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Post by cpuraider on Jul 13, 2012 17:48:29 GMT -5
Alright guys, I'm gonna start things off with the admission that I know nothing about scooters. I'm a computer tech by trade... I've done a couple minor mods on my scoot but nothing major. Just a new exhaust and air filter. I'm looking into buying a performance CDI but don't know 100% for sure if my scoot is AC or DC fired. Any help will be much appreciated
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Post by floridaguy on Jul 13, 2012 17:56:13 GMT -5
it is ac. But a good why to tell for sure is a dc cdi will only run with a battery. If your bike will run without the battery it is a ac cdi.
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Post by millsc on Jul 13, 2012 17:56:26 GMT -5
should be ac fired my tao is and nice exhaust i have the same one probably should put the clamp on it so you dont break the pipe
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Post by millsc on Jul 13, 2012 18:06:06 GMT -5
homemade clamp bracket Attachments:
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Post by cpuraider on Jul 13, 2012 18:11:28 GMT -5
should be ac fired my tao is and nice exhaust i have the same one probably should put the clamp on it so you dont break the pipe It's welded and bolted into place in two spots along the pipe so it's pretty solid... just hard to see I guess. I love it though! Really throaty sound.
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Post by millsc on Jul 13, 2012 18:12:07 GMT -5
oh ok cool i love the sound also
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Post by cpuraider on Jul 13, 2012 18:12:32 GMT -5
it is ac. But a good why to tell for sure is a dc cdi will only run with a battery. If your bike will run without the battery it is a ac cdi. Thanks, I'll def try that!
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Post by D-cat on Jul 15, 2012 16:39:33 GMT -5
Busting AC vs DC indicators myths ...a good why to tell for sure is a dc cdi will only run with a battery. If your bike will run without the battery it is a ac cdi. That's actually not right; if that were true a DC fired bike would never have the battery charged. Since it does, it's obvious that the stator can produce enough power to charge the CDI and then some. Disconnecting the battery will not prevent you from running or kickstarting a DC fired ignition. Every once in a while I do have to explain to someone why when they bought the wrong CDI for their bike thinking it was AC because the engine kept running when they disconnected the battery, when it was actually a DC ignition. It would be more correct to say that a DC fired ignition will not be started on a dead battery. A dead battery would be sucking in your kick start effort and not allowing enough juice to charge the CDI. -- Another myth, headlights on with ignition. The headlight circuit is unrelated to the CDI charge circuit and while may have some effect on probability (I do not have the statistics on this) it is in no way an actual indicating factor. There is no reason you can't have AC headlights and a DC ignition or vice versa. -- Things that do work: The one or two wires on the 2-pin CDI connector is very accurate on GY6 engines. There is a rare exception, but for the most part two wires is AC and I think always one wire is DC. More broadly, DC only requires a total of 4 wires to the CDI where AC requires at least 5 (the 5th being a kill switch). -- You can also look at the stator output wires. The presence of a red/black or black/red wire is indicative of AC; that is the wire from the AC CDI charge or "exciter" coil. -- When all else eludes you, bring out the multimeter or auto tester light. With the CDI disconnected and ignition on (do not attempt to start) test the CDI pins for +12v DC (on GY6 this will be pin 6, or the lower of the 2-pin connector). Finding +12v is an indicator for DC. Not finding it is probably AC, though if you want you can now test the pins cranking (beware if using a light- a properly functioning exciter coil will push in excess of 45v AC).
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Post by jecole7 on Sept 7, 2012 11:15:13 GMT -5
Where did you get the muffler and for how much $?
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