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Post by gyguy on Aug 2, 2014 20:37:25 GMT -5
So I have a gy6 50cc and it dosen't run. I bought it for 60 bucks. The guy who sold it to me was moving out of the house i was moving into and said it just needed a new battery (apparently that was a load of crap). After hooking up a battery I got nothing when turning the ignition. So, Here is what i know.
1. spark plug does spark when i kickstart. (does this mean my coil and stator are good??)
2. when i hooked up the battery and pressed the horn, it worked 1x then stopped. (i used a 12v 12ah battery, did this fry the fuses?) Is that battery a problem?
My instinct tells me it could be either the ignition, fuses, and possibly the starter. Any help or ideas?
Thanks,
GyGuy
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Post by bashan on Aug 2, 2014 22:25:11 GMT -5
If you are getting a nice blue spark when you kick the engine over it means you have a good power feed on the red/black from the stator to the CDI, a good trigger feed from the pulse coil to the CDI, a good CDI to send the spark down stream, and a good coil to send it on to the plug.
Did you check the fuse? If it's a 50cc you probably only have one near the battery. It will be in the thin red wire in a holder.
So what is it doing? It won't turn over, no lights, won't start with the kick? Did you make sure the killswitch is set to run? Sometimes if you bump them they will shut everything down. Probably not the starter, doesn't sound like it, but possible if it's shorted.
You could put a truck battery in your scooter and it will not harm it, so you did no damage there, don't worry about that. A bike's system draws what it needs, the electrons from the battery do not force themselves into a system, they are simply there for the asking of the bike. What DOES torch a bike is jumping it while the jump vehicle is running! Poof.....new regulator. |
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Post by gyguy on Aug 2, 2014 22:42:39 GMT -5
OK SO! I found one problem. The fuse was blown. I replaced it and all the accessories came on. I pressed the ignition switch and NADA. I did check the killswitch and it was set to run. Any ideas on the next step?
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Post by JerryScript on Aug 2, 2014 23:06:08 GMT -5
Are you holding one of the brake levers when you press the start button (required)?
Has the battery been tested, or are you sure it is good?
Now that you have replaced the fuse, have you tried kickstarting it?
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Post by gyguy on Aug 2, 2014 23:24:37 GMT -5
Ok didnt know that I might need to hold the brake to start it. Battery is fine, and I havent tried kickstarting it yet. Ill try the brake idea. I am wondering if it is a faulty kill switch or ignition switch. I have no idea if it could be the starter as well.
Would the blown fuse prevent the scooter from being kickstarted?
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Post by jjoshua20213 on Aug 3, 2014 0:30:25 GMT -5
What DOES torch a bike is jumping it while the jump vehicle is running! Poof.....new regulator. I've tested this "theory" and that's not true. I've jumped 3 bikes off running cars multiple times on each one. Even revved the engine to get the starter cranking faster. Nothing blown or damage done and nothing down the road.. It helps low and high compression bikes start, and gives me a better sound analysis of why the engine is not combusting.I had a bike with a bad battery and broken kick starter, and bad engine that frequently had to get jumped by random people. |
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Post by jjoshua20213 on Aug 3, 2014 1:43:01 GMT -5
Ok didnt know that I might need to hold the brake to start it. Battery is fine, and I havent tried kickstarting it yet. Ill try the brake idea. I am wondering if it is a faulty kill switch or ignition switch. I have no idea if it could be the starter as well. Would the blown fuse prevent the scooter from being kickstarted? When you turn the key check to see if the brake light is working when you pull the lever. If its not you may have a problem with the brake light switch . "Not un-common" After you establish that the brake light works and your kill switch is on try this.... Look for this on your bike--->  That's your "Starter relay" or "Starter solenoid" Normally located under seat, and attached to the frame in the rubber holder shown. Will have a black rubber like cover over it. You see the two screw looking things? Well on your bike they will have wires on them that was just a pic on the part its self.. Simply get something metal and connect the two. You can use a screw driver. Your starter should activate without the brake or key being in the bike, as long as the battery is hooked up your starter should move. If the starter moves, simply replace the starter relay to get the starter moving with the button again. If not you need to test or just replace your starter..... 20 dollar parts where talking about. Yes the bike will start with the kick start and no battery and a blown fuse.. One the the bike is running it should power everything from the stator, unless the bike is dc powered. Spark when you kick means its ready to start. the carb may be junked up. Try starter fluid and see how it acts. |
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Post by gyguy on Aug 3, 2014 8:00:53 GMT -5
awesome, thanks! That should solve my problems. Once my wifey gives me spare time ill give it a whirl.
