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Post by armen444 on Mar 12, 2012 4:20:17 GMT -5
Hey guys, as good as i am with fixing, moding, and trouble shooting my bike, i think im going to need to ask for help on this one  So my bike runs perfectly, starts perfectly, and all the electrical components work perfectly. The problem is this, the CDI seems to work (its a performance CDI with a blinking LED), my spark plug is brand new and have used it for 400KM so far and shows no sign of too lean or too rich (just slightly on the rich side) the coil is a brand new performance coil which i have checked for continuity and it passed. BUT NO SPARK!!!! What could be the problem? i was toying around with the lights in my dashboard, and thought maybe the kill switch button might have been accidentally disconnected, but i opened it up again and checked, and it was connected, so its not a stupid mistake  bike turns over like normal, like previously stated all components are working properly, but i just cant get a spark! If you have any suggestions on what it might be, PLEASE let me know because i have tried everything to the best of my knowledge at this point! Im going to strip the bike down tomorow to find a broken lead somewhere because i seriously cant think of anything else Any help will be greatly appreciated, thanks dawgs! P.S i didnt get a chance to check out my stator assembly. which by the way i have never had to open up, so if there can be a problem with my stator how would i know? |
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Post by terrilee on Mar 12, 2012 8:52:27 GMT -5
well- lol
i guess u dont read many of my threads.
im having the same prob.
do u have a VOM. ?
i am not gonna say which colors etc, cause im not looking at the pics
or at chrissy
theres a wire coming from ur magneto
usally has a 'bullet' connector,
u test ur magneto on that wire
should test out to 50-100
chrissy was less then 25 so magnetos toast
here let me see....scooterdoc.proboards.com/index.cgi?board=electrical&action=display&thread=1027
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Post by armen444 on Mar 12, 2012 11:19:07 GMT -5
I know exactly which wire your talking about terrilee! It is connected, but i wasnt aware that it was that specific wire which carries the AC current to the CDI! ill definitely check it out at once! i really hope your wrong because i dont want to buy a new Stator but on the other hand if your right, you solved my problem  |
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Post by armen444 on Mar 12, 2012 11:28:29 GMT -5
Also, forgot to mention, could a burned out rectifier be the problem? Is there any way i can test to see if my regulator is actually working?
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Post by armen444 on Mar 13, 2012 2:30:06 GMT -5
well- lol
i guess u dont read many of my threads.
im having the same prob.
do u have a VOM. ?
i am not gonna say which colors etc, cause im not looking at the pics
or at chrissy
theres a wire coming from ur magneto
usally has a 'bullet' connector,
u test ur magneto on that wire
should test out to 50-100
chrissy was less then 25 so magnetos toast
here let me see....scooterdoc.proboards.com/index.cgi?board=electrical&action=display&thread=1027 YOU GOT IT TERRILEE! My stator was working fine! putting out 85VAC but my magneto was only putting out .2-.3VAC so in essence, the bike works fine, it just wasnt getting enough juice from the magneto to set off the capacitors in the CDI. So what did i do to fix it? I did alot of reading about this part of the bike (Magneto, Stator, Flywheel combo) and read that cleaning it up a little bit might help. So i wiped it clean (Magneto and flywheel) it did help a little bit, shot up to .4V, unfortunately still not enough. So i kinda gave up untill i saw that there is supposed to be a gap between magnet and housing, mine had a gap but it was filled with GUNK! so i took out my fine screwdriver set and started picking at it untill i was able to fit some sort of tissue/cloth in there to get the finer pieces out. VIOLA!!!! instant spark! I didnt check it with the VOM because it started on the first try. So ya thanks again Terrilee! Revolution is now back on the road with new parts and a face lift. will be making a new "rebuild" thread on her for all parts/accessories/modification/tolarances used to achieve a high performance look and function |
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Post by terrilee on Mar 13, 2012 8:43:19 GMT -5
no ty
i was just surprised 'some' of the experts didnt jump
in and tell me i was full of sh&t again.
i know im usually wrong, but it seems everyone always jumps on the same , diagnosis and never think 'outa the box'
and when someone actually says i was right
OMG
glad ur up and running
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Post by byseacall on Mar 14, 2012 22:15:45 GMT -5
I might be having this same problem. Did you take the fly wheel off?
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Post by armen444 on Mar 14, 2012 23:28:05 GMT -5
nop i was hoping the same thing when i started the dissassembly! all you have to do is take off the fan housing ( shroud) take the 4 bolts off of the fan, remove the fan, and there is the stator right infront of you with 2 bolts attached to it, remove the 2 bolts, disconnect the wire, and remove the stator, clean it up (especially around the silver magnet) bolt it back on properly, connect the wire, attach the fan, and put the shroud on and your done. Hope it works out for you too! good luck |
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Post by byseacall on Mar 15, 2012 21:14:21 GMT -5
Did that tonight and no luck. Thanks though. I'm thinking the cdi or/and coil now. No spark at all, I can even hold the spark plug tip and ground it and nothing.
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Post by armen444 on Mar 15, 2012 22:00:07 GMT -5
Well in that case your magneto could be fried. Are you getting at lease .5VAC on it? it should be between .5VAC-2.0VAC. all you have to do in order to check is connect one wire of your voltmeter to the wire coming from the stator, and attach the other lead to ground (cylinder head), make sure to have your DMM set to VAC!
