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constellation rectifier output
#817011 07/22/20 1:27 am
Joined: May 2020
Posts: 4
REDylan Offline OP
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Joined: May 2020
Posts: 4
just fired my project up this weekend, a 59 connie.
i believe im having an issue with the way its regulating (or not) the alternator output.
i used a Boyer RECT00111 25 AMP REPLACES Lucas +/- EARTH.. to replace the old crusty rectifier.
i also installed a LU47204 6volt stator i got from hitchcocks.
there were no regulating parts on the bike, the lighting switch connections are supposed to vary alternator out put by changing the coil connections

i ran the bike with a meter on the leads ill later connect to my battery.
with my lighting switch at OFF i was getting 8-12VDC at idol
At my pilot position i was getting about the same
at my head position i was getting around 6VDC

These checks are made with all my wiring connected so my lights were coming on. The voltage rises with the idol speed 20V +, im having a fuel issue so i cant run the bike for to long before it wants to rev to the moon.

i checked my wiring from the stator to my lighting switch and ohm'ed between the alternator connections and am pretty sure ive got it right.
i would expect my voltage to vary a bit with the lighting load but i thought id see a lower voltage than what i was reading.
im trying to run the setup ive got so i dont want to convert to 12V. Id rather figure out why what i have isnt working.
what am i missing here.

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Re: constellation rectifier output
REDylan #817027 07/22/20 6:53 am
Joined: Sep 2013
Posts: 2,715
Likes: 58
Britbike forum member
Britbike forum member
Joined: Sep 2013
Posts: 2,715
Likes: 58
how is the bike running without a battery ?
is this a magneto bike ? I thought it was a battery coil ignition bike .

if its a magneto , add the battery and watch for voltage drop .
the battery is a load ...,and should pull voltage down a little .
dont leave the battery on for long
if voltage doesn't drop to 7.3 volts .

the 6 volt unregulated , load switching wiring
is deceptively complicated .

do you have the correct wiring diagram ... with switch pin locations
and Correct switches ?

Last edited by quinten; 07/22/20 6:54 am.

Moderated by  royaloilfield 

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