Electricle Problem By bdub (Read 1,058 times)

[bdub]

So i was driving to walmart and it started raining on the way back. When i applied the brake at a stop light it shocked both my hands for a second then stopped. Went to a gas station to fill up the back tire with air and the battery was dead when i tried to take off. Now when i put the key in the lights don't turn on and nothing electrical happens. I have bought a new batter and fully charged it but still nothing. Any ideas?

I'm thinking it's the wiring harness, but that's next to impossible to replace from what i have heard.

[sprocket]

Rain and wet and wires don't go together... check the ground wire that goes from the battery to the frame. It is usually black. The connection must be clean and tight...

[Bashan]

Well I must agree with Sprocket, wet and exposed wires=trouble. I doubt you'll need a whole new harness, just find the parts that shorted. For one thing, everything is dead, have you checked the main fuse? Rich

[tvnacman]

I second check the fuse
I second check the grounds

[bdub]

Ok checked the ground and the fuse, both are ok. Thing is i had to rig my kill switch because the other one wasn't on there, and i think one of the caps came off. With that what do you think it is?

[sprocket]

The kill switch sounds like the problem...it is connect to the CDI...just replace it...

[Cruiser]

On a generic 50cc, the kill switch controls the CDI and nothing else. Regardless of what's happening with the kill switch, the electrical circuits in the rest of the scoot should function normally. The brake lights, horn, and fuel meter should still be working along with the starting circuit. It sounds like your original battery may still be good since the new one did nothing to correct the problem.

Since the new battery is good, and the main fuse is good along with the connections from the battery and the fuse holder, and you have a good ground, the only other thing that would cause a complete dead condition would be an ignition switch problem or a loose feed wire (red) going to the ignition switch or coming out of the ignition switch (black). The easiest way to check this is with a multimeter to check the presence of voltage at these points.

[Bashan]

You can use a continuity tester on a 150cc ignition switch to see if it's doing what it's supposed to, I doubt it's much different from a 50cc. You've got four wires, in the ON position the red from the battery is connected to the black to energize the starting circuit when the brake is pulled. In the off position the killwire is grounded out. Here's a link to the test that's in the tech library. Rich

[bdub]

On my kill switch there are 5 wires. Green, Brown, Black, Black/white, and blue. It's wired the same as it was before it quite working. The wire that had the cap off was the black/white ground wire, which wasn't twisted with anything because its the ground and it wouldn't start that way, but i think the rain caused it to ground off with the entire bike, due to it shocking me through the brake levers.

[bdub]

Is it possible to fry the dash or cdi that way? Thinking those may be my trouble points.

[sprocket]

The black and white wire grounds the CDI...that is what kills the engine...

You have no electrical stuff happening like lights etc.. so it is a problem with the battery, or the ignition switch etc...on the DC circuits.

When you turn on the ignition switch the lights on the dash, brake lights etc should function...


I suspect it is a ground wire or the fuse.. easy to test...

Take the battery out of the scooter and try and kick start it.. it should run...

[bdub]

thing about the kick start.... i had my scooter worked on bout 2months back and when i got it back they had "forgotten" to put it back on. So it's about and hour from were i am, and it would cost more to get it(along with the trouble of telling them that they messed up) then it would be to buy a new one. But im going to check all the grounds and the ignition wires, and possibly order a new cdi. need a new one eventualy anyway

[bdub]

never mind, i dont deserve to work on scooters. I got it working

[bdub]

Haha well don't say i didn't mention so, but apparently the ignition has three settings on it. I didn't know this and was putting the key in while the ignition was in locked mode and turning it clockwise to the off position.

There was a problem with the ignition switch and it wouldn't let me turn it all the way to the on position.

k.i.s.s. method turned out to work perfectly, lesson learned.

[Cruiser]

Apr 15, 2011 21:17:19 GMT -6 Cruiser said:

Since the new battery is good, and the main fuse is good along with the connections from the battery and the fuse holder, and you have a good ground, the only other thing that would cause a complete dead condition would be an ignition switch problem or a loose feed wire (red) going to the ignition switch or coming out of the ignition switch (black). The easiest way to check this is with a multimeter to check the presence of voltage at these points.

Yep, not turning on the ignition switch would certainly keep the power from going to the scoot. But you would have been able to see that with the above check. Live and learn, bdub, I'm glad you got the scoot back on the road.