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Post by reveeen on May 20, 2011 16:06:46 GMT -5
I'm working on a 50cc GY6 motor. I *suspect* someone boosted this thing with a car battery connected backwards letting the "evil magic Chinese smoke monster" out of many electrical components at one time. My stator appears dead (at the moment I'm just looking to fire a plug), I have neither CDI voltage, nor trigger voltage, ohm meter readings are "open" on both.
NOW:
I would like to replace this stator (but I don't "have it in my hand", yet), it has 4 wires coming out of it (CDI voltage, trigger, and 2 charging). Is there any way of telling what I want to order? AND, Will a 150cc GY6 stator fit in there?
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Post by 90GTVert on May 20, 2011 17:22:06 GMT -5
I dunno about the 150, I'm gonna guess no. If you have a 6 coil stator you can upgrade to an 8 coil. I don't think you have upgrade options (unless there's some aftermarket stator out there) if you already have an 8 coil. I believe 6 and 8 coil models use different flywheels. 8 coil is what you are most likely to find. Check out the pics and specs from PFS... www.partsforscooters.com/Vehicle-Type/50cc-4-stroke-QMB139-Magneto-Oil-Pump-Parts |
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Post by reveeen on May 20, 2011 17:59:15 GMT -5
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Post by shakerdriver on May 20, 2011 20:13:50 GMT -5
I can tell ya that a 150 and 50 stators are different, mainly in diameter size. I'll have to check in the morning but I'm pretty sure I've got an extra 50 stator laying around in the garage.
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Post by 2strokd on May 20, 2011 23:53:43 GMT -5
Not all of em are different.....
I worked on a 150 that had a little 6 pole GY6 50 stator in it from factory. It was a Wildfire with a shortcase.
Anyway, you need to get the flywheel off and take a look at what you have. See if its a 6 or 8, or even 11pole stator and go from there.
Scappydog has quite a few of em with pics. You can check out the 50 and 150 ones and see what you need ;D
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Post by Fox on May 21, 2011 0:39:06 GMT -5
I have a 50 stator out there that might be right if shakerdriver's stator isn't the right one.
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Post by reveeen on May 21, 2011 4:50:41 GMT -5
Thanks for the replies fellas...........I won't be able to get back to it before tomorrow (at the earliest) to take it apart and figure out what is in there......
It's a good thing this scooter was CHEAP...... I bought it not running, and just about everything that could be messed up, is.
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Post by Goosey on May 21, 2011 21:30:07 GMT -5
They are different, and you do need to see what you have first, or you'll just end up blowing more stuff out. Did you check the light bulbs too?
I also have an 8 coil 50cc stator with that plug type you can have for cost of shipping. i bought it out of curiosity to compare with my 150cc stator.
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Post by shakerdriver on May 21, 2011 21:42:51 GMT -5
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Post by Goosey on May 21, 2011 21:57:33 GMT -5
Ok, what I have is the type -1 with the 2 wires in a 3 plug, not a 4 plug. If the wires are correct, the plastic plug ends can be swapped out though. Been there done that.
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Post by reveeen on May 21, 2011 23:23:36 GMT -5
Well, ok...... with some luck I will have it out in my hand later this afternoon (it all depends on the kind, and quantity, of hoops I get to jump through @ work today).
Ok.... the confusion is clearing:
As long as you (I) have ignition power and ignition trigger, the 2/3 wire charging portion is no matter. In the 2 wire set-up, the 2 wires (yellow, white) are AC volts (to the regulator). In the 3 wire set-up, the yellow, white wires are AC volts to the regulator, and the remaining green wire is simply a ground. In the case of a 4 wire regulator the green wire would not be connected...... and only used if you have a 5 wire regulator (maybe the stator has a higher output and they do not wish to rely on engine case grounding?)
Some more confusion cleared up:
The ignition power (measured with a volt meter, AC volts) at kick-over (or on the starter) should be 50-65 volts (typically this is the red/black wire from the stator)
The trigger from the pick-up coil (measured again, with a volt meter, AC volts) at kick-over (or on the starter) should be .5-.7V (typically this is the yellow/blue wire from the stator) it is pulsed and a bit harder to measure (you need a "fast" volt meter).
*it seems the threshold trigger voltage @ the CDI is .5 VAC, any lower and the CDI will not trigger*
Now that you have the engine idling the voltage from the charging portion (yellow white wires from the stator) should be 9.6 VAC, or higher.
Now the question is physical size?
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