ADVrider

Go Back   ADVrider > Bikes > Old's Cool
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-28-2012, 10:10 PM   #766
hunter_greyghost
XS650 Allroads Traveller
 
hunter_greyghost's Avatar
 
Joined: Sep 2008
Location: Yass, Australia
Oddometer: 8,010
Is that resistor also called a zeon diode or something like that? vaguely remember a unit on old bikes I had in the past
Cheers
Baza
__________________
1981 XS650SH "Tourer" [ For Sale - when / maybe?], 1975 XS650B "Adventure" ['Kenny Krazyhorse'], 1982 XL500R 'Project'
www.aussiegreyghost.smugmug.com
Couldn't afford a 'GSA', so now it's an 'XSA' "I didn't do it! & whoever said I did, is a liar!"
hunter_greyghost is online now   Reply With Quote
Old 03-29-2012, 11:48 AM   #767
dungspreader
King of the Heap
 
dungspreader's Avatar
 
Joined: Jun 2005
Location: In a field somewhere ,muttering .
Oddometer: 451
Quote:
Originally Posted by retiredgentleman View Post
That will not work. The stock regulators and a PMA regulator operate on totally different principles.

With the stock system, when the alternator produces higher voltage as the rpm goes up, the regulator reduces the voltage going to the rotor and this keeps the output voltage at around 14.3 volts, which is safe.

With the PMA when the alternator voltage starts to exceed 14.3 volts, there is no way to reduce the rotor voltage because it does not have any voltage at the rotor. The PMA just keeps generating its full output as the rpm goes up. Once the voltage goes above 14.3 volts, the PMA regulator starts directing the excess current to a resistor as a dummy load. The resistor gets rid of the extra current in the form of heat. The PMA is a bit like driving your car with one foot fully down on the gas and one foot on the brake to control the speed.

If you do run your bike with the PMA and the stock regulator, the output voltage to the bike and battery could go way up to 20 or more volts, which will likely cook your ignition/lights etc............................oh yeah, smoke is a definite possibility
Yep , that's right .But with regard to regulating the voltage ; I wondered whether the reg / rect would restrict the voltage to the brushes , or whether it just sent 12v down there all the time and then turn the excess into heat [ like a five wire reg/rect would do ] .

ANYWAY - I gave it a shot and the results were 13.5 volts at 1200 rpm , rising to 17.5 volts at 3500 rpm . After that I didn't go any further .
SO , the reg/rect off a later special will not work on a PMA system unless you add a voltage regulator as well .
__________________
I thought WanKing was a town in China 'till I discovered Adventure Rider
dungspreader is offline   Reply With Quote
Old 03-29-2012, 11:56 AM   #768
dungspreader
King of the Heap
 
dungspreader's Avatar
 
Joined: Jun 2005
Location: In a field somewhere ,muttering .
Oddometer: 451
Quote:
Originally Posted by hunter_greyghost View Post
Is that resistor also called a zeon diode or something like that? vaguely remember a unit on old bikes I had in the past
Cheers
Baza
Hi Baza , cheers for the wiring diagram .
What you are referring to is a Zener Diode . It is a crude voltage regulator that just turns excess voltage into heat , you mount it on a heatsink . [ A finned plate on Triumphs and BSA , the alloy footrest brackets on a Norton Commando ].
They work , but they are expensive and you need a rectifier as well .

Modern reg/rects are a better alternative .

I guess I'm just going to have put my hand in my pocket and buy one !
__________________
I thought WanKing was a town in China 'till I discovered Adventure Rider
dungspreader is offline   Reply With Quote
Old 03-29-2012, 01:24 PM   #769
ThomasVolomitz
New Old Stock
 
ThomasVolomitz's Avatar
 
Joined: Aug 2010
Location: NE Ohio
Oddometer: 4,349
Quote:
Originally Posted by hunter_greyghost View Post
Is that resistor also called a zeon diode or something like that? vaguely remember a unit on old bikes I had in the past
Cheers
Baza
I believe that it is commonly known as a flux capacitor.
__________________
https://m.facebook.com/dualsportdelinquents

Still Riff Raff
ThomasVolomitz is offline   Reply With Quote
Old 03-29-2012, 05:36 PM   #770
Mr. Whipple
Adventurer
 
