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Post by tvnacman on Dec 25, 2014 12:48:53 GMT -5
sounds like the cdi is making ground via the black/white wire and killing your spark .
don't get annoyed by it you will beat it . Its a biff in the head problem we are just overlooking .
John
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Post by tvnacman on Dec 25, 2014 11:33:53 GMT -5
are you sure zero look at the top row , infinite on the left side zero on the right side .
John
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Post by tvnacman on Dec 25, 2014 10:36:05 GMT -5
That black/white wire when is has continuity to ground it will kill your spark . Can you pull the wire out of the connector . Then check for spark . What scale were you using ?
John
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Post by tvnacman on Dec 24, 2014 22:20:43 GMT -5
on your cdi the two wire connector black/white , see if it is ground or just floating . Test it with the key on and key off .
John
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Post by tvnacman on Dec 24, 2014 21:54:12 GMT -5
have you tried a regular spark plug ?
John
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Post by tvnacman on Dec 24, 2014 15:08:11 GMT -5
I would recheck the pulse voltage with it unplugged .
John
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Post by tvnacman on Dec 24, 2014 14:58:07 GMT -5
check the resistance of the pick up coil .
John
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Post by tvnacman on Dec 24, 2014 14:25:05 GMT -5
you should have gone back to the 50v scale and rechecked the power .
never mind above check the pulse coil sounds like its no good . make sure its tight and close to the flywheel and not hitting .
John
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Post by tvnacman on Dec 24, 2014 13:49:33 GMT -5
the black/red is power to power ignition 40vac is great !!
the blue/yellow is your pick up/pulse .5vac .
both to ground .
John
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Post by tvnacman on Dec 24, 2014 11:28:48 GMT -5
Well your looking to test the ignition circuit 14 or 16 gauge wire is fine 14 is fine for most items on the scooters except the electric start .
off your stator you have you have to bullet connectors one is black/red the other is blue/white or blue/yellow , your looking for .5 vac while cranking .
John
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Post by tvnacman on Dec 24, 2014 10:15:28 GMT -5
under the display is a flat head screw , if you turn it a very little it will move the pointer . I have not used an analog meter in a long time , but in some cases it is the better choice . If your power pulse and grounds are good the we need to start looking into cdi and coil . I know brand new , but have they be tested ? I have seen a working coil and cdi on a poor running engine , when you change the cdi or coil it runs different . Here is what I think is going on that is a huge BBK with a lot of compression it labors to crank over . Connect jumper cables from a car to your battery (DO NOT RUN THE CAR ENGINE) see if it improves the cranking . A lot of times the timing can cause kickbacks and poor cranking and starting . A lot of guys installed this with nice positive change . If you look at the list of mods in peoples signature Variable timing cdi . Non of it means anything if you have a weak battery , have you tried to kick it started ? John |
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Post by tvnacman on Dec 23, 2014 20:38:24 GMT -5
I hope you zeroed the meter before you took the voltage reading .
John
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Post by tvnacman on Dec 23, 2014 19:39:53 GMT -5
the red numbers on the bottom is what you want to use to check for power and pulse . The 10 scale for checking pulse . the 250 for power . Do you need to know how to determine the actual voltage .
Pic of the cdi with the wires
John
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Post by tvnacman on Dec 23, 2014 18:51:34 GMT -5
in the battery box is the cdi and I think it is dc shoot a picture of it , show the wires and colors .
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Post by tvnacman on Dec 23, 2014 18:45:03 GMT -5
I did not see the red spark , I did not finish watching the long video .
use the jumpers in addition to the existing harness/wires connection .
John
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