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Post by elektrey on Jun 9, 2015 21:40:56 GMT -5
Hi Everyone
I've got the following situation:
Stator went bad
This model used initially an 8 pole stator and flywheel rotor, but switched during production sometime to a 4 pole stator and flywheel rotor.
My model is the early variety using an 8 pole. I can only find a replacement stator through the company and it will cost something like $110 + shipping (yikes)
I have, however, found a 4 pole stator online for $31 shipped.
Assuming it fits the same as the other stator and screws in the same (99% sure it does), will a 4 pole stator work in a flywheel that has 8 magnets?
Second related question: if it will work, will it work the same as if it was a 4 magnet rotor, or how much loss of power would we be talking?
Thanks for any insight into this issue.
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Post by cyborg on Jun 9, 2015 21:51:01 GMT -5
I don't see why not
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Post by rcq92130 on Jun 9, 2015 21:55:16 GMT -5
Hi Everyone I've got the following situation: Stator went bad This model used initially an 8 pole stator and flywheel rotor, but switched during production sometime to a 4 pole stator and flywheel rotor. My model is the early variety using an 8 pole. I can only find a replacement stator through the company and it will cost something like $110 + shipping (yikes) I have, however, found a 4 pole stator online for $31 shipped. Assuming it fits the same as the other stator and screws in the same (99% sure it does), will a 4 pole stator work in a flywheel that has 8 magnets? Second related question: if it will work, will it work the same as if it was a 4 magnet rotor, or how much loss of power would we be talking? Thanks for any insight into this issue. I have absolutely no idea at all who has been steering you to wherever it is you have been getting those 100% absurd prices. Here is a highly respected supplier to many here: www.ebay.com/sch/m.html?_odkw=&_ssn=gy6racingteam&hash=item2c965150a9&item=191500472489&pt=Motorcycles_Parts_Accessories&_osacat=0&vxp=mtr&_from=R40&_trksid=p2046732.m570.l1313.TR10.TRC0.A0.H0.Xstator.TRS0&_nkw=stator&_sacat=0An even better supplier (because he actually tests parts he sells) is the member tvnacman (his name is John - www.nycscooterparts.com/). Electrical items are his specialty, and ghe can help you figure out what will work in your specific application |
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Post by elektrey on Jun 9, 2015 22:03:41 GMT -5
Sorry I should clarify, It is a TGB scooter and therefore the part is extremely specific.
the GY6 stators had the mounting holes too close together to work.
I don't see why it would work either, but then what is the technical reason for having the flywheel magnet count match the stator coil/pole count?
Also john/tvnacman if you want to help me find something these are the dimensions:
OD of stator 83-84mm
ID of stator 36mm
mounting holes center to center: 47mm
Also it is an AC stator with an exciter coil wire, a wire for the rectifier, and a wire for the headlights which is also wired to the rectifier.
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Post by tvnacman on Jun 10, 2015 4:00:37 GMT -5
Sorry I should clarify, It is a TGB scooter and therefore the part is extremely specific. the GY6 stators had the mounting holes too close together to work. I don't see why it would work either, but then what is the technical reason for having the flywheel magnet count match the stator coil/pole count? Also john/tvnacman if you want to help me find something these are the dimensions: OD of stator 83-84mm ID of stator 36mm mounting holes center to center: 47mm Also it is an AC stator with an exciter coil wire, a wire for the rectifier, and a wire for the headlights which is also wired to the rectifier. I would be happy to help, but I need some more info a few pictures would be best. Engine size, sub model type of engine 2t 4t, engine number. Pictures of the mounting area. John |
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Post by elektrey on Jun 10, 2015 10:49:01 GMT -5
I would be happy to help, but I need some more info a few pictures would be best. Engine size, sub model type of engine 2t 4t, engine number. Pictures of the mounting area. John 50cc original displacement 2 stroke with a 66.6cc big bore kit. TGB Morini-style engine. Similar engines and drivetrains also found on italjet, derbi, suzuki 50cc(s) (some of them) pic of stator  pic of mounting area  pic of stator on mounting area  |
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Post by tvnacman on Jun 11, 2015 11:03:36 GMT -5
did you leave out the pick coil from the picture?
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Post by elektrey on Jun 11, 2015 12:59:11 GMT -5
Yeah I've already removed the pickup coil and ground wire from the stator wiring harness.
you can see they install in the two bolt holes at about 5 o clock down in the bottom right.
the pickup coil itself should work, measured 156 ohm resistance.
It's the exciter coil that was at first giving me huge amounts of resistance, and now it's not even reading continuous.
So I'm just looking for a new stator, I can still use the existing pickup coil.
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Post by chromestarhustler on Jun 11, 2015 13:24:46 GMT -5
might be cheaper to have it rewound.
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Post by elektrey on Jun 11, 2015 13:40:16 GMT -5
Yes perhaps.
I haven't been able to remove the exciter coil, the wire is just too thin and breaks, even tried a box cutter and its impossible to cut through, a real PITA.
also one of the coils broke off from the wires so that would have to be reattached somehow.
On top of that I'm not located anywhere near any electric motor shops or anything of the like so it would mean driving across town to get someone to look at it.
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Post by elektrey on Jun 11, 2015 16:18:01 GMT -5
Going to just order the 4 pole stator and see what that does for me.
Will let you know how it works out.
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Post by geh3333 on Jun 11, 2015 16:42:00 GMT -5
Going to just order the 4 pole stator and see what that does for me. Will let you know how it works out. My 150cc came stock with a 4 pole stator ! |
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Post by elektrey on Jun 18, 2015 17:03:42 GMT -5
Update:
installed stator, got 60vac cranking
spark looks great
Will reassemble bike and see if it runs at a later date.
Will keep updated.
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Post by elektrey on Jun 19, 2015 11:14:29 GMT -5
Scoot started right up! she lives!
Took it around the block for a few minutes, ran perfect!
Going to splice the connector for the charge/lamp coils and test that later on today (probably at night so I can see at what RPMs the headlights fully light up)
Should work though!
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Post by dmartin95 on Jun 19, 2015 12:49:34 GMT -5
Good Job!
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