Mr. Whipple's Avatar
 
Joined: Jan 2012
Location: New England
Oddometer: 21
Quote:
Originally Posted by hunter_greyghost View Post
Put a new clutch in 'Kenny' last time I got into his guts but I'm not happy with the performance factor, noticed a bit slip up the hills the other weekend, + feels light for H/D springs

Thinking of trying out some H/D Barnett jobs from 650Central, don't want to have slipping clutch next time I've got the trailer behind.
Anyone recommend any thing else?
Cheers
Baza
You'll have an impressive handshake after using those Barnett springs for a season. They are pretty firm. Did you burn in the new clutch? What oil are you using?
Mr. Whipple is offline   Reply With Quote
Old 03-30-2012, 02:53 AM   #771
hunter_greyghost
XS650 Allroads Traveller
 
hunter_greyghost's Avatar
 
Joined: Sep 2008
Location: Yass, Australia
Oddometer: 8,010
Quote:
Originally Posted by Mr. Whipple View Post
You'll have an impressive handshake after using those Barnett springs for a season. They are pretty firm. Did you burn in the new clutch? What oil are you using?
Can you give me an idea of what you mean by 'burning in the clutch',
haven't heard that term before,
clutch got a bit of a workout when I did the Bridle Track last month, creek crossings & muddy tracks mean a bit of feathering of the clutch @ times
Using a Castrol oil, 25-50 weight from memory, can't remember the name but it hasn't been a problem before, used it last 5 yrs, I'll get back to ya on the name & specs
Cheers
Baza
__________________
1981 XS650SH "Tourer" [ For Sale - when / maybe?], 1975 XS650B "Adventure" ['Kenny Krazyhorse'], 1982 XL500R 'Project'
www.aussiegreyghost.smugmug.com
Couldn't afford a 'GSA', so now it's an 'XSA' "I didn't do it! & whoever said I did, is a liar!"
hunter_greyghost is online now   Reply With Quote
Old 04-01-2012, 04:21 AM   #772
hunter_greyghost
XS650 Allroads Traveller
 
hunter_greyghost's Avatar
 
Joined: Sep 2008
Location: Yass, Australia
Oddometer: 8,010
Quote:
Originally Posted by dungspreader View Post
Hi Baza , cheers for the wiring diagram .
What you are referring to is a Zener Diode . It is a crude voltage regulator that just turns excess voltage into heat , you mount it on a heatsink . [ A finned plate on Triumphs and BSA , the alloy footrest brackets on a Norton Commando ].
They work , but they are expensive and you need a rectifier as well .

Modern reg/rects are a better alternative .

I guess I'm just going to have put my hand in my pocket and buy one !
I use the reg/rect units that MikesXS sell, haven't had any problems so far!
Cheers
Baza
__________________
1981 XS650SH "Tourer" [ For Sale - when / maybe?], 1975 XS650B "Adventure" ['Kenny Krazyhorse'], 1982 XL500R 'Project'
www.aussiegreyghost.smugmug.com
Couldn't afford a 'GSA', so now it's an 'XSA' "I didn't do it! & whoever said I did, is a liar!"
hunter_greyghost is online now   Reply With Quote
Old 04-02-2012, 08:28 PM   #773
bk brkr baker
Beastly Adventurer
 
bk brkr baker's Avatar
 
Joined: Jul 2006
Location: The Bluegrass
Oddometer: 5,460


From the AHRMA Daytona races in 1988. An XS650 in the 750 Sportsman class.



And another in a purpose built flat track frame converted to street trim.
__________________
RR's Catnip Hill to Peoria ___Loopin' Seattle to WestFest
It started with some beers __1500 miles to the Dentist
Skeedaddle to Seattle______ A 30 year old on a Three Flags Run
bk brkr baker is offline   Reply With Quote
Old 04-03-2012, 03:43 AM   #774
hunter_greyghost
XS650 Allroads Traveller
 
