Classic British SparesKlempf British PartsBaxter CycleBritBike Sponsor SteadfastCyclesSRM EngineeringLucas Classic MotorcycleHepolite PistonsIndustrial tec supply

Upgrade your membership to: Premium Membership | Gold Membership | Life Membership | Vendor Membership | Site Sponsor Membership
Welcome to BritBike Forum!
Britbike forum logo
Member Spotlight
C.B.S
C.B.S
Lancaster, California
Posts: 1,296
Joined: February 2014
ShoutChat
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Previous Thread
Next Thread
Print Thread
#29735 10/01/07 6:37 pm
Joined: Jan 2006
Posts: 64
N
nortonc Offline OP
Britbike forum member
OP Offline
Britbike forum member
N
Joined: Jan 2006
Posts: 64
Hi have a problem with over charging I have a typanium unit hook up to my battery and it is overcharging the battery 17 18 volts all over the place is this due to a bad typanium or do I have it hooked up backwards positive ground system anyway if it is it should I switch to a Podtronics are they better I have been blowing front lights out but not back one so I put a meter on it and it was showing 17 19 volts nothing consistent all over the place could it be the rotor etc...

help appreciated

Support Your #1 BritBike Forum!

Check out British motorcycles for sale: British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
#29736 10/01/07 8:54 pm
Joined: Jan 2006
Posts: 148
R
Britbike forum member
Offline
Britbike forum member
R
Joined: Jan 2006
Posts: 148
What kind of bike do you have?

I`m not familiar with the typanium unit unfortunately. Don`t think this will help you much, but on A65 you problem could be a default zener diode. Or if you have upgraded your system maybe you need two zener diodes to hold the watts down. How much is there with full lights on?

Don`t think it`s the rotor, your problem would be the opposite if the rotor was weak.

Good luck, and you`ll get better answers soon :-)


1940 M21
1960 Golden Flash

"Everything takes longer time than it takes"
#29737 10/01/07 9:29 pm
Joined: Jan 2006
Posts: 64
N
nortonc Offline OP
Britbike forum member
OP Offline
Britbike forum member
N
Joined: Jan 2006
Posts: 64
the bike is a 1969 bsa Royal Star

#29738 10/01/07 9:32 pm
Joined: Sep 2002
Posts: 7,731
Likes: 1
Britbike forum member
Offline
Britbike forum member
Joined: Sep 2002
Posts: 7,731
Likes: 1
Sounds like the tympanium is defective or not wired up correctly. Don't know if Pods are any better. I've got a tympanium on mine.


A smattering:
'53 Gold Flash
'67 Royal Star
'71 Rickman Metisse
'40 Silver Star
'37 Rudge Special
sixtyseventy Lightboltrocket road racer...and many more.
#29739 10/02/07 11:43 am
Joined: Aug 2001
Posts: 5,380
Likes: 32
R
Britbike forum member
Offline
Britbike forum member
R
Joined: Aug 2001
Posts: 5,380
Likes: 32
In addition to what Alex suggested, does the Tympanium actually have a good ground? What you have told us points to a problem with the charge control unit.

Do a search on this site on grounds. There has been a lot posted. Grounding is more than hooking the battery up to the frame with a wire.

Which is better? Probably which ever one you have installed and is working. Alex has a Tympanium he is happy with, I am happy with Podtronics. Both do the job and do it more efficiently than the stock rectifier/diode.


Never underestimate the human ability to elevate stupid to a whole new level!.
#29740 10/03/07 1:23 am
Joined: Feb 2007
Posts: 2,607
Likes: 34
S
Britbike forum member
Offline
Britbike forum member
S
Joined: Feb 2007
Posts: 2,607
Likes: 34
Hey guys,

What should a properly working zener regulate the voltage to? I got 14.9 volts with the headlight on high at about 4200 rpm on my 69 Firebird.

Thanks,

#29741 10/03/07 10:55 am
Joined: Aug 2001
Posts: 5,380
Likes: 32
R
Britbike forum member
Offline
Britbike forum member
R
Joined: Aug 2001
Posts: 5,380
Likes: 32
Touch high but not unusual with a zener, especially an OLD zener. 14.5V is typically the normal high end on a 12V charging system.

Before binning it, check your ground at the Zener. Not a bad idea to run a dedicate ground from the zener to the same ground point the battery uses, catch the engine at the same time. Also clean the zener and it's mounting area on the heatsink. Then test it again.


Never underestimate the human ability to elevate stupid to a whole new level!.
#29742 10/03/07 11:54 am
Joined: Feb 2007
Posts: 2,607
Likes: 34
S
Britbike forum member
Offline
Britbike forum member
S
Joined: Feb 2007
Posts: 2,607
Likes: 34
Makes sence. Had to do the same on my BMW R65.

Thanks,

#29743 10/03/07 1:20 pm
Joined: Jun 2006
Posts: 804
Britbike forum member
Offline
Britbike forum member
Joined: Jun 2006
Posts: 804
Nortonc, even if the typmp turns out not to be regulating(duff), you could always put a zener across it's output and regulate it that way if it's wired +ve ground.


99% of carb problems are electrical.

1959 3TA

BMW R1150 Oilhead

Moderated by  Allan G, Jon W. Whitley 

Link Copied to Clipboard
Job CycleBritish Cycle SupplyMorries PlaceKlempf British PartsPodtronicVintage MagazineBSA Unit SinglesBritBike SponsorBritish Tools & FastenersBritBike SponsorBritBike Sponsor






© 1996-2021 britbike.com
Powered by UBB.threads™ PHP Forum Software 7.7.5