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Post by alleyoop on Jun 14, 2014 13:02:17 GMT -6
Yes and as you can see on the GIF I put up, the stator actually grounds the COIL completing the circuit and when it does it fires. So you applied 12v to the white thin wire on the COIL and nothing? Do you have a Ground wire from the motor to the frame? And a Ground wire from the Neg Battery Post to the Frame?
Alleyoop
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Post by alleyoop on Jun 13, 2014 22:02:53 GMT -6
Have you tried raising the needle to feed it more fuel in the midrange and a little more on the top end since you say if you lean it out it is worse means you need a little more fuel in the mid-range and top end so you may need to get a little bigger main jet.
Alleyoop
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No fire
by: alleyoop - Jun 13, 2014 20:20:43 GMT -6
Post by alleyoop on Jun 13, 2014 20:20:43 GMT -6
The Enricher is on the Carb and gets voltage after the motor starts. It is used to feed EXTRA FUEL when the motor is COLD. As the motor starts up and is running it feeds voltage to the ENRICHER and it shuts off the EXTRA FUEL after 3-5 minutes. So if you took off the carb and unplugged it or PULLED on the carb it may have pulled on other wires near where it connects to the harness. Alleyoop  |
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No fire
by: alleyoop - Jun 13, 2014 19:25:49 GMT -6
Post by alleyoop on Jun 13, 2014 19:25:49 GMT -6
Ok, taking the carb off and putting it back on HAS NOTHING TO DO WITH SPARK. So let me ask this when you took the carb off did you reach over and UNPLUG the ENRICHER and then go back and PLUG it back in?
If so check the wires there because the wires going to the COIL and a couple of stator wires going to the CDI which are usually plug in are right around there.
You may have accidentally pulled and unplugged one of those wires.
Alleyoop
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No fire
by: alleyoop - Jun 13, 2014 18:38:48 GMT -6
Post by alleyoop on Jun 13, 2014 18:38:48 GMT -6
Grounding a plug to the frame does not mean a thing. It can fire on the frame but it may not fire on the motor. For a plug to fire IF everything else is good the motor has to be grounded to the frame. So to check for spark ALWAYS check on the motor forget about checking on the frame means nothing. Now do you know if you have a DC or AC CDI? If DC then it gets it power when you turn on the KEY to ON straight from the battery. If it is AC then it gets its power when the stator is turning which means when the motor is being turned over with the starter.
But if no spark it could be many things:
A. The boot cap or bad plug
B. The Coil
C. The CDI
D. The Pickup Coil
E. The Stator
F. The Killswitch is not in the run position
If DC it could be the Wire from the KEY SWITCH
Alleyoop
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Post by alleyoop on Jun 13, 2014 18:30:39 GMT -6
You have to be careful with your motor due to the spacing of the studs that hold the jug and head. Yours is not a Standard Gy6 motor is it a little different. So you have to be sure the holes on the jug and head are spaced to fit the studs sticking out of the case.
So you have to measure your stud spacing and that will determine what you can get to replace it with.
Alleyoop
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Post by alleyoop on Jun 13, 2014 14:46:20 GMT -6
I have to say that is a mystery to me and here is the reason I say this. You said you where having problems the motor was not starting THAT has NOTHING TO DO with the SLIDE and MAIN JET. That is the function of the PILOT JET and ENRICHER if there is one on your carb. The slide does not rise until you open the throttle and enough pressure builds in the venturi to get air under the Rubber Diaphgram which actually raises the slide and needle out of the MAIN JET, sort of like what happens with a hot air ballon.
Harleys, Scooters, Dirtbikes, ATVS whatever all work the same way. They all have Carbs some EFI, they all have a coil, cdi and stators and batteries. So if you know one you know how all the others work, just the parts may be different looking but they all do the same thing to make the motor work feed electricity for the lights and gauges.
Alleyoop
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Post by alleyoop on Jun 13, 2014 12:40:04 GMT -6
Here so you can see the valve head missing and the broken valve stem, you just have a hole there no wonder no compression(HAHA). But look for the valve head around where you took it off because it Alleyoop  |
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Post by alleyoop on Jun 12, 2014 21:08:58 GMT -6
GOOD JOB JMI, WOW!! is that a valve with the head missing? where is the valve head(HAHA) or did it fall out when you took the head off. Make sure you drain the oil and clean out the crankcase and don't let crap fall in there.
Alleyoop
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Post by alleyoop on Jun 12, 2014 19:45:26 GMT -6
This will show you what each part is and how-to get it off and put back on: This is a complete TEAR DOWN and a complete PUT BACK TOGETHER of a motor. So you can reference it for anything you want to know GREAT PICTURES. Alleyoop scooterdoc.proboards.com/thread/6884/gy6-project?page=1 |
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Post by alleyoop on Jun 12, 2014 19:40:34 GMT -6
Yep that is it, is it 1 bolt going to the other motor mount or does it have a bolt on each motor mount
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Post by alleyoop on Jun 12, 2014 19:25:38 GMT -6
It is ONE bolt going across or one bolt on each side?
Alleyoop
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Post by alleyoop on Jun 12, 2014 19:19:32 GMT -6
I think I can see it here"  |
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Post by alleyoop on Jun 12, 2014 19:14:12 GMT -6
Ususally right before the carb you either have 1 bolt on each side or 1 long bolt going across the top of the motor near the carb.
Alleyoop
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Post by alleyoop on Jun 12, 2014 18:57:19 GMT -6
Bummer, and yes those are screwed into the CASE of the motor and hold the top end together. But I would take the BOLT out that holds the motor to the motor mounts and drop the front of the motor down just enough to be able to work on it. You can put a block of wood under the motor to rest on. If you strip those long bolts in the case then your in bigger trouble.
I would not take the long studs out.
Alleyoop
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..BAD TO THE BONE..