hunter_greyghost's Avatar
 
Joined: Sep 2008
Location: Yass, Australia
Oddometer: 8,010

What's that second lever above the brake lever?
Cheers
Baza
__________________
1981 XS650SH "Tourer" [ For Sale - when / maybe?], 1975 XS650B "Adventure" ['Kenny Krazyhorse'], 1982 XL500R 'Project'
www.aussiegreyghost.smugmug.com
Couldn't afford a 'GSA', so now it's an 'XSA' "I didn't do it! & whoever said I did, is a liar!"
hunter_greyghost is online now   Reply With Quote
Old 04-03-2012, 06:19 AM   #775
bk brkr baker
Beastly Adventurer
 
bk brkr baker's Avatar
 
Joined: Jul 2006
Location: The Bluegrass
Oddometer: 5,460
Quote:
Originally Posted by hunter_greyghost View Post
What's that second lever above the brake lever?
Cheers
Baza

Flat track bikes in America only turn left and lean lto the left. Unless it's a TT race.
But anyway that's the shift lever moved to the right side. The right foot does double duty and the left foot wears a steel shoe to slide with.
__________________
RR's Catnip Hill to Peoria ___Loopin' Seattle to WestFest
It started with some beers __1500 miles to the Dentist
Skeedaddle to Seattle______ A 30 year old on a Three Flags Run
bk brkr baker is offline   Reply With Quote
Old 04-03-2012, 02:44 PM   #776
hunter_greyghost
XS650 Allroads Traveller
 
hunter_greyghost's Avatar
 
Joined: Sep 2008
Location: Yass, Australia
Oddometer: 8,010
Quote:
Originally Posted by bk brkr baker View Post
Flat track bikes in America only turn left and lean lto the left. Unless it's a TT race.
But anyway that's the shift lever moved to the right side. The right foot does double duty and the left foot wears a steel shoe to slide with.
OK, now I know, it also work for a leg amputee as well, either leg - move the levers [& tack on a chair]
Cheers
Baza
__________________
1981 XS650SH "Tourer" [ For Sale - when / maybe?], 1975 XS650B "Adventure" ['Kenny Krazyhorse'], 1982 XL500R 'Project'
www.aussiegreyghost.smugmug.com
Couldn't afford a 'GSA', so now it's an 'XSA' "I didn't do it! & whoever said I did, is a liar!"
hunter_greyghost is online now   Reply With Quote
Old 04-03-2012, 03:56 PM   #777
dungspreader
King of the Heap
 
dungspreader's Avatar
 
Joined: Jun 2005
Location: In a field somewhere ,muttering .
Oddometer: 451


That right hand gearshift would be ideal for this conversion.
__________________
I thought WanKing was a town in China 'till I discovered Adventure Rider
dungspreader is offline   Reply With Quote
Old 04-03-2012, 08:36 PM   #778
2manyrides
shifty charactor
 
2manyrides's Avatar
 
Joined: Aug 2008
Location: Citrus Heights Ca.
Oddometer: 1,584
^^^^

the motor fits in there but the counter shaft seems so much lower than the swingarm pivot.
__________________
too many...
I have completely lost count

and here's my channel...
http://www.youtube.com/user/2manyrides?feature=mhsn#p/u
2manyrides is offline   Reply With Quote
Old 04-03-2012, 09:32 PM   #779
dungspreader
King of the Heap
 
dungspreader's Avatar
 
Joined: Jun 2005
Location: In a field somewhere ,muttering .
Oddometer: 451
Here's another .
http://www.xs650chopper.com/2010/10/...nfield-bullet/

Actually , I quite like the look of the bike .

Is it a Yamfield , Enfaha , Royal Yamfield ?
__________________
I thought WanKing was a town in China 'till I discovered Adventure Rider

dungspreader screwed with this post 04-03-2012 at 09:43 PM
dungspreader is offline   Reply With Quote
Old 04-06-2012, 10:49 AM   #780
2manyrides
shifty charactor
 
2manyrides's Avatar
 
Joined: Aug 2008
Location: Citrus Heights Ca.
Oddometer: 1,584
celebrities of a sort

OK,
I have boasted, and I have shown this pic;



Now the rest of the story;
(names and faces altered to protect the innocent)

__________________
too many...
I have completely lost count

and here's my channel...
http://www.youtube.com/user/2manyrides?feature=mhsn#p/u
2manyrides is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 11:27 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014