tubes.
>
>
Or a plastic straw! (available nearly everywhere)
Posted by paul c on July 23, 2010, 8:30 am
Regarding 'boiling off' is it just the water that is reduced? (IOW no
need to replenish acid?)
>
> http://en.wikipedia.org/wiki/Four-terminal_sensing