Subject: [Roadsters] Electrical question

From: Stan Wilkins via Datsun-roadsters <[email-masked]>
Date: Tue, 27 Oct 2020 03:42:11 +0000

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Maybe a bit more difficult on a murdercicle but here's how I do it on a car=
. Charge the battery so it's at least 1/2 charged, then take the negative c=
able off the battery. Put a test light between the battery post and the cab=
le end. If there is a drain, the light will light. Now start removing elect=
rical things until the light goes out. (On a car I pull fuses one at a time=
.) When the light is out you know which circuit to tackle. That might be en=
ough to get you started.

Stan, who has 2 Yamahas under the deck; wife's DT125 and my DT250

Not a roadster-specific question, but related to vintage vehicles (my '72 Y=
amaha): Any tips on tracking down the cause of a battery draining down near=
 flat after a couple of days of sitting? New(ish) wet-cell battery, just to=
pped up the acid this Friday, charged it up. On Saturday the bike started, =
ran fine (after I cleaned a couple of fouled spark plugs =96 two-strokes, y=
ou gotta love 'em), but went to try it again this evening and it barely lig=
hts the neutral light.

Gary McCormick
'70 Datsun Roadster
SRL311-13291
San Jose, CA[Roadsters] Electrical question

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<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-=
size: 12pt;">Maybe a bit more difficult on a murdercicle but here's how I d=
o it on a car. Charge the battery so it's at least 1/2 charged, then take t=
he negative cable off the battery. Put
 a test light between the battery post and the cable end. If there is a dra=
in, the light will light. Now start removing electrical things until the li=
ght goes out. (On a car I pull fuses one at a time.) When the light is out =
you know which circuit to tackle.
 That might be enough to get you started.</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
 color: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-=
size: 12pt;"><br>
</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
 color: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-=
size: 12pt;">Stan, who has 2 Yamahas under the deck; wife's DT125 and my DT=
250<br>
</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
 color: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-=
size: 12pt;"><br>
</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
 color: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-=
size: 12pt;"><i>Not a roadster-specific question, but related to vintage ve=
hicles (my '72 Yamaha): Any tips on tracking down the cause of a battery dr=
aining down near flat after a couple of
 days of sitting? New(ish) wet-cell battery, just topped up the acid this F=
riday, charged it up. On Saturday the bike started, ran fine (after I clean=
ed a couple of fouled spark plugs =96 two-strokes, you gotta love 'em), but=
 went to try it again this evening
 and it barely lights the neutral light.</i> </span><span style=3D"font-siz=
e:11pt"><br>
<br>
</span><span style=3D"font-size: 12pt;">Gary McCormick</span><span style=3D=
"font-size:11pt"><br>
</span><span style=3D"font-size: 12pt;">'70 Datsun Roadster</span><span sty=
le=3D"font-size:11pt"><br>
</span><span style=3D"font-size: 12pt;">SRL311-13291</span><span style=3D"f=
ont-size:11pt"><br>
</span><span style=3D"font-size: 12pt;">San Jose, CA</span></font></span><s=
pan class=3D"ITWTqi_23IoOPmK3O6ErT" style=3D"font-size: 12pt;">[Roadsters] =
Electrical question</span><br>
</div>
</body>
</html>

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________________________________________

[email-masked]

Archive: http://www.team.net/pipermail/datsun-roadsters http://autox.team.net/archive

Unsubscribe: http://autox.team.net/mailman/options/datsun-roadsters/[email-masked]

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From: Gary McCormick via Datsun-roadsters <[email-masked]>
Date: Mon, 26 Oct 2020 21:03:17 -0700

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Excellent =E2=80=93 thanks!

Gary McCormick
Sent from my iPhone

> On Oct 26, 2020, at 8:44 PM, Stan Wilkins via Datsun-roadsters <datsun-roa=
[email-masked]> wrote:
>=20
> =EF=BB=BF
> Maybe a bit more difficult on a murdercicle but here's how I do it on a ca=
r. Charge the battery so it's at least 1/2 charged, then take the negative c=
able off the battery. Put a test light between the battery post and the cabl=
e end. If there is a drain, the light will light. Now start removing electri=
cal things until the light goes out. (On a car I pull fuses one at a time.) W=
hen the light is out you know which circuit to tackle. That might be enough t=
o get you started.
>=20
>=20
amaha): Any tips on tracking down the cause of a battery draining down near f=
lat after a couple of days of sitting? New(ish) wet-cell battery, just toppe=
d up the acid this Friday, charged it up. On Saturday the bike started, ran f=
ine (after I cleaned a couple of fouled spark plugs =E2=80=93 two-strokes, y=
ou gotta love 'em), but went to try it again this evening and it barely ligh=
ts the neutral light.=20
>=20
>=20
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/datsun-roadsters http://autox.team.=
net/archive
>=20
> Unsubscribe: http://autox.team.net/mailman/options/datsun-roadsters/gkmcc@=
sbcglobal.net
>=20
>=20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Excellent =E2=80=93 thanks!<br><br><div dir=
=3D"ltr">Gary McCormick<div>Sent from my iPhone</div></div><div dir=3D"ltr">=
<br><blockquote type=3D"cite">On Oct 26, 2020, at 8:44 PM, Stan Wilkins via D=
atsun-roadsters &lt;[email-masked]&gt; wrote:<br><br></bloc=
kquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF