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Post by tvnacman on Aug 3, 2014 8:28:40 GMT -5
when checking for brake lights or for starting it can work with either brake lever so try both . Be sure you have an engine ground that will keep the electric start from working , you should hear a click when a brake is applied and starter button is pressed .
John
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Post by bashan on Aug 3, 2014 16:29:51 GMT -5
Respectfully disagree on the jumping non-theory with the jump vehicle running. It doesn't happen everytime because the jump vehicle's regulator is working. If you're lucky the voltage stays low enough to not trash your R/R. Your R/R is not offline during a jump, electrons move from negative to positive. So they flow through the ground of the scooter's R/R, THROUGH the R/R, and out to the red wire. When you jump your putting electrons through the negative terminal of your battery, through your R/R like they always do, and out to the positive terminal like they always do. That's not a problem when you just jump from a battery, it takes what it needs. But if the jump is running, THAT alternator R/R can spike in response to the draw and send a surge through your R/R...poof. That's great you never had any bad effects from that. But I know more than a few that have. It's not fair to tell young members that it's OK when you're basing your comments on just your own experiences. There's a lot of folks that have had trouble jump starting with the jump vehicle running, a quick Google brings up volumes. Here's a chart of the electron flow:
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Post by tvnacman on Aug 3, 2014 18:39:15 GMT -5
What DOES torch a bike is jumping it while the jump vehicle is running! Poof.....new regulator. I've tested this "theory" and that's not true. I've jumped 3 bikes off running cars multiple times on each one. Even revved the engine to get the starter cranking faster. Nothing blown or damage done and nothing down the road.. It helps low and high compression bikes start, and gives me a better sound analysis of why the engine is not combusting.I had a bike with a bad battery and broken kick starter, and bad engine that frequently had to get jumped by random people. Have you thought maybe your battery was dead because of a blown regulator from the first jump off the running car ? Lets say the regulator on the scooter dumps anything over 14vdc to ground , regulators in the scooters are tiny . Say the car regulator dumps anything over 14.5vdc , say its a 125amp alternator in the car . what do you think will happen when you apply 14.5vdc to a scooter regulator that dumps anything over 14vdc it starts dumping that .5vdc to ground , then the cars regulator pushes up output to bring it back to 14.5vdc and has over 100amp to do it with . Do you think the tiny regulator on the scooter is going to win ? You do what works for you but if you often have to jump the battery then there is some other problem . I can speak for myself I do not jump off a running car , just my 2 cents . John |
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Post by jjoshua20213 on Aug 4, 2014 0:14:24 GMT -5
I understand the logistics of it and agree with you, but I've done it over 10 times in cars as old as 1990. Maybe the regulator in those cars were bad and that's why people had a hard time. Due of the mechanics of the situation I would not say its safe to jump start a car with the engine running. However it has saved my in several occasions when the bike wouldn't start with brand new cables and clean contacts and the vehicle off . Turned it on and revved it and the scooter ran, got me home so I could see the disaster in my combustion chamber. Regulators go as cheap as 8 bucks these days, I always have a spare regulator,and regulator just in case. Only had a regulator go once and that was on this extremely old. It went slowly. old bike I had that had and abused and never maintained when I got it. |
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Post by jjoshua20213 on Aug 4, 2014 0:41:01 GMT -5
I've tested this "theory" and that's not true. I've jumped 3 bikes off running cars multiple times on each one. Even revved the engine to get the starter cranking faster. Nothing blown or damage done and nothing down the road.. It helps low and high compression bikes start, and gives me a better sound analysis of why the engine is not combusting.I had a bike with a bad battery and broken kick starter, and bad engine that frequently had to get jumped by random people. Have you thought maybe your battery was dead because of a blown regulator from the first jump off the running car ? Battery was used and old when I got it. It worked worked awhile then died, not it just was dead when I went to start,, I cranked for like 2 or 3 times for like 30 secs each before it got too weak. This was about a year and a half ago when I got my first Sh!ty old and used scooter scooter and didn't know how to adjust/jet the carb and adjust the valves. Once I figured it out I had no problem with the battery because the bike started decently. |
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Post by gyguy on Aug 4, 2014 18:11:51 GMT -5
For the record, once I pulled the break the scooter wanted to turn over. So it should work after some TLC
Thanks all
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Post by tvnacman on Aug 4, 2014 18:44:58 GMT -5
For the record, once I pulled the break the scooter wanted to turn over. So it should work after some TLC Thanks all Nice to see uour getting somewhere . John |
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