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Downtown 300 / Re: Biondi Windshield from Scooterville
« on: July 04, 2013, 02:58:38 PM »
How about wind around your head with this one, and especially noise?
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2
Downtown 300 / Re: ACG schematics for Downtown
« on: July 04, 2013, 02:56:14 PM »
Thanks DSC
of course I disconnected the regulator, and measured the ACG coil itself. It was 6 Ohms all around "usually" and not charging enough.
Once after I played around with cables and it magically dropped to 0.8 Ohm I immediately connected regulator, started the scooter and checked the voltage and it was all fine. I rejoiced and reassembled but next day the issue was back during my commute ride.
I think it is coil or its cables playing up, but I have no idea how.
I would have to open the ACG and have a look. Should I mark alignment of the coil?
I am sure I pressed firmly onto socket connectors when measuring; the reason is inside...
I hope I won't have to buy the part for this, as it may be expensive...
Damn... bad luck, it seems...
of course I disconnected the regulator, and measured the ACG coil itself. It was 6 Ohms all around "usually" and not charging enough.
Once after I played around with cables and it magically dropped to 0.8 Ohm I immediately connected regulator, started the scooter and checked the voltage and it was all fine. I rejoiced and reassembled but next day the issue was back during my commute ride.
I think it is coil or its cables playing up, but I have no idea how.
I would have to open the ACG and have a look. Should I mark alignment of the coil?
I am sure I pressed firmly onto socket connectors when measuring; the reason is inside...
I hope I won't have to buy the part for this, as it may be expensive...
Damn... bad luck, it seems...
3
Downtown 300 / Re: ACG schematics for Downtown
« on: June 24, 2013, 02:02:16 PM »
Have you just linked my post to itself, mate? 
I have checked the generator coil resistance and it was 6 Ohm, far from 0.6 the manual quotes. This is on all three coils. How can this be?
The voltage was fluctuating at about 12.5 V when idling, going to 13.2 at 6K rpm. This is no headlights.
When I turn low beam on, the voltage drops to 11.75 V and going down. At about 11.5 the red battery light shows up on the dash. f***.
I have checked the regulator and is seems all good, no short circuits on inputs and 623 Ohm and OFL on output, depending on direction I measured.
I even checked the current it can give - a whopping 16.6 A when shorted onto my multimeter.
I fiddled around for more and noticed there are two more wires coming out of the ACG, I think this is pulsar coil?
After some cable probing and more advanced curses I measured the ACG coils again and it was 0.8 Ohm! How can this be? I was not dreaming.
Then right off I started the scoota and it was charging fine, with 13V idle and 14V at higher revs, even with the high beam on.
Happy, I assembled the scooter but next day's trip to work proved the nature of my fix to be sorely transitional.
It was back into same game, showing me the red battery light as a warning to turn off the headlight. Damnation.
Could this be a relay issue?
How can a coil change its resistance so suddenly?
Is is a static coil or rotating coil system in Downtown? Any more ACG design peculiarities inside?
I have checked the generator coil resistance and it was 6 Ohm, far from 0.6 the manual quotes. This is on all three coils. How can this be?
The voltage was fluctuating at about 12.5 V when idling, going to 13.2 at 6K rpm. This is no headlights.
When I turn low beam on, the voltage drops to 11.75 V and going down. At about 11.5 the red battery light shows up on the dash. f***.
I have checked the regulator and is seems all good, no short circuits on inputs and 623 Ohm and OFL on output, depending on direction I measured.
I even checked the current it can give - a whopping 16.6 A when shorted onto my multimeter.
I fiddled around for more and noticed there are two more wires coming out of the ACG, I think this is pulsar coil?
After some cable probing and more advanced curses I measured the ACG coils again and it was 0.8 Ohm! How can this be? I was not dreaming.
Then right off I started the scoota and it was charging fine, with 13V idle and 14V at higher revs, even with the high beam on.
Happy, I assembled the scooter but next day's trip to work proved the nature of my fix to be sorely transitional.
It was back into same game, showing me the red battery light as a warning to turn off the headlight. Damnation.
Could this be a relay issue?
How can a coil change its resistance so suddenly?
Is is a static coil or rotating coil system in Downtown? Any more ACG design peculiarities inside?
4
Downtown 300 / ACG schematics for Downtown
« on: June 23, 2013, 05:50:01 AM »
Hi Guys
welcome a new member.
I have been a Kymco user since 2008 (Agility 125) and never had an issue.
But now my Downtown is over 2 year old and it seems to have a charging circuit issue - when riding with low or high beam, when not going particularly fast, the dashboard "BATTERY" light turns on.
If I switch headlight off and speed up, it goes away.
I went to a dealer where I bought the scooter for 20K km maintenance and they said "did not notice the issue" but I was still having it.
So I bought a new battery but this did not help.
I wonder if it is a generator, does anyone have a schematics?
Zak
Melbourne Australia
welcome a new member.
I have been a Kymco user since 2008 (Agility 125) and never had an issue.
But now my Downtown is over 2 year old and it seems to have a charging circuit issue - when riding with low or high beam, when not going particularly fast, the dashboard "BATTERY" light turns on.
If I switch headlight off and speed up, it goes away.
I went to a dealer where I bought the scooter for 20K km maintenance and they said "did not notice the issue" but I was still having it.
So I bought a new battery but this did not help.
I wonder if it is a generator, does anyone have a schematics?
Zak
Melbourne Australia
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