<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-12=
52">

<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; c=
olor: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-s=
ize: 12pt;">Maybe a bit more difficult on a murdercicle but here's how I do i=
t on a car. Charge the battery so it's at least 1/2 charged, then take the n=
egative cable off the battery. Put
 a test light between the battery post and the cable end. If there is a drai=
n, the light will light. Now start removing electrical things until the ligh=
t goes out. (On a car I pull fuses one at a time.) When the light is out you=
 know which circuit to tackle.
 That might be enough to get you started.</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; c=
olor: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-s=
ize: 12pt;"><br>
</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; c=
olor: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-s=
ize: 12pt;">Stan, who has 2 Yamahas under the deck; wife's DT125 and my DT25=
0<br>
</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; c=
olor: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-s=
ize: 12pt;"><br>
</span></font></span></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; c=
olor: rgb(0, 0, 0);">
<span class=3D"ITWTqi_23IoOPmK3O6ErT"><font size=3D"2"><span style=3D"font-s=
ize: 12pt;"><i>Not a roadster-specific question, but related to vintage vehi=
cles (my '72 Yamaha): Any tips on tracking down the cause of a battery drain=
ing down near flat after a couple of
 days of sitting? New(ish) wet-cell battery, just topped up the acid this Fri=
day, charged it up. On Saturday the bike started, ran fine (after I cleaned a=
 couple of fouled spark plugs =E2=80=93 two-strokes, you gotta love 'em), bu=
t went to try it again this evening
 and it barely lights the neutral light.</i> </span><span style=3D"font-size=
:11pt"><br>
<br>
</span><span style=3D"font-size: 12pt;">Gary McCormick</span><span style=3D"=
font-size:11pt"><br>
</span><span style=3D"font-size: 12pt;">'70 Datsun Roadster</span><span styl=
e=3D"font-size:11pt"><br>
</span><span style=3D"font-size: 12pt;">SRL311-13291</span><span style=3D"fo=
nt-size:11pt"><br>
</span><span style=3D"font-size: 12pt;">San Jose, CA</span></font></span><sp=
an class=3D"ITWTqi_23IoOPmK3O6ErT" style=3D"font-size: 12pt;">[Roadsters] El=
ectrical question</span><br>
</div>

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 http://www.team.net/donate.html</span><br><span>Archive: http://www.team.ne=
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/span><br><span>Unsubscribe: http://autox.team.net/mailman/options/datsun-ro=
adsters/[email-masked]</span><br><span></span><br><span></span><br></di=
v></blockquote></body></html>=

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From: Mark Miller via Datsun-roadsters <[email-masked]>
Date: Tue, 27 Oct 2020 12:19:59 -0700

I concur and would start with the charging circuit: betting on a bad 
voltage regulator.  And if you don't have a test light a meter set to 
current (mA  DC) is a nice tool as well (especially if there is more 
than one problem).

Regards,

Mark Miller   707-490-5834
[email-masked]

On 10/27/2020 11:00 AM, [email-masked] wrote:
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> Maybe a bit more difficult on a murdercicle but here's how I do it on a car. Charge the battery so it's at least 1/2 charged, then take the negative cable off the battery. Put a test light between the battery post and the cable end. If there is a drain, the light will light. Now start removing electrical things until the light goes out. (On a car I pull fuses one at a time.) When the light is out you know which circuit to tackle. That might be enough to get you started.
>
> Not a roadster-specific question, but related to vintage vehicles (my '72 Yamaha): Any tips on tracking down the cause of a battery draining down near flat after a couple of days of sitting? New(ish) wet-cell battery, just topped up the acid this Friday, charged it up. On Saturday the bike started, ran fine (after I cleaned a couple of fouled spark plugs ? two-strokes, you gotta love 'em), but went to try it again this evening and it barely lights the neutral light.
>
> Gary McCormick
> '70 Datsun Roadster
> SRL311-13291
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From: Gary McCormick via Datsun-roadsters <[email-masked]>
Date: Tue, 27 Oct 2020 13:39:17 -0700

Thanks, another good suggestion. 

Gary McCormick
Sent from my iPhone

> On Oct 27, 2020, at 12:28 PM, Mark Miller via Datsun-roadsters <[email-masked]> wrote:
> 
> I concur and would start with the charging circuit: betting on a bad voltage regulator.  And if you don't have a test light a meter set to current (mA  DC) is a nice tool as well (especially if there is more than one problem).
> 
> Regards,
> 
> Mark Miller   707-490-5834
> Unsubscribe: http://autox.team.net/mailman/options/datsun-roadsters/[email-masked]
> 
>