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  #1  
Old 05-01-2017, 12:38 AM
fan4chevy fan4chevy is offline
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Default Engine Won't Start No Spark Replaced Most Parts

So all of a sudden my gy6 150 engine died and won't start.

I replaced the stator setup
I replaced the coil
I replaced the cdi
I replaced the stator
I replaced the spark plug
I checked the ground and its solid
I charged the battery fully

Still no spark. I tested the kill switch wire by grounding 4 and removing 5 pin as I have seen suggested, no success.

What could be left.
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Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
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  #2  
Old 05-01-2017, 11:06 AM
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Still no spark. I tested the kill switch wire by grounding 4 and removing 5 pin as I have seen suggested, no success.

Not sure what you have tested by description above. To test the kill switch you should have 2 wires going to it. One comes from the ignition the other goes to ground. when you make the switch you ground the ignition killing the engine. Just disconnect the wires from switch and see if you have spark. If you then get spark than switch is bad. If still no spark check the wire going to ignition to ground if grounded than the ignition switch is bad.
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  #3  
Old 05-02-2017, 11:53 AM
fan4chevy fan4chevy is offline
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I tried a different known good ignition switch and still not spark or run.

I pulled the wires from the kill switch. Again no success.
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Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
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  #4  
Old 05-02-2017, 12:46 PM
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Are yo getting power to the cdi?
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  #5  
Old 05-02-2017, 01:29 PM
fan4chevy fan4chevy is offline
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I believe so because the cdi green light is on the cdi box.

I was wondering if it could be a ground issue. However, the main ground looks good and well attached to the engine.
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Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
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  #6  
Old 05-02-2017, 02:30 PM
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You need to check with volt meter or your just guessing.
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  #7  
Old 05-06-2017, 04:40 PM
scjeep4.7HO scjeep4.7HO is offline
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Did you replace with the correct style cdi. Dc or a.c.?
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  #8  
Old 05-07-2017, 09:48 PM
fan4chevy fan4chevy is offline
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Yep I have an AC cdi on it scjeep4.7HO. It is kind of odd because it is an ac system but the lights will work with just key on not running. Also the cdi where there are two wire slots have one wire. I know it is ac but defies the typical AC vs DC cdi wire diagram. If I pull wires off the battery while running it still runs too. When it is working that is.

I have a meter but not sure how to use it to test the system.
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Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
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  #9  
Old 05-07-2017, 11:10 PM
fan4chevy fan4chevy is offline
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Praise be to the Lord!

I got it running. It turned out that even though I replaced the stator, the new pickup coil that is part of the stator was not close to the stator housing pickup. It was like 3/16" away and did not allow for me to do any more adjustments.

So solution was that I pressed the pickup down closest as possible to the housing picking as it could go and then bent it to where it was 17 thousands gap.

I guess, the pickup bracket must have had an incorrect bend in it.

Thanks
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Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
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  #10  
Old 05-08-2017, 07:26 PM
scjeep4.7HO scjeep4.7HO is offline
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Good deal I'm glad you figured it out.
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  #11  
Old 05-08-2017, 11:13 PM
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Good to hear.
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  #12  
Old 05-09-2017, 01:11 AM
fan4chevy fan4chevy is offline
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Thanks guys. I just happened to watch a youtube video and saw the guy say he sets it to 15 thousands or so and so I looked and figured out mine was so far out of tolerance.
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Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
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  #13  
Old 05-09-2017, 09:13 AM
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I have yet to work on a GY6 engine that the pickup has to be adjusted, their just bolt up with no adjustment.
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  #14  
Old 05-09-2017, 10:32 AM
fan4chevy fan4chevy is offline
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That is what I thought too. This is why I never even suspected it as a problem until I saw the video where the guy adjusted it by pushing it down to 15 thousands and then tightening it. However, as mentioned, mine was so far off that I had know adjustment and ti was still like gigantic gap. I can only imagine it was bent or something.
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Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
Reply With Quote
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