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It was the battery, battery store was confused too because the voltage would drop on load then recover to to 12.5 or so. He opened the battery up and the cells were dry probably from over charging. That's interesting because I have had no blow light bulbs or unusual signs of this condition but with out a volt gage it's hard to monitor. Thanks for all help from you guys.

Headlight is disconnected because shielding is removed so it does not come on. What I was referring to was turn signals, instrument lights and rear lights. They are dim then almost go out if brake lever is pulled. Checked the ohms on the small red (fused) wire to the ignition switch 00.1or 0.00. Green wire from frame mount to ignition 00.2 or 0.00. What's frustrating is the green wires are all grounded and so is the engine and frame. But something limits the voltage 12.7/13.0 low to lower. The starter selinoid is 12.7 as well as the wire from it to starter terminal but sometimes with the starter but pressed it gives low groan and the instrument lights go dim.

With the key on the ignition switch, the red and green terminals 12.2 volts.and the battery drops to 7.9 volts, turn key off and it goes back 12.7. That's probably why the lights dim an start groans if even makes noise,

12.7 volts at back of ignition switch with key in off position, turn key to on and it drops to 7.9'or so. Took all green wire connectors off and cleaned each wire and the frame mount as well as the batter terminals with wire wheel on my dermal, so I know that green wires are grounded to the frame. The green and red wires at the rectifier harnes have 12.7 volts with ignition off but drops to 6.8 or so. Is their a way to to take a wire and jump the ignition switch? If the voltage drops when turned to on position does that mean the switch is bad?

50cc Sunny 2011 scooter has no power when the ignition is turned on. Checked battery 12.7 volts. Checked fuse and it's good. Checked main ground and its ok. We're should I go next?

Thanks, I will try it.

Sunny 50cc scooter, replaced carb. Starts, idles and performs great until you go full throttle. Then it bucks until you easy off and reach cruising speed then it's fine again. Carb has 33mm jet and 85mm high speed jet. Any ideas on how to resolve?

Thanks,I. Will see if I can find one locally on Monday.