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Post by wile on Mar 15, 2012 22:30:11 GMT -5
Did that tonight and no luck. Thanks though. I'm thinking the cdi or/and coil now. No spark at all, I can even hold the spark plug tip and ground it and nothing. Just a thought before you start replaceing CDI and or COIL IS YOUR KILL SWITCH on the run position? Also try takeing the KILL SWITCH wire OFF the CDI it could also be your switch up by the handlebars. Also check the Ground Wire from your Motor to the Frame without the Ground wire you will not get a spark as well. Wile |
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Post by byseacall on Mar 15, 2012 23:04:43 GMT -5
I have thought of the kill switch being the problem. Is there a way to bypass that? It is an unnecessary feature. Which wire would that be to take off the CDI ? As far as the grounding the bike is under a year, always garage kept and never run in the rain, but I will check also. Thank you all for your help, I am new at this motor problems, but can relate good to car motor problems pretty good. Just need to learn where thing go from the key to the exhaust. I have learn alot here by the way.
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Post by wile on Mar 15, 2012 23:08:09 GMT -5
Here you go , the Kill Wire is the Top One on the two plug side Just pull the wire off. Wile  |
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Post by byseacall on Mar 15, 2012 23:14:57 GMT -5
Thanks man, that was fast.
I had posted this on a different thread. Just as a background. Hate to hijack this thread, but hey if it helps other people then cool:
I've been noticing that at night when I brake the headlights dim yellowish. Is that a sign of a cdi going bad? Battery is holding charge OK.
Oh, and also would it be a coincidence that a few week back the blinker stopped working? Front works but not the back and the flasher on the dash blinks faster when it's on that setting. Few times when I turned the handle bars all the way to the left and the left signal on it made a grrrrr sound. Anyone has this happened?
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Post by wile on Mar 15, 2012 23:45:12 GMT -5
Byseacall,
Check the bulbs they are probably burned out, that is why the dash indicator flashs faster.
Wile
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Post by byseacall on Mar 15, 2012 23:51:46 GMT -5
Yes. Both are good. Switched them and not a change. I think I'm going to have to take the front end off and see if there is a wire grounding. Thanks wile and everyone.
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Post by byseacall on Mar 17, 2012 20:31:38 GMT -5
Is there other fuses on these things besides the one by the battery?
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Post by byseacall on Mar 17, 2012 20:32:53 GMT -5
Sorry, wrong thread.
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Post by glenn1951 on Mar 17, 2012 20:41:46 GMT -5
HELP!!!!!! I'm a good mech but hate electrical,P.C.s also. New to this site. I have same prob as NO FIRE, purchased new CDI & matched coil. Still NO FIRE. Scoot is Longbo 150T-12,GY6 150cc,s 658mi. which I put 200 mi. of it myself. It has alarm which My Darling Grandson pushed ''I'm pretty sure of pushed buttons, it ran fine till he left. NO FIRE SINCE, EVEN with new coil & CDI. i'll tear front end off tomarrow, but any coments & help would be GREATLY APPRECIATED,I taught diesel in the Army[69-72), but ,so much for that!! I'm no dummy when it comes to any gasoline engine, BUTTTT, I HATE ELECTRICAL!! I got scoot at auction,had to straight wire,Always started & ran great, 63 m.p.h. No smoke or nothin bad, valves,flooding,etc. FINE!! help!!! & THANKS .
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Post by mainepeace on Mar 17, 2012 22:50:53 GMT -5
Check the kill switch. If it was working before the button pushing, then it's something simple. I would check the remote. Why not unplug the battery and try to "reset" the alarm system if it's stuck in the "kill" mode.
Greg
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Post by byseacall on Mar 19, 2012 21:37:49 GMT -5
Not my thread and it is unrelated to the no spark, (sorry). The blinker thing came up and I'm here to share with you all. It was not the bulbs. Took the front plastic off and was checking around for a grounded wire. As I was moving things around, all of the sudden the blinker started working, so I started looking a little closer in that area right in front of the handle bars down tube. Apparently they took all the orange wires (in my case) that control the signal lights on the top (4 in all). All those wires came to a point were they were all solder together on to one, that was suppose to go to the back blinker. Well that soldering job was not that great and it came loose and eventually off. Reconnected and all is good with the blinking. It is safer on the streets that way. Hope that helps someone one day.
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So my bike runs perfectly, starts perfectly, and all the electrical components work perfectly. The problem is this, the CDI seems to work (its a performance CDI with a blinking LED), my spark plug is brand new and have used it for 400KM so far and shows no sign of too lean or too rich (just slightly on the rich side) the coil is a brand new performance coil which i have checked for continuity and it passed. BUT NO SPARK!!!! What could be the problem? i was toying around with the lights in my dashboard, and thought maybe the kill switch button might have been accidentally disconnected, but i opened it up again and checked, and it was connected, so its not a stupid mistake 
bike turns over like normal, like previously stated all components are working properly, but i just cant get a spark! If you have any suggestions on what it might be, PLEASE let me know because i have tried everything to the best of my knowledge at this point! Im going to strip the bike down tomorow to find a broken lead somewhere because i seriously cant think of anything else 
