50cc Help with Charging System By snurok (Read 1,802 times)

[snurok]

Its a Qlink Axon 50ccc, I changed the stator, CDI box a year ago since it wouldn't start. It worked fine for a year then the Headlamp with blow out due to over voltage.
I changed the Voltage Regulator and still same problem. System would not charge battery.
After checking the voltages coming into the regulator green is grounded, 2 ac voltage show volts when engine running,
red wire battery shows 12v wired to battery without a problem.
So I thought perhaps the staor blew out and installed a new stator.

After install, same problem. System not charging battery.
Rechecked wiring from regulator to stator connector. All wires are continuous with no breaks in the test. 

Tried to connect 2 separate wires from the yellow and white of the stator end bypassing the system harness directly to the regulator. With the engine on still not charging.
This is the 2nd voltage regulator i ordered thinking the prior may have been bad. Could this be a bad voltage regulator again?
Does anyone know how to check the 4 pins of the regulator with a multi meter when its disconnected to verify if its good?

[jct842]

The accepted proceedure is to measure the ac coming off the stator first, I cant tell you from memory what the voltage is but there is a tutorial in library on it. I would also look there for checking reg. John the tested parts guy (tvnacman) may able to help on checking regulator too. Just a thought but your battery may have taken a dump. (if it is not charging.) The voltage unloaded off regulator should be around high 14 with out the battery connected, and a little less with a good charged battery in the circuit when the engine is at half throttle. At idle a good battery might be near 13 or even a little more. A bad battery can drop this voltage a lot, or can act as if it isn't even loading the circuit.

[tvnacman]

jct842 is spot on !!!!!

You said your reading 2 volts off the green wire where are you placing the probes and what setting? Is it .2 or a solid 2 vac or dc. This could be your problem (bad ground).

John

[snurok]

I rechecked again at the stator level and the regulator level.
Green is grounded
Yellow shows 14.5 volts AC
Whites is like 22vac
red is 11.98 from battery

So I think it could only mean the voltage regulator is bad or is not compatible with this 50cc engine system.

[snurok]

also the battery is low when i tested
so it still should show the voltage going into the battery from the regulator
charging which its not

[tvnacman]

what is the battery standing voltage.

The charging system is marginal at best a weak battery will show up like a bad charging system. Did you add anything electrical to the scooter?

John

[snurok]

battery is 12.4 or maybe a bit higher.
nothing additional added.

[tvnacman]

Here is what I would suggest, pull the battery out of the scooter. Charge it on a slow charger (1 or 2 amp) let it auto off. Put it to the side for 24 hours still out of the bike and recheck the voltage.

John




































9

[vstrom]

Did you straighten this out?picked up an axon 50 with 45 miles on it. It appears this is a DC fired scooter. It came with an 8 coil stator which I replaced due to a no spark condition and now I have normal ac voltage with the regulator unplugged 20 volt AC - 50 volt AC while revving. When I plug regulator back in drops my ac voltage down to 7 or 10 volts ac and I have a no charge condition at the battery. It came stock with a 4-pin pigtail regulator with one extra bullet connector wire that I believe feeds the enricher on the carb. I found one place that sold this regulator online but one still same condition even made a pigtail to run a standard 4pin. And have same scenario why can't I convert this AC voltage to charging voltage for the battery? Grounds ohm out good direct feed to battery is good. This is a strange bike looks like qlink used the charging system from another style of bike. Is the 8 coil stator that I put in